2026

• Prof. Erturk gives a keynote lecture titled “Hybrid Soft-Hard Material-based Robotic Fish and Architected Structure Concepts for Deep-Sea Applications” at Smart & Soft 2026: the 9th International Conference on Smart Materials and Nanotechnology in Engineering (SMN2026) and the 8th International Conference on Active Materials and Soft Mechatronics (AMSM2026), Jeju Island, South Korea.
• SSDSL and collaborators contribute a presentation titled “Two Topological Classes of Tunable Defect-coupled States in Elastic Lattices” to Society of Engineering Science 63rd Annual Technical Meeting, West Lafayette, IN.
• Prof. Erturk and collaborators receive the Ephrahim Garcia Best Paper Award from the ASME Smart Materials, Adaptive Structures and Intelligent Systems Division (for Ananya’s 2025 paper).
• At ASME 2026 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Albuquerque, NM, SSDSL contributes a presentation titled “Programmable Nonlinear Piezoelectric Metamaterial with Duffing-Type Hardening and Softening Shunts”; and a presentation titled “Modal Transfer Matrix Method for Piezoelectric Composites Supporting Arbitrary Anisotropy, Boundary Conditions, and Excitations.”
• SSDSL contributes an invited talk titled “Balancing Nonlinearity and Dispersion in Piezoelectric Metamaterials for Envelope Solitons and Reservoir Computing” to 1st International Conference on Metamaterials – MetaMAT 2026, Ajaccio, Corsica, France.
• SSDSL and collaborators contribute an invited talk titled “Radiation Control in Fluid-Loaded Metamaterial Waveguides with Space and Time Modulation” to 16th META Conference on Metamaterials, Photonic Crystals and Plasmonics, Dublin, Ireland.
• Prof. Erturk gives a keynote lecture titled “Vibration and Wave Engineering from Hz to MHz Range via Next-Generation Smart/Meta-material Concepts” at 35th International Conference on Adaptive Structures and Technologies, Hong Kong.
• SSDSL contributes an invited talk titled “Spatially and Spectrally Programmable Topological Interface Modes in a Locally Resonant Piezoelectric Metamaterial” to 190th Meeting of the Acoustical Society of America, Philadelphia, PA.
• Prof. Erturk gives an invited seminar titled “Next-Generation Smart/Meta-material Concepts for Dynamic Problems in Clean Energy, Defense, and Healthcare” at NYU Mechanical and Aerospace Engineering and Center for Urban Science and Progress, Brooklyn, NY.
• At APS Global Physics Summit 2026, Denver, CO, SSDSL and collaborators contribute a presentation titled “Stimuli-assisted Smooth Topological Transition in a Hydrogel-filled Maxwell Lattice”; a presentation titled “High-Fidelity TPMS Shell Structures: A New Algorithm for Enhanced Structural Performance”; and SSDSL contributes a presentation titled “Programmable Bioinspired Robotic Fish with Fiber-based Piezoelectric Actuator Array Embedded in an Elastomer.”
• Prof. Erturk gives an invited lecture titled “Structural Dynamics of Dry and Fluid-loaded Cranial Bones in Audio-Frequency and Ultrasonic Regimes” at Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy.
• Prof. Erturk gives an invited talk titled “Good Vibrations and Waves: from Metamaterials and Reservoir Computing to Transcranial Ultrasound and Bioinspired Underwater Robotics” at KOZWAVES 2026, the 7th Australasian Conference on Wave Science, Sydney, Australia.
• SSDSL and collaborators contribute a presentation titled “Frankenshark: Force and Fluid Interactions of Dermal Denticles on a Bioinspired Shark Tail” to SCIB (Society for Integrative and Comparative Biology Annual Meeting) 2026, Portland, OR.
• An SSDSL article in Physical Review Applied is selected as an Editor’s Suggestion.
• Nima and Joe successfully present their Ph.D. proposals. Congrats!
• SSDSL and collaborators publish “Electromechanical Coupling at Tunable Band Extrema in Flexoelectric Metamaterials” in Physical Review Applied.
• SSDSL publishes “Piezo-Antenna: an Electromagnetic-Ultrasonic Data Transfer System” in IEEE Transactions on Antennas and Propagation.
• SSDSL publishes “Programmable Topological and Hybrid Interface Modes in a Resonant Piezoelectric Metamaterial” in Physical Review Applied.
• SSDSL and collaborators publish “Growth Order of Stiff and Soft Domains in Gels Controls Morphology” in iScience.
• SSDSL and collaborators publish “Taming Leaky Waves in Fluid-Loaded Thin Structures via Space- and Time-Modulated Metamaterials” in the Journal of the Mechanics and Physics of Solids.
• SSDSL receives a new Sandia National Laboratories contract for the next stage of megasonics piezo-antenna research.
• SSDSL receives a new three-year Sandia National Laboratories contract on pressure-inversion sensor networks and pitch-and-catch techniques for ablation measurements.

2025

• Prof. Erturk gives a distinguished lecture titled “Vibration and Wave Engineering in Emerging Fields and Across Disciplines: Nonlinearities, Multiphysics Behavior, and Applications” at Mechanical Engineering Distinguished Lecture Series, The Pennsylvania State University, University Park, PA.
• At Society of Engineering Science 62nd Annual Technical Meeting, Atlanta, GA, SSDSL contributes a presentation titled “Data-Driven Design Customization of Gradient-index Phononic Crystal Lenses for Ultrasonic Wave Manipulation”; a presentation titled “Nonlinear Piezoelectric Metamaterial for Soliton-based Reservoir Computing”; a presentation titled “Programmable Piezoelectric Metamaterials for Rayleigh and Lamb Wave Mode Conversion”; a presentation titled “High-Intensity Focused Ultrasound for High Strain Rate Excitation and Delamination of Adhesively Bonded Thin Films”; a presentation titled “A Bioinspired Soft-Hard Robotic Fish with Distributed Piezoelectric Actuation Embedded in Silicone”; a presentation titled “Cranial Bone Sutures as a Source of Nonlinearity in Skull Mechanics”; SSDSL and collaborators contribute a presentation titled “Dynamic Testing of a Piezoelectric-Hydrogel Actuator Structure Under High Hydrostatic Pressures”.
• SSDSL and collaborators contribute a conference paper titled “Hybrid Phased Array Transducer for Transcranial Ultrasound Imaging and Guidance of Leaky Lamb Waves to Characterize Intracerebral Hemorrhage” to IEEE International Ultrasonics Symposium, Utrecht, Netherlands.
• SSDSL contributes a presentation titled “Swimming Characterization of a Bioinspired Robotic Fish with Hybrid Piezoelectric-Servomotor Actuation” to ASME 2025 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, St. Louis, MO.
• SSDSL contributes a presentation titled “Programmable Solitons in an Electromechanical Metamaterial Obeying the Nonlinear Schrödinger Equation” to NODYCON 2025 4th International Nonlinear Dynamics Conference, Hoboken, NJ.
• Prof. Erturk gives a keynote lecture titled “Phononic and Metamaterial Concepts for Enhanced Energy Harvesting from Elastic and Acoustic Waves” at 6th International Conference on Vibration and Energy Harvesting Applications, Hong Kong.
• SSDSL contributes a conference paper titled “Tunable Envelope Solitons in a Piezoelectric Metamaterial Obeying the Nonlinear Schrödinger Equation” to Forum Acusticum / Euronoise 2025, Malaga, Spain.
• At APS Meeting: Topical Group on Shock Compression of Condensed Matters, Washington, D.C, SSDSL and collaborators contribute a presentation titled “High-Intensity Focused Ultrasound for High Strain Rate Spall Testing”; SSDSL contributes a presentation titled “Shock and Acoustic Wave Dissipation in Polyethylene-Ceria Nanocomposites.”
• SSDSL contributes an invited talk titled “Nonlinear Piezoelectric Metamaterial for Soliton-based Reservoir Computing” to 34th International Conference on Adaptive Structures and Technologies, Capua, Italy.
• SSDSL contributes a conference paper titled “Bioinspired Hybrid Piezoelectric-Servomotor Actuated Untethered Robotic Fish” to 6th International Conference on Artificial Intelligence, Robotics, and Control (AIRC 2025), Savannah, GA.
• At 32nd SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Vancouver, Canada, SSDSL contributes a presentation titled “Experimental Demonstration of Surface Acoustic Wave Mode Conversion Using Piezoelectric Metamaterials”; and a presentation titled “Distributed Pressure Estimation Using a Piezoelectric Array in a Cone Structure for Hypersonic Applications.”
• SSDSL contributes a presentation titled “Envelope Soliton in Locally Resonant Piezoelectric Metamaterials with Nonlinear Shunt Circuits” to APS Meeting, Anaheim.
• SSDSL contributes a conference paper titled “Electrically Small Antenna Leveraging Piezoelectric Resonance in Stacked Layers” to IEEE International Workshop on Antenna Technology (iWAT), Cocoa Beach, FL.
• Prof. Erturk gives an invited lecture titled “Interdisciplinary Applications of Piezoelectric Materials Involving Structural Dynamics, Vibration, Wave Propagation, and Acoustics” at Ferroelectrics and Multiferroics Course, School of Materials Science and Engineering, Georgia Tech, Atlanta, GA.
• Prof. Erturk gives an invited presentation titled “Wave Engineering in Programmable Piezoelectric Metamaterials with Digital Shunts” at MetaMAT Webinar Series.
• Prof. Erturk is elected an Associate Fellow of the American Institute of Aeronautics and Astronautics.
• Nima receives conference level best student presentation award at the Society of Engineering Science Annual Technical Meeting. Congrats!
• Sonali completes an M.S. thesis on a hybrid piezoelectric-servomotor-actuated robotic fish and joins Rivian. Congrats!
• Sai joins IIT Hyderabad as a tenure-track assistant professor. Congrats!
• Chongan joins the University of Maryland – College Park as a postdoctoral researcher. Congrats!
• SSDSL publishes “Envelope Solitons in a Piezoelectric Metamaterial Beam Obeying the Nonlinear Schrödinger Equation” in Journal of the Mechanics and Physics of Solids.
• SSDSL and collaborators publish “Linear and Nonlinear Ultrasonic/Acoustic Characterization of Thermally Sprayed Nickel Coatings” in NDT&E International.
• SSDSL publishes “Experimental and Numerical Investigation of Self-Heating Effects on the Through-Metal Ultrasonic Power Transfer Efficiency” in Ultrasonics.
• SSDSL publishes “Topological Interface Modes in 3D-Printed Triply Periodic Minimal Surface Phononic Crystals” in Materials and Design.
• SSDSL and collaborators publish “Acoustic Demonstration of Virtual Impedance Matching by Transiently Echoless Complex Frequency Waves” in Journal of the Acoustical Society of America.
• SSDSL publishes “High Intensity Focused Ultrasound for High Strain Rate Testing and Soft Composite Delamination” in Ultrasonics.
• SSDSL and collaborators publish “High-Fidelity Analysis and Experiments of a Wireless Sensor Node with a Built-in Supercapacitor Powered by Piezoelectric Vibration Energy Harvesting” in Mechanical Systems and Signal Processing.
• SSDSL and collaborators publish “Broadband Wireless Battery-Free Acoustic Identification Tags for High Data-Rate Underwater Backscatter Communication” in Journal of the Acoustical Society of America.
• SSDSL receives new Sandia National Laboratories support for narrow-band piezoelectric power transduction and up-skin data transduction.

2024

• Prof. Erturk gives a plenary lecture titled “Vibration and Wave Manipulation in Piezoelectric Metamaterials via Digital Programming” at 8th International Conference on Smart and Nano Materials, Sharjah, UAE.
• SSDSL contributes a presentation titled “Resonant Characterization of Hysteretic Nonlinearity in Cranial Sutured Bones” to ASME International Mechanical Engineering Congress and Exposition, Portland, OR.
• SSDSL contributes a presentation titled “Nonlinear Resonant Acoustic Spectroscopy (NRAS) Characterization of Cranial Sutures” to BMES (Biomedical Engineering Society) Annual Meeting, Baltimore, MD.
• At ASME 2024 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Atlanta, GA, Prof. Erturk gives an invited talk titled “Leveraging Metamaterials and Phononic Crystals in Energy Harvesting”; SSDSL contributes a presentation titled “Leveraging Rainbow and Acoustic Black Hole Concepts in Piezoelectric Energy Harvesting from Metamaterials”; SSDSL contributes a presentation titled “Piezoelectric Structures with Nonlinear Synthetic Impedance Shunts, Machine Learning-based Simulations, and Experimental Validations.”
• Prof. Erturk gives an invited talk titled “Elastic and Acoustic Wave Control in Emerging Fields and Interdisciplinary Applications” at ASME 2024 IDETC 36th Biennial Conference on Mechanical Vibration and Noise, Washington, DC.
• SSDSL contributes a presentation titled “Characterization of Cranial Bone Sutures Using Nonlinear Resonant Acoustic Spectroscopy” to 51st Annual Review of Progress in Quantitative Nondestructive Evaluation, Denver, CO.
• At 33rd International Conference on Adaptive Structures and Technologies, Atlanta, GA, SSDSL contributes a presentation titled “Multiphysics Through-Metal Ultrasonic Data Transmission Bridging Electromagnetic and Piezoelectric Methods”; SSDSL contributes a presentation titled “Design of Multi-Stage Detachable Ultrasonic Power Transfer System and the Effect of Self-Heat Generation”; SSDSL and collaborators contribute a presentation titled “Broadband Piezoelectric Acoustic Identification Tag Design and Optimization for Underwater Applications”; SSDSL contributes a presentation titled “Dynamic Pressure Inversion Using a Piezoelectric Sensor Array and Faulty Sensor Detection”; SSDSL contributes a presentation titled “High-Intensity Focused Ultrasound for Adhesion Testing and Delamination of Soft Materials”; SSDSL and collaborators contribute a presentation titled “Vibration Damping Using Analogous Piezoelectric Networks: 10 Years of Research at Cnam and Georgia Tech”; SSDSL contributes a presentation titled “Topological Interface Modes in Triply Periodic Minimal Surface and Programmable Piezoelectric Resonant Metamaterials”; SSDSL contributes a presentation titled “UV-Reprogrammable Hydrogel for Shape Morphing Metamaterial with Tunable Bandgap.”
• Prof. Erturk gives a keynote lecture titled “Enhanced Elastic and Acoustic Energy Harvesting via Piezoelectric Metamaterials and Phononic Structures” at EUROMECH Metamaterials and Architected Materials for Novel Energy Harvesting Solutions, London, UK.
• SSDSL contributes a conference paper titled “Merging Topological Bandgaps in a Programmable Piezoelectric Metamaterial to Realize Multiple Interface Modes” to 31st SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Long Beach, CA.
• SSDSL receives the ASME Best Paper Award in Structures, Structural Dynamics, and Control (for Mustafa’s 2023 paper).
• Prof. Erturk serves as the host and chair of the 33rd International Conference on Adaptive Structures and Technologies in Atlanta.
• H. Patel and J. Chen receive student presentation recognition at ICAST 2024. Congrats!
• An SSDSL article in Applied Physics Letters is selected as a featured article.
• Prof. Erturk gives invited talks at ASME IDETC and ASME SMASIS.
• Prabha joins Apple as a noise and vibration engineer. Congrats!
• Ananya completes his Ph.D. dissertation on underwater acoustic identification tags and joins Apple as an acoustic transducer engineer. Congrats!
• SSDSL publishes “Programmable Hardening and Softening Cubic Inductive Shunts for Piezoelectric Structures: Harmonic Balance Analysis and Experiments” in Journal of Sound and Vibration.
• SSDSL publishes “Experimental Realization of Tunable Exceptional Points in a Resonant non-Hermitian Piezoelectrically Coupled Waveguide” in Applied Physics Letters.
• SSDSL and collaborators publish “Broadening the Frequency Response of a Duffing-type Piezoelectric Shunt by Means of Negative Capacitance” in Journal of Sound and Vibration.
• SSDSL and collaborators publish “Ultrasound-Powered Wireless Underwater Acoustic Identification Tags for Backscatter Communication” in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.
• SSDSL and collaborators publish “Portable Through-Metal Ultrasonic Power Transfer Using a Dry-Coupled Detachable Transmitter” in Ultrasonics.
• SSDSL publishes “Multimodal Vibration Damping of a Three-Dimensional Circular Ring Coupled to Analogous Piezoelectric Networks” in Journal of Sound and Vibration.
• SSDSL publishes “Subwavelength Negative Refraction and Flexural Wave Lens Design via Double-Negative Piezoelectric Metamaterial” in Smart Materials and Structures.
• SSDSL publishes “The Effects of Shear Deformation and Rotary Inertia on the Electrical Analogues of Beams and Plates for Multimodal Piezoelectric Damping” in International Journal of Circuit Theory and Applications.
• SSDSL publishes “Topological Modes, Vibration Attenuation, and Energy Harvesting in Electromechanical Metastructures” in International Journal of Mechanical Sciences.
• SSDSL receives continued Sandia National Laboratories support for the megasonics piezo-antenna, aeroshell-load tracking, and ultrasound-wave dissipation in structured materials.

2023

• At ASME International Mechanical Engineering Congress and Exposition, New Orleans, LA, SSDSL and collaborators contribute a presentation titled “Dry-Contact Multi-Stage Ultrasonic Power Transfer System and Selection of Gasket Material”; SSDSL and collaborators contribute a presentation titled “Effects of High-Intensity Focused Ultrasound on Bonding Characteristics of Laminated Thin Materials”; SSDSL and collaborators contribute a presentation titled “Multiphysics Through-Metal Ultrasonic Data Transmission Bridging Electromagnetic and Piezoelectric Methods.”
• SSDSL and collaborators contribute a conference paper titled “Wearable Active Vibration Sensing for Mid-Activity Knee Health Assessment” to IEEE-EMBS International Conference on Body Sensor Networks – Sensors and Systems for Digital Health, Boston, MA.
• Prof. Erturk gives a keynote lecture titled “Extreme Programmability in Piezoelectric Metamaterials: from Reciprocity Breaking to Exceptional Points” at Society of Engineering Science 60th Annual Technical Meeting, Minneapolis, MN.
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations, Nonlinear Dynamics, and Wave Phenomena: from Energy Harvesting and Bioinspiration to Metamaterials and Ultrasound Delivery” at Graduate Seminar Series, Department of Mechanical Engineering, University of California – Merced.
• SSDSL and collaborators contribute a conference paper titled “Investigation of the Effect of Self-Heating on Through-Metal Ultrasonic Power Transmission Efficiency” to IEEE International Ultrasonics Symposium, Montreal, Canada.
• SSDSL and collaborators contribute a presentation titled “Excitation and Damage Behavior of Adhesively Bonded Thin Films under High-Intensity Focused Ultrasound” to Science of Adhesion Gordon Research Conference, South Hadley, MA.
• Prof. Erturk gives a distinguished lecture titled “Leveraging Vibrations, Nonlinear Dynamics, and Wave Phenomena: from Energy Harvesting and Bioinspiration to Metamaterials and Ultrasound Delivery” at iSmart Distinguished Lecture Series, Harbin Institute of Technology (distinguished lecture – virtual).
• SSDSL contributes a conference paper titled “Programmable Hardening, Softening, and Essentially Nonlinear Synthetic Inductance-based Piezoelectric Shunt Circuits” to 10th ECCOMAS Thematic Conference on Smart Structures and Materials, Patras, Greece.
• SSDSL contributes a conference paper titled “Multimodal Vibration Damping of a Thin Circular Ring Coupled to an Analogous Piezoelectric Network: Numerical Analysis” to 10th ECCOMAS Thematic Conference on Smart Structures and Materials, Patras, Greece.
• At NODYCON 2023 Third International Nonlinear Dynamics Conference, Rome, Italy, SSDSL contributes a presentation titled “Parametric Resonance and Extreme Motions of a Cantilever with a Tip Mass: An Experimental-Theoretical Study”; SSDSL contributes a presentation titled “Digitally Programmable Piezoelectric Metamaterials and Nonlinear Electromechanical Structures with Synthetic Impedance Circuits.”
• At 183rd Meeting of the Acoustical Society of America, Chicago, IL, SSDSL and collaborators contribute a presentation titled “Large-Scale Simulation of High-Intensity Focused Ultrasound with Sierra/SD”; SSDSL and collaborators contribute a presentation titled “Optimizing Wireless Acoustic Energy Harvesting and Communication with Passive Markers Underwater.”
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations, Nonlinear Dynamics, and Wave Phenomena: from Energy Harvesting and Bioinspiration to Metamaterials and Ultrasound Delivery” at Mechanics and Physics of Advanced Materials and Structures Seminar Series, Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology.
• Prof. Erturk gives an invited lecture titled “Wireless Power Delivery and Communication Using Ultrasound for Defense, Industry, and Biomedical Applications” at Denning Technology and Management Program, Georgia Tech, Atlanta, GA.
• At 30th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Long Beach, CA, SSDSL contributes a conference paper titled “Digitally Programmable Nonlinear Energy Sink via Essentially Nonlinear Synthetic Impedance Circuit”; SSDSL contributes a conference paper titled “Acceleration-Waveform-Sending Wireless Sensor Node Powered by a Piezoelectric Vibration Energy Harvester.”
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations, Nonlinear Dynamics, and Wave Phenomena in Emerging Fields and Across Disciplines” at Mechanical Engineering Seminar, University of California – Riverside, CA.
• Prof. Erturk gives a keynote lecture titled “Leveraging Vibration and Wave Phenomena in Dynamical Systems: from Energy Harvesting and Bioinspired Robotics to Metamaterials and Transcranial Ultrasound” at DINAME 2023 International Symposium on Dynamic Problems of Mechanics.
• Prof. Erturk gives an invited seminar titled “Leveraging Vibration and Wave Phenomena in Emerging Fields and Across Disciplines” at Mechanical Engineering Seminar, University of California – Santa Barbara, CA.
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations, Nonlinear Dynamics, and Wave Phenomena in Emerging Fields and Across Disciplines” at Mechanics Colloquia Research Seminar Series, Department of Engineering, Cambridge University, Cambridge, UK.
• Prof. Erturk becomes Editor-in-Chief of Smart Materials and Structures.
• Prof. Erturk is recognized as a Woodruff School Culture Champion.
• Prof. Erturk gives an iSmart Distinguished Lecture hosted by Harbin Institute of Technology.
• Allen and Renan complete their M.S. theses. Congrats!
• Eetu completes his Ph.D. dissertation on human skull dynamics and joins NASA. Congrats!
• Mustafa completes his Ph.D. dissertation on programmable piezoelectric metamaterials and joins King Fahd University of Petroleum and Minerals as an assistant professor. Congrats!
• Obaidullah completes his Ph.D. dissertation on nonlinear synthetic-impedance circuits and joins King Abdulaziz University as an assistant professor. Congrats!
• Alan completes his Ph.D. dissertation on multimodal vibration damping and joins Boeing. Congrats!
• Renan joins MathWorks. Congrats!
• SSDSL publishes “Digital Programming of Reciprocity Breaking in Resonant Piezoelectric Metamaterials” in Physical Review Research.
• SSDSL publishes “Analogous Piezoelectric Network for Multimodal Vibration Attenuation of a Thin Circular Ring” in Smart Materials and Structures.
• SSDSL and collaborators publish “Programmable Moving Defect for Spatiotemporal Wave Localization in Piezoelectric Metamaterials” in Physical Review Applied.
• SSDSL publishes “Nonlinear Phenomena in Magnetic Plucking of Piezoelectric Vibration Energy Harvesters” in Sensors and Actuators A: Physical.
• SSDSL and collaborators publish “System-Level DC-to-DC Analysis and Experiments of Ultrasonic Power Transfer Through Metallic Barriers” in IEEE/ASME Transactions on Mechatronics.
• SSDSL and collaborators publish “Optimizing Transcranial Ultrasound Delivery at Large Incident Angles by Leveraging Cranial Leaky Guided Wave Dispersion” in Ultrasonics.
• SSDSL publishes “Extreme Parametric Resonance Oscillations of a Cantilever: An Exact Theory and Experimental Validation” in Mechanical Systems and Signal Processing.
• Prof. Erturk leads a new Office of Naval Research Multidisciplinary University Research Initiative on Bio-Inspired Material Architectures for Deep Sea applications.
• SSDSL receives Sandia National Laboratories support for piezo-antenna development, ultrasonic flow sensing and pressure identification, and ultrasound-wave dissipation in structured materials.

2022

• Prof. Erturk gives a keynote lecture titled “Leveraging Vibration and Wave Phenomena in Dynamical Systems: from Energy Harvesting and Bioinspired Robotics to Metamaterials and Transcranial Ultrasound” at 12th International Conference on Acoustics and Vibration (keynote – virtual).
• SSDSL contributes a presentation titled “Dynamical Behavior of Frequency up-Converted Piezoelectric Energy Harvesters at Different Velocities of Magnetic Interaction” to PowerMEMS2022, Salt Lake City, UT.
• At 183rd Meeting of the Acoustical Society of America, Nashville, TN, SSDSL contributes an invited talk titled “Digitally Tunable Non-Reciprocal Wave Propagation Using Piezoelectric Metamaterials with Synthetic Impedance Circuits”; SSDSL contributes a presentation titled “3D-Printed Gradient-Index Phononic Crystal Lens for Transcranial Focused Ultrasound”; SSDSL and collaborators contribute a presentation titled “Wireless Acoustic Tag Design Using Acoustic Energy Harvesting and Backscatter Communication as an AUV Navigational Aid.”
• Prof. Erturk gives an invited talk titled “Programmable Piezoelectric Metamaterials with Synthetic Impedance Circuits: Bandgap Tuning, Rainbow Effect, Black Hole, Nonreciprocity, and Nonlinearity” at 32nd International Conference on Adaptive Structures and Technologies, Suzhou, China.
• Prof. Erturk gives a plenary lecture titled “Leveraging Vibration and Wave Phenomena: from Energy Harvesting and Bioinspired Robotics to Metamaterials and Transcranial Ultrasound” at Argentine Congress of Computational Mechanics, Bahía Blanca, Argentina.
• SSDSL contributes a presentation titled “Hardening and Softening Duffing-type Programmable Piezoelectric Shunts via Synthetic Impedance Circuits” to International Workshop on Piezoelectric Materials and Applications in Actuators, Japan (virtual).
• SSDSL and collaborators contribute a conference paper titled “Identification of Critical Angles in Shear Mode Conversion-Based Transcranial Ultrasound via Leaky Guided Wave Analysis” to IEEE International Ultrasonics Symposium, Venice, Italy.
• Prof. Erturk gives an invited seminar titled “Programmable Piezoelectric Metamaterials and Metastructures” at Mechanics and Physics of Advanced Materials and Structures Seminar Series, School of Mechanical Engineering, Tianjin University.
• SSDSL contributes a presentation titled “Experimentally Validated Geometrically Exact Model for Nonlinear Dynamic Analysis of Cantilevers Undergoing Extreme Motions” to 10th European Nonlinear Dynamics Conference, Lyon, France.
• At 19th U.S. National Congress on Theoretical and Applied Mechanics, Austin, TX, SSDSL contributes a presentation titled “Computational Modeling and Non-Contact Vibroacoustic Experiments for Elastic Parameter and Damping Identification of Dry Cranial Bones”; SSDSL and collaborators contribute a presentation titled “Experimental and Numerical Ultrasound Transmission Analysis in Temporal and Parietal Bones at Large Incidence Angles”; SSDSL and collaborators contribute a presentation titled “Flow-induced Vibrations of Closely Packed Flexible Flags.”
• At 29th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Long Beach, CA, SSDSL contributes a conference paper titled “Programmable Spatial and Spatiotemporal Modulation of Piezoelectric Metamaterials with Synthetic Impedance Circuits”; SSDSL contributes a conference paper titled “Piezoelectric Transducer Design and Impedance Tuning for Concurrent Ultrasonic Power and Data Transfer”; SSDSL contributes a conference paper titled “Ultrasonic Testing of Thick and Thin Inconel 625 Alloys Manufactured by Laser Powder Bed Fusion”; SSDSL contributes a conference paper titled “Nonlinear Synthetic Impedance Circuits for Piezoelectric Structures.”
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations and Waves Across Geometric Scales, Disciplines, and Applications” at Nano@Tech Seminar Series, Institute for Electronics and Nanotechnology.
• Prof. Erturk is named the Carl Ring Family Chair in the Woodruff School of Mechanical Engineering.
• Prof. Erturk and collaborators receive the Philip E. Doak Award from the Journal of Sound and Vibration (for Chris’ 2017 paper).
• SSDSL hosts high-school teachers and students through Georgia Tech CEISMC’s GIFT program.
• Chris joins Stevens Institute of Technology as a tenure-track assistant professor. Congrats!
• Ahmed joins MIT as a postdoctoral researcher. Congrats!
• SSDSL publishes “Spatially Programmable Wave Compression and Signal Enhancement in a Piezoelectric Metamaterial Waveguide” in Physical Review B.
• SSDSL publishes “Duffing-type Digitally Programmable Nonlinear Synthetic Inductance for Piezoelectric Structures” in Smart Materials and Structures.
• SSDSL publishes “Photo-responsive Hydrogel-based Re-programmable Metamaterials” in Scientific Reports.
• SSDSL and collaborators publish “Flapping Dynamics of an Inverted Flag Behind a Cylinder” in Bioinspiration and Biomimetics.
• SSDSL publishes “Harnessing Rainbow Trapping via Hybrid Electromechanical Metastructures for Enhanced Energy Harvesting and Vibration Attenuation” in Journal of Applied Physics.
• SSDSL publishes “Ultrasonic Testing of Thick and Thin Inconel 625 Alloys Manufactured by Laser Powder Bed Fusion” in Ultrasonics.
• SSDSL and collaborators publish “Hydrodynamic Performance of Oscillating Elastic Propulsors with Tapered Thickness” in Journal of Fluid Mechanics.
• SSDSL publishes “Piezoelectric Transducer Design for Simultaneous Ultrasonic Power Transfer and Backscatter Communication” in Smart Materials and Structures.
• SSDSL publishes “Experimentally Validated Geometrically Exact Model for Extreme Nonlinear Motions of Cantilevers” in Nonlinear Dynamics.
• SSDSL and collaborators publish “Aspect Ratio-Dependent Hysteresis Response of a Heavy Inverted Flag” in Journal of Fluid Mechanics.
• SSDSL publishes “Programmable Rainbow Trapping and Bandgap Enhancement via Spatial Group Velocity Tailoring in Elastic Metamaterials” in Physical Review Applied.
• SSDSL and collaborators publish “Machined Phononic Crystals to Block High-Order Lamb Waves and Crosstalk in Through-Metal Ultrasonic Communication Systems” in Applied Physics Letters.
• SSDSL publishes “Multistable Vibration Energy Harvesters: Principle, Progress, and Perspectives” in Journal of Sound and Vibration.
• SSDSL publishes “Concurrent Vibration Attenuation and Low-power Electricity Generation in a Locally Resonant Metastructure” in Journal of Intelligent Material Systems and Structures.
• SSDSL receives new and continuing Sandia National Laboratories support for focused ultrasonic testing, multistage ultrasonic power and data transfer, mechanical-wand development, and aeroshell load and pressure mapping.

2021

• SSDSL contributes a presentation titled “Programmable Group Velocity Profile Tailoring in a Piezoelectric Rainbow Metamaterial” to 19th U.S. National Congress on Theoretical and Applied Mechanics, Austin, TX.
• SSDSL contributes a presentation titled “Audio-Frequency Characterization of Cranial Sutures via Non-Contact Vibration Experiments” to 181st Meeting of the Acoustical Society of America, Seattle, WA.
• At 181st Meeting of the Acoustical Society of America, SSDSL and collaborators contribute a presentation titled “Investigation of Transcranial Ultrasound Delivery via Lamb Wave Mode Conversion Leveraging a Transducer Pair”; SSDSL contributes a presentation titled “Double Phononic Crystal Lens-based Enhancement of Underwater Power Transfer.”
• SSDSL contributes a presentation titled “Harnessing Acoustic Black Hole Effect in Elastic Propulsors to Achieve Efficient Undulatory Locomotion” to American Physical Society Fall Meeting, Phenix, AZ.
• Prof. Erturk gives an invited seminar titled “Piezoelectric Energy Harvesting Leveraging Concepts from Nonlinear Dynamics, Metamaterials, and Phononic Crystals” at Institute of Applied Mechanics Friedrich-Alexander-Universität Erlangen-Nürnberg.
• At ASME International Mechanical Engineering Congress and Exposition (virtual conference), SSDSL contributes a conference paper titled “Leveraging Vibrations and Guided Waves in a Human Skull”; SSDSL contributes a presentation titled “Programmable Nonlinear Vibration Absorber Using Synthetic Impedance Circuits.”
• Prof. Erturk gives an invited talk titled “Energy Harvesting from Vibrations, Elastic/Acoustic Waves, and Fluid-Structure Interactions” at French American Innovation Days (FAID 2021).
• At IEEE International Ultrasonics Symposium (virtual symposium), SSDSL and collaborators contribute a conference paper titled “Experimental Validation of Crosstalk Minimization in Metallic Barriers with Simultaneous Ultrasonic Power and Data Transfer”; SSDSL and collaborators contribute a conference paper titled “Wideband Acoustic Data Transmission Through Staircase Piezoelectric Transducers”; SSDSL contributes a conference paper titled “Radiation Characterization of Leaky Guided Waves in Monolithic and Sutured Cranial Bones”; SSDSL and collaborators contribute a conference paper titled “Mechanical Characterization of Cranial Sutures Using Guided Ultrasonic Waves”; SSDSL and collaborators contribute a conference paper titled “Detachable Dry-Coupled Ultrasonic Power Transfer Through Metallic Enclosures”; SSDSL and collaborators contribute a conference paper titled “Bandwidth Enhancement Strategies for Acoustic Data Transmission by Piezoelectric Transduction”; SSDSL and collaborators contribute a conference paper titled “Computational Optimization of Mechanical Energy Transduction (COMET) Toolkit.”
• SSDSL contributes a presentation titled “Stimuli-responsive Hydrogel-based Metamaterials with Tunable Bandgaps” to ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (virtual conference).
• Prof. Erturk gives a keynote lecture titled “Digital Programming, Energy Harvesting, and Multifunctionality in Piezoelectric Metamaterials” at 3rd International Conference on Vibration and Energy Harvesting Applications, Xi’an, China (keynote – virtual).
• At 180th Meeting of the Acoustical Society of America (virtual conference), SSDSL contributes a presentation titled “Transcranial Radiation Characteristics of Leaky Lamb Waves in Different Regions of a Human Skull”; SSDSL and collaborators contribute a presentation titled “Experimental and Numerical Analysis of Lamb Wave Transmission Through the Coronal Suture of a Dry Human Skull.”
• Prof. Erturk gives an invited seminar titled “Leveraging Vibrations and Waves: from Smart/Meta-Structures to Human Skull-Brain System” at Department of Mechanical Engineering Seminar, Stevens Institute of Technology, Hoboken, NJ.
• Prof. Erturk gives a keynote lecture titled “Piezoelectric Adventures: From Energy Harvesting and Bioinspired Robotics to Programmable Metamaterials and Wireless Data/Power Transfer” at 28th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring (keynote – virtual).
• At 28th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring (virtual conference), SSDSL contributes a presentation titled “Programmable Piezoelectric Acoustic Black Hole for Wavelength Control and Enhanced Sensing”; SSDSL contributes a presentation titled “Rainbow Trapping of Elastic Waves in a Programmable Metamaterial Beam”; SSDSL contributes a presentation titled “Experimental and Numerical Investigation of Piezoelectric Energy Harvesting on a Locally Resonant Metastructure.”
• Prof. Erturk gives an invited seminar titled “Piezoelectric Adventures: From Nonlinear Energy Harvesting and Bioinspired Actuation to Programmable Metamaterials and Wireless Power Transfer” at J. Wike Walker ’66 Department of Mechanical Engineering Seminar, Texas A&M University, College Station, TX.
• Prof. Erturk gives a keynote lecture titled “Dynamics of Programmable and Multifunctional Piezoelectric Metamaterials and Metastructures” at DINAME 2021 International Symposium on Dynamic Problems of Mechanics, Webinar (keynote – virtual).
• Prof. Erturk is named an Invited Professor in the Department of Aerospace Engineering at KAIST.
• SSDSL research on the skull-brain system is featured in the Georgia Tech President’s Annual Report and multiple research and science-news outlets.
• SSDSL research on a multifunctional trout-like piezoelectric robotic fish receives international media coverage.
• Mohid and Herit complete their M.S. theses. Congrats!
• Ahmed completes his Ph.D. dissertation and later joins the University of Cincinnati as an assistant professor. Congrats!
• Herit joins NASA JPL. Congrats!
• SSDSL publishes “Vibration-based Elastic Parameter Identification of the Diploe and Cortical Tables in Dry Cranial Bones” in Journal of the Mechanical Behavior of Biomedical Materials.
• SSDSL and collaborators publish “Phased Array Ultrasonic Testing of Inconel 625 Produced by Selective Laser Melting” in ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems.
• SSDSL publishes “Trout-like Multifunctional Piezoelectric Robotic Fish and Energy Harvester” in Bioinspiration and Biomimetics.
• SSDSL and collaborators publish “Effect of Actuation Mode on Hydrodynamics of Elastic Plates Oscillating at Resonance” in Journal of Fluid Mechanics.
• SSDSL publishes “Experimental and Computational Investigation of Guided Waves in a Human Skull” in Ultrasound in Medicine and Biology.
• SSDSL and collaborators publish “Experimental Identification of High Order Lamb Waves and Estimation of the Mechanical Properties of a Dry Human Skull” in Ultrasonics.
• SSDSL publishes “Three-Dimensional Nonlinear Extreme Vibrations of Cantilevers Based on a Geometrically Exact Model” in Journal of Sound and Vibration.
• SSDSL publishes “Sound Energy Harvesting by Leveraging a 3D-Printed Phononic Crystal Lens” in Applied Physics Letters.
• SSDSL and collaborators publish “Radiation Characteristics of Cranial Leaky Lamb Waves” in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.
• SSDSL and collaborators publish “Vibration Stimulation as a Non-Invasive Approach to Monitor the Severity of Meniscus Tears” in IEEE Transactions on Neural Systems and Rehabilitation Engineering.
• SSDSL publishes “Graded Multifunctional Piezoelectric Metastructures for Wideband Vibration Attenuation and Energy Harvesting” in Smart Materials and Structures.
• SSDSL and collaborators publish “Experimental Observation of Temporal Pumping in Electromechanical Waveguides” in Physical Review Letters.
• SSDSL receives continued Sandia National Laboratories support for ultrasonic power and data transfer and pressure-identification technologies.

2020

• Prof. Erturk gives an invited seminar titled “Leveraging Nonlinear Dynamics in Mechanical and Electromechanical Structures” at School of Physics – Center for Nonlinear Science Seminar Series, Georgia Institute of Technology, Atlanta, GA.
• Prof. Erturk gives an invited talk titled “Elastic and Acoustic Wave Energy Harvesting Using Phononic Crystals and Metamaterials” at DIALOG Innovations in Practice / Energy Harvesting Workshop, Lublin, Poland.
• SSDSL and collaborators contribute a presentation titled “Finite Element Analysis of Cranial Leaky Guided Waves in a Parietal Bone” to Society of Engineering Science Virtual Conference.
• At 13th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems (virtual conference), SSDSL contributes a conference paper titled “Enhanced Sound Energy Harvesting by Leveraging Gradient Index Phononic Crystals”; SSDSL contributes a conference paper titled “Characterization of a Multifunctional Bioinspired Piezoelectric Swimmer and Energy Harvester”; SSDSL contributes a presentation titled “Elastic Wave Manipulation Using Programmable Piezoelectric Metamaterials.”
• SSDSL contributes a presentation titled “Dynamics of Passive and Active Metamaterial Concepts for Elastic Wave Guiding and Attenuation” to Society for Experimental Mechanics 14th International Congress (virtual conference).
• At IEEE International Ultrasonics Symposium (virtual symposium), SSDSL and collaborators contribute a conference paper titled “Ultrasonic Communication Through a Metallic Barrier: Transmission Modeling and Crosstalk Minimization”; SSDSL and collaborators contribute a conference paper titled “Matrix Pencil Estimation of Guided Waves Dispersion in a Human Skull.”
• SSDSL and collaborators contribute a presentation titled “Ultrasonic Inspection of Additive Manufactured Components” to 47th Annual Review of Progress in Quantitative Nondestructive Evaluation (virtual conference).
• Prof. Erturk gives an invited seminar titled “Bio-inspired Actuation and Aquatic Locomotion Using Piezoelectric Materials” at Interdisciplinary Seminar Series on Biolocomotion, Aix-Marseille Université and Universität Rostock.
• At 38th International Modal Analysis Conference, Houston, Houston, TX, SSDSL contributes a presentation titled “Nonlinear Metastructures with Bistable Attachments for Wideband Vibration Attenuation”; SSDSL contributes a presentation titled “Interaction of Geometric and Material Nonlinearities in Resonant Dynamics of Flexible Piezoelectric Structures”; SSDSL contributes a presentation titled “Characterization of Lamb Wave Propagation in Human Skull via Scanning LDV”; SSDSL contributes a presentation titled “Modal Analysis of the Human Skull and Skull-Brain System.”
• SSDSL contributes a presentation titled “Modal Analysis of Mechanical and Electromechanical Metastructures for Low-Frequency Bandgap Formation” to 38th International Modal Analysis Conference, Houston, TX.
• Prof. Erturk is elected a Fellow of SPIE.
• Prof. Erturk receives the James W. Dally Young Investigator Award from the Society for Experimental Mechanics.
• Chris receives the Georgia Tech Sigma Xi Best Ph.D. Dissertation Award. Congrats!
• Yiwei completes her Ph.D. dissertation and joins Exponent. Congrats!
• SSDSL and collaborators publish “Experimentally Validated Broadband Self-Collimation of Elastic Waves” in International Journal of Mechanical Sciences.
• SSDSL publishes “Bistable Attachments for Wideband Nonlinear Vibration Attenuation in a Metamaterial Beam” in Nonlinear Dynamics.
• SSDSL and collaborators publish “Nonlinear Piezoelectric Plate Framework for Aeroelastic Energy Harvesting and Actuation Applications” in Smart Materials and Structures.
• SSDSL publishes “Nonreciprocal Piezoelectric Metamaterial Framework and Circuit Strategies” in Physical Review B.
• SSDSL and collaborators publish “Characterization of Hydrogel Structural Damping” in Extreme Mechanics Letters.
• SSDSL publishes “3D-Printed Gradient-Index Phononic Crystal Lens for Underwater Acoustic Wave Focusing” in Physical Review Applied.
• SSDSL and collaborators publish “Vibration Characterization of the Human Knee Joint in Audible Frequencies” in Sensors.
• SSDSL publishes “Digitally Programmable Resonant Elastic Metamaterials” in Physical Review Applied.
• SSDSL and collaborators publish “Vibration Sensing Systems Based on Poly(Vinylidene Fluoride) and Microwave-Assisted Synthesized ZnO Star-Like Particles with Controllable Structural and Physical Properties” in Nanomaterials.
• SSDSL publishes “Aspect Ratio-Dependent Dynamics of Piezoelectric Transducers in Wireless Acoustic Power Transfer” in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.
• SSDSL and collaborators publish “Topological Edge States in Quasiperiodic Locally Resonant Metastructures” in Physical Review Applied.
• SSDSL publishes “An Analytical Framework for Bandgap Formation in Locally Resonant Piezoelectric Metamaterial Plates” in International Journal of Solids and Structures.
• SSDSL publishes “Mechanically and Electrically Nonlinear Non-ideal Piezoelectric Energy Harvesting Framework with Experimental Validations” in Nonlinear Dynamics.
• SSDSL publishes “Programmable Mode Conversion and Bandgap Formation for Surface Acoustics Waves Using Piezoelectric Metamaterials” in Applied Physics Letters.
• SSDSL receives Sandia National Laboratories support for power and data transfer through metallic barriers.

2019

• SSDSL contributes an invited talk titled “Controlling Underwater Sound Propagation Using 3D-Printed Phononic Crystals” to 178th Meeting of the Acoustical Society of America, San Diego, CA.
• At Society of Engineering Science 56th Annual Technical Meeting, St. Louis, MO, SSDSL contributes a keynote lecture titled “Lamb Wave Propagation in Human Skull: Analysis of Leaky Modes and Equivalent Properties”; SSDSL and collaborators contribute a presentation titled “Nontrivial Topological Bandgaps and Edge-Localized States in Quasiperiodic Locally Resonant Metastructures”; SSDSL contributes a presentation titled “An Investigation of Vibration and Vibroacoustics of the Human Skull-Brain System.”
• Prof. Erturk gives a plenary lecture titled “Programmable Piezoelectric Metamaterials: From Tunable Bandgaps to Nonreciprocal Behavior” at International Workshop on Piezoelectric Materials and Applications in Actuators, Lyon, France.
• Prof. Erturk gives an invited lecture titled “Next-Generation Piezoelectric Energy Harvesting: From Nonlinearities and Metamaterial Concepts to Multifunctionality” at ENHANCE Workshop (EU-Sponsored), Lyon, France.
• At ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, Louisville, KY, SSDSL contributes a presentation titled “An Electromechanical Framework for Non-reciprocal Wave Propagation in Piezoelectric Metamaterials with Synthetic Impedance Shunts.”; SSDSL contributes a presentation titled “Geometrically Nonlinear Flexoelectric and Piezoelectric-Flexoelectric Cantilever Modeling and Analysis for Energy Harvesting..”
• SSDSL and collaborators contribute a presentation titled “Non-trivial Bandgaps And Edge-localized Modes In Quasiperiodic Locally Resonant Metastructures” to ASME 2019 IDETC 31st Biennial Conference on Mechanical Vibration and Noise, Anaheim, CA.
• Prof. Erturk gives an invited presentation titled “Dynamics of Next-Generation Smart/Meta Structures: Energy Harvesting, Bio-Inspiration, & Vibration Mitigation” at Department of Mechanical Engineering, Indian Institute of Technology-Kanpur, Kanpur, India (institute lecture).
• Prof. Erturk gives an invited lecture titled “Lectures on Energy Harvesting and Metamaterials” at Department of Mechanical Engineering, Indian Institute of Technology-Kanpur, Kanpur, India.
• At Phononics 2019: 5th International Conference on Phononic Crystals/Metamaterials, Phonon Transport, and Topological Phononics, Tuscon, AZ, SSDSL contributes a presentation titled “Surface Acoustic Wave Manipulation Using Piezoelectric Metamaterials”; SSDSL and collaborators contribute a presentation titled “Topological Edge Modes in Quasiperiodic Locally Resonant Metastructures”; SSDSL contributes a presentation titled “Gradient Index Phononic Crystals for Acoustic Power Transfer Applications.”
• SSDSL and collaborators contribute a presentation titled “Topological Edge Modes in Quasiperiodic Locally Resonant Metastructures” to AmeriMech Symposium: Non-reciprocal and Topological Wave Phenomena in Solids and Fluids, Columbia, MO.
• SSDSL contributes a presentation titled “Metamaterial Concepts for Low-Frequency Elastic Wave Focusing” to 16th Pan-American Congress of Applied Mechanics, Ann Arbor, MI.
• SSDSL contributes a presentation titled “Leveraging Nonlinear Dynamics and Chaos in Smart Structures.” to 5th International Interdisciplinary Chaos Symposium: Chaos and Complex Systems, Antalya, Turkey.
• At 26th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Denver, CO, SSDSL contributes a conference paper titled “Characterization of a Bio-Inspired Piezoelectric Swimmer in a Quiescent Water and Under Imposed Flow”; SSDSL contributes a conference paper titled “Comparison of Various Models for Piezoelectric Receivers in Wireless Acoustic Power Transfer”; SSDSL contributes a conference paper titled “An Analytical Framework for Kirchhoff Plate-Type Locally Resonant Piezoelectric Metastructures”; SSDSL contributes a conference paper titled “Aspect Ratio Effects in Wind Energy Harvesting Using Piezoelectric Inverted Flags”; SSDSL contributes a conference paper titled “Nonlinearities in Resonant Dynamics of Piezoelectric Macro-Fiber Composite Cantilevers.”
• Prof. Erturk is promoted to Professor and named the Woodruff Professor of Mechanical Engineering.
• Prof. Erturk is selected to receive the James W. Dally Young Investigator Award.
• SSDSL gives invited talks at the Society of Engineering Science Annual Technical Meeting and the Acoustical Society of America Fall Meeting.
• Chris and Adriane complete their Ph.D. dissertations. Congrats!
• Adriane receives an NRC Postdoctoral Research Associateship at the Air Force Research Laboratory. Congrats!
• Yiwei receives third place in the Phononics Student Presentation Competition. Congrats!
• SSDSL publishes “3D-Printed Phononic Crystal Lens for Elastic Wave Focusing and Energy Harvesting” in Additive Manufacturing.
• SSDSL publishes “Tunable Elastic Metamaterials Using Rotatable Coupled Dual-Beam Resonators” in Journal of Applied Physics.
• SSDSL publishes “Dramatic Bandwidth Enhancement in Nonlinear Metastructures via Bistable Attachments” in Applied Physics Letters.
• SSDSL and collaborators publish “Time-Periodic Stiffness Modulation in Elastic Metamaterials for Selective Wave Filtering: Theory and Experimental Investigations” in Physical Review Letters.
• SSDSL publishes “Vibration Attenuation in a Nonlinear Flexible Structure via Nonlinear Switching Circuits and Energy Harvesting Implications” in Journal of Intelligent Material Systems and Structures.
• SSDSL receives an NSF LEAP-HI award for research coupling skull-brain vibroacoustics and ultrasound toward enhanced imaging, diagnosis, and therapy.
• SSDSL receives an industrial research award for nondestructive ultrasonic testing of additively manufactured aerospace components.

2018

• Prof. Erturk gives an invited lecture titled “Piezoelectric Energy Harvesting: Fundamentals, Nonlinearities, and Metamaterial Concepts” at PowerMEMS2018 School, Daytona Beach, FL.
• SSDSL contributes a presentation titled “Biomimetic Underwater Propulsion with Flexible Plate Actuators” to 12th European Fluid Mechanics Conference, Vienna, Austria.
• SSDSL and collaborators contribute a conference paper titled “Selective Wave Filtering in Time-Modulated Elastic Metamaterials” to ASME 2018 IDETC 30th Biennial Conference on Mechanical Vibration and Noise, Quebec, Canada (ASME TCVS Best Student Paper Award – 2nd place).
• At ASME 2018 IDETC 30th Biennial Conference on Mechanical Vibration and Noise, Quebec, Canada, SSDSL and collaborators contribute a presentation titled “Amplitude-Dependent Broadband Vibration Attenuation via Bistable Resonators”; SSDSL contributes a presentation titled “An Experimentally Validated Piezoelectric Nonlinear Energy Sink for Wideband Vibration Attenuation.”
• Prof. Erturk gives an invited seminar titled “Elastic Wave Energy Harvesting Concepts Leveraging Phononic Crystals” at School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, China.
• Prof. Erturk gives an invited seminar titled “Locally Resonant Mechanical and Electromechanical Metastructures for Vibration Attenuation” at School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, China.
• Prof. Erturk gives a keynote lecture titled “Piezoelectric Energy Harvesting Concepts: From Nonlinearities to Phononic Crystals” at International Energy Harvesting Workshop-China, Xi’an, China.
• Prof. Erturk gives an invited talk titled “Toward Active Piezoelectric Metastructures for Programmable Tasks and Information Processing” at ARO Workshop on Metastructures, Atlanta, GA.
• Prof. Erturk gives an invited seminar titled “Leveraging Phononic Crystals and Metamaterials for Enhanced Energy Harvesting and Vibration Attenuation” at College of Engineering, Florida State University, Tallahassee, FL.
• Prof. Erturk gives an invited seminar titled “Phononic Crystals and Metamaterials for Enhanced Energy Harvesting and Vibration Attenuation” at Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.
• At 25th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Denver, CO, SSDSL contributes a conference paper titled “Dispersion Tailoring in Varying-Inductance Piezoelectric Metamaterials”; SSDSL contributes a conference paper titled “Varying Cross-Section and Axial Strain-Gradient Effects in Flexoelectric Cantilevers at Submicron Thickness Levels”; SSDSL contributes a conference paper titled “Locally Resonant Metamaterials with Shape-Memory Alloy Springs.”
• At 25th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Denver, CO, SSDSL contributes a conference paper titled “On the Coupling of Nonlinear Macro-Fiber Composite Piezoelectric Cantilever Dynamics with Hydrodynamic Loads”; SSDSL contributes a conference paper titled “Effects of a Piezoelectric Based Nonlinear Energy Sink on the Behavior of an Electromechanically Coupled Beam.”
• Prof. Erturk is elected a Senior Member of SPIE and named a Hesburgh Award Teaching Fellow.
• Yiwei receives second place in the ASME Technical Committee on Vibration and Sound Student Paper Competition. Congrats!
• Ellen receives the Georgia Tech Sigma Xi Best Ph.D. Dissertation Award. Congrats!
• Serife joins the University of Michigan as a tenure-track assistant professor. Congrats!
• Ellen joins Apple as a noise and vibration engineer. Congrats!
• Bharat completes an M.S. thesis and joins Tesla. Congrats!
• Prof. Erturk begins serving as an Invited Adjunct Professor at Politecnico di Milano.
• SSDSL publishes “Tunable Metamaterial Beam with Shape Memory Alloy Resonators: Theory and Experiment” in Applied Physics Letters.
• SSDSL publishes “Design and Analysis of Piezoelectric Metamaterial Beams with Synthetic Impedance Shunt Circuits” in IEEE/ASME Transactions on Mechatronics.
• SSDSL publishes “An Experimentally Validated Piezoelectric Nonlinear Energy Sink for Wideband Vibration Attenuation” in Journal of Sound and Vibration.
• SSDSL publishes “Adaptive Locally Resonant Metamaterials Leveraging Shape Memory Alloys” in Journal of Applied Physics.
• SSDSL publishes “Combined Piezoelectric and Flexoelectric Effects in Resonant Dynamics of Nanocantilevers” in Journal of Intelligent Materials Systems and Structures.
• SSDSL publishes “On the Electrode Segmentation for Piezoelectric Energy Harvesting from Nonlinear Limit Cycle Oscillations in Axial Flow” in Journal of Fluids and Structures.
• SSDSL publishes “Merging Mechanical and Electromechanical Bandgaps in Locally Resonant Metamaterials and Metastructures” in Journal of the Mechanics and Physics of Solids.
• SSDSL and collaborators publish “Equivalent Electrical Circuit Framework for Nonlinear and High Quality Factor Piezoelectric Structures” in Mechatronics.
• SSDSL publishes “Resonant Nonlinearities of Macro-Fiber Composite Cantilevers with Interdigitated Electrodes in Energy Harvesting” in Nonlinear Dynamics.
• SSDSL publishes “Analysis of Multifunctional Piezoelectric Metastructures for Low-Frequency Bandgap Formation and Energy Harvesting” in Journal of Physics D: Applied Physics.
• SSDSL publishes “Performance Comparison of Soft and Hard Piezoelectric Ceramics and Single Crystals for Random Vibration Energy Harvesting” in Energy Technology.
• SSDSL publishes “Nonlinear Elastodynamics of Piezoelectric Macro-Fiber Composites with Interdigitated Electrodes for Resonant Actuation” in Composite Structures.
• SSDSL publishes “An Experimentally Validated Model for Geometrically Nonlinear Plucking-based Frequency-up Conversion in Energy Harvesting” in Smart Materials and Structures.
• SSDSL and collaborators receive an NSF LEAP-HI award to investigate coupled skull-brain vibroacoustics and ultrasound for enhanced therapy and diagnosis.

2017

• At 10th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Snowbird, UT, SSDSL contributes a conference paper titled “Dynamics of Hybrid Mechanical-Electromechanical Locally Resonant Metastructures”; SSDSL contributes a conference paper titled “Resonant Nonlinearities of Macro-Fiber Composite Cantilevers in Energy Harvesting”; SSDSL contributes a conference paper titled “Multifunctional Energy Harvesting Locally Resonant Metastructures”; SSDSL contributes a conference paper titled “Nonlinear Structural Dynamics of Macro-Fiber Composite Cantilevers for Resonant Actuation”; SSDSL contributes a conference paper titled “Low-Frequency Elastic Wave Focusing and Harvesting via Locally Resonant Metamaterials.”
• SSDSL contributes a conference paper titled “On the Origin of the Nonclassical Softening Nonlinearity in MEMS/NEMS Cantilevers” to ASME 2017 IDETC 29th Biennial Conference on Mechanical Vibration and Noise, Cleveland, OH (ASME TCVS Best Student Paper Award – 1st place).
• Prof. Erturk gives a keynote lecture titled “Metamaterial Concepts for Elastic Wave Focusing and Energy Harvesting” at ASME 2017 IDETC 29th Biennial Conference on Mechanical Vibration and Noise, Cleveland, OH (keynote – ASME C.D. Mote Jr. Early Career Award lecture).
• At ASME 2017 IDETC 29th Biennial Conference on Mechanical Vibration and Noise, Cleveland, OH, SSDSL contributes a presentation titled “Bandgap Estimation in Locally Resonant Mechanical and Electromechanical Metastructures”; SSDSL and collaborators contribute a presentation titled “Broadband Attenuation Introduced by Bistable Local Resonators.”
• SSDSL contributes a conference paper titled “Merging Mechanical and Electromechanical Locally Resonant Bandgaps in Metamaterials” to 8th ECCOMAS Thematic Conference on Smart Structures and Materials, Madrid, Spain.
• Prof. Erturk gives an invited talk titled “Tailoring Dispersion Characteristics in Next-Generation Meta-Structures” at SIAM Dynamical Systems Conference, Snowbird, UT.
• SSDSL contributes a conference paper titled “Modeling and Characterization of a Curved Piezoelectric Energy Harvester for Smart Paver Tiles” to 7th International Conference on Sustainable Energy Information Technology, Madeira, Portugal.
• Prof. Erturk gives a keynote lecture titled “Metamaterial Concepts for Elastic Wave Focusing and Energy Harvesting” at 2nd Workshop on Probabilistic Prognostics and Health Management of Energy Systems, Lubbock, TX.
• Prof. Erturk gives an invited talk titled “Metamaterial-Enhanced Elastic Wave Energy Harvesting Concepts” at 2017 Joint IEEE ISAF-IWATMD-PFM Conference, Atlanta, GA.
• At 24th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Portland, OR, SSDSL contributes a conference paper titled “3D-Printed Lens for Structure-Borne Wave Focusing and Energy Harvesting”; SSDSL contributes a conference paper titled “Size Effects in Piezoelectric Cantilevers at Submicron Thickness Levels due to Flexoelectricity”; SSDSL contributes a conference paper titled “Luneburg Lens for Omnidirectional Structure-borne Wave Focusing and Energy Harvesting”; SSDSL contributes a conference paper titled “Piezoelectric Metamaterials with Synthetic Impedance Shunts”; SSDSL and collaborators contribute a conference paper titled “Energy Harvesting from Acoustic Fields for Self-Powered Sensors in Pumped Fluid Systems”; SSDSL contributes a conference paper titled “Toward Structurally-Integrated Locally Resonant Metamaterials for Vibration Attenuation”; SSDSL contributes a conference paper titled “Evaluation of Human-Scale Motion Energy Harvesting for Wearable Electronics.”
• SSDSL contributes an invited lecture titled “Dynamics of Next Generation Smart- and Meta-Structures” to Mathematics and Applications Portal – Dynamics Theme, School of Mathematics, Georgia Institute of Technology, Atlanta, GA.
• Prof. Erturk is elected a Fellow of ASME.
• Prof. Erturk receives the ASME C.D. Mote Jr. Early Career Award.
• An SSDSL article receives the ASME Energy Harvesting Best Paper Award (for Serife’s 2016 paper).
• An SSDSL article in Smart Materials and Structures is selected as a featured article.
• Prof. Erturk gives keynote lectures at ASME IDETC and the Workshop on Probabilistic Prognostics and Health Management of Energy Systems.
• David receives first place in the ASME Technical Committee on Vibration and Sound Student Paper Competition. Congrats!
• Serife and Ellen complete their Ph.D. dissertations. Congrats!
• Prof. Erturk is named a Woodruff Faculty Fellow and receives the Georgia Tech Class of 1940 Course Survey Teaching Effectiveness Award.
• SSDSL publishes “Structurally-Embedded Reflectors and Mirrors for Elastic Wave Focusing and Energy Harvesting” in Journal of Applied Physics.
• SSDSL publishes “A General Theory for Bandgap Estimation in Locally Resonant Metastructures” in Journal of Sound and Vibration.
• SSDSL publishes “Phononic Crystal Luneburg Lens for Omnidirectional Elastic Wave Focusing and Energy Harvesting” in Applied Physics Letters.
• SSDSL and collaborators publish “On the Efficiency of Piezoelectric Energy Harvesters” in Extreme Mechanics Letters.
• SSDSL publishes “Self-Bending Elastic Waves and Obstacle Circumventing in Wireless Power Transfer” in Applied Physics Letters.
• SSDSL publishes “An Investigation of Electroelastic Bandgap Formation in Locally Resonant Piezoelectric Metastructures” in Smart Materials and Structures.
• SSDSL publishes “Electroelastodynamics of Flexoelectric Energy Conversion and Harvesting in Elastic Dielectrics” in Journal of Applied Physics.
• SSDSL publishes “Coupling of Experimentally Validated Electroelastic Dynamics and Mixing Rules Formulation for Macro-Fiber Composite Piezoelectric Structures” in Journal of Intelligent Material Systems and Structures.
• SSDSL receives an NSF award for contactless ultrasonic power transfer for wireless devices.
• SSDSL receives an NSF award for the hydrodynamics of active electroelastic materials in complex multimodal motion.

2016

• Prof. Erturk gives an invited lecture titled “Nonlinear MEMS Modeling” at PowerMEMS2016 School, Paris, France.
• SSDSL contributes a conference paper titled “Embedded Elastic Wave Mirrors for Enhanced Energy Harvesting” to IEEE Sensors 2016, Orlando, FL.
• SSDSL contributes a conference paper titled “Elastic Wave Focusing Concepts for Dramatically Enhanced Piezoelectric Energy Harvesting” to 27th International Conference on Adaptive Structures and Technologies, Lake George, NY.
• At 9th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Stowe, VT, SSDSL contributes a conference paper titled “Electroelastic Bandgap Formation in Locally Resonant Metamaterial Beams with Piezoelectric Shunts: A Modal Analysis Approach”; SSDSL contributes a conference paper titled “On the Optimal Piezoelectric Material Distribution in Energy Harvesting from a Nonlinear Beam Under Axial Flow”; SSDSL contributes a conference paper titled “A Distributed-Parameter Flexoelectric Energy Harvester Model Accounting for Two-Way Coupling and Size Effects.”
• SSDSL contributes a conference paper titled “Dramatic Enhancement of Elastic Wave Energy Harvesting Using a Gradient-Index Phononic Crystal Lens” to 9th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Stowe, VT (ASME SMASIS Best Student Paper Award – symposium-level).
• SSDSL contributes a conference paper titled “Modal Analysis of Bandgap Formation for Vibration Attenuation in Locally Resonant Finite Beams” to ASME 2016 IDETC 28th Biennial Conference on Mechanical Vibration and Noise, Charlotte, NC (ASME TCVS Student Paper Award – 2nd place).
• SSDSL contributes a conference paper titled “Suppression of Nonlinear Bifurcations in Flexible Structures Using Nonlinear Switching Shunt Damping Circuits” to ASME 2016 IDETC 28th Biennial Conference on Mechanical Vibration and Noise, Charlotte, NC.
• Prof. Erturk gives an invited lecture titled “Next-Generation Smart Structures and Electroelastodynamic Problems” at Mathematics and Applications Portal – Materials Theme, School of Mathematics, Georgia Institute of Technology, Atlanta, GA.
• Prof. Erturk gives an invited seminar titled “Piezoelectric Transduction for Underwater Bio-Inspired Locomotion and Contactless Power Transfer” at Department of Mechanical Engineering, University of Nevada, Reno, NV.
• Prof. Erturk gives an invited presentation titled “Good Vibrations” at Turkish American Scientists and Scholars Association Conference, University of Chicago, Chicago, IL (Young Scholar Award lecture).
• At 23rd SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, Las Vegas, NV, SSDSL contributes a conference paper titled “Dramatic Effect of Fluid Damping on the Performance of a Nonlinear M-Shaped Broadband Energy Harvester”; SSDSL contributes a conference paper titled “In Vacuo Elastodynamics of a Flexible Cantilever for Wideband Energy Harvesting”; SSDSL contributes a conference paper titled “Figure of Merit Comparison of PP-based Electret and PVDF-based Piezoelectric Polymer Energy Harvesters”; SSDSL contributes a conference paper titled “Power Conditioning for Low-Voltage Piezoelectric Stack Energy Harvesters”; SSDSL contributes a conference paper titled “Exploiting Material Softening in Hard PZTs for Resonant Bandwidth Enhancement”; SSDSL contributes a conference paper titled “Multiple Piezo-Patch Energy Harvesters Integrated to a Thin Plate with AC-DC Conversion: Analytical Modeling and Numerical Validation”; SSDSL contributes a presentation titled “Nonlinear Switching Circuits Integrated to a Structurally Nonlinear Broadband Energy Harvester.”
• Prof. Erturk gives an invited lecture titled “Smart Structures and Concepts for Self-Powered Systems with a Focus on Piezoelectric Energy Harvesting” at Denning Technology and Management Program, Georgia Tech, Atlanta, GA.
• SSDSL contributes a conference paper titled “Equivalent Circuit Modeling of Patch-based Piezoelectric Energy Harvesting on Plate-like Structures with AC-DC Conversion” to 8th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Colorado Springs, CO.
• Prof. Erturk is promoted to Associate Professor with tenure.
• Prof. Erturk receives the TASSA Young Scholar Award.
• Serife wins the symposium-level Best Student Paper Award at ASME SMASIS. Congrats!
• Chris receives second place in the ASME Technical Committee on Vibration and Sound Student Paper Competition. Congrats!
• The Chinese edition of Prof. Erturk’s book Piezoelectric Energy Harvesting is published.
• An SSDSL article is included in the Smart Materials and Structures “Highlights of 2015” collection.
• Shima joins Virginia Tech as a tenure-track assistant professor. Congrats!
• Stephen joins Lawrence Livermore National Laboratory. Congrats!
• SSDSL publishes “On the Mechanism of Bandgap Formation in Locally Resonant Finite Elastic Metamaterials” in Journal of Applied Physics.
• SSDSL publishes “Gradient-Index Phononic Crystal Lens-based Enhancement of Elastic Wave Energy Harvesting” in Applied Physics Letters.
• SSDSL publishes “Electrohydroelastic Euler-Bernoulli-Morison Model for Underwater Resonant Actuation of Macro-Fiber Composite Cantilevers” in Smart Materials and Structures.
• SSDSL publishes “Random Vibration Energy Harvesting on Thin Plates Using Multiple Piezopatches” in Journal of Intelligent Material Systems and Structures.
• SSDSL publishes “Piezoelectric Power Extraction from Bending Waves: Electroelastic Modeling, Experimental Validation, and Performance Enhancement” in Wave Motion.
• SSDSL publishes “Equivalent Circuit Modeling of a Piezopatch Energy Harvester on a Thin Plate with AC-DC Conversion” in Smart Materials and Structures.

2015

• At 8th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Colorado Springs, CO, SSDSL contributes a conference paper titled “Nonlinear Two-to-One Internal Resonance for Broadband Energy Harvesting”; SSDSL contributes a conference paper titled “Hydrodynamic Thrust Generation and Power Consumption Investigations of Piezoelectric Fins with Different Aspect Ratios”; SSDSL contributes a presentation titled “Multiphysics Harmonic Balance Framework for Piezoelectric Energy Harvesting with Mechanical and Electrical Nonlinearities.”
• Prof. Erturk gives a plenary lecture titled “Piezoelectric Energy Harvesting from Dynamical Systems: Recent Efforts and New Avenues” at 10th Annual Energy Harvesting Workshop, Blacksburg, VA.
• SSDSL contributes a conference paper titled “Experimentally Validated Nonlinear Electrohydroelastic Euler-Bernoulli-Morison Model for Macro-Fiber Composites with Different Aspect Ratios” to ASME 2015 IDETC 27th Biennial Conference on Mechanical Vibration and Noise, Boston, MA (ASME TCVS Best Student Paper Award – 2nd place).
• SSDSL contributes a conference paper titled “Harmonic Balance Analysis and Experimental Validation of a Nonlinear Broadband Piezoelectric Energy Harvester for Low Ambient Vibrations” to ASME 2015 IDETC 27th Biennial Conference on Mechanical Vibration and Noise, Boston, MA (ASME TCVS Best Student Paper Award – 3rd place).
• Prof. Erturk gives an invited talk titled “Extrinsic Nonlinear Dissipation in Energy Harvesters with Designed Geometric Nonlinearities” at Workshop to Identify Research Needs in the Area of Vibration Energy Transfer and Dissipation, National Science Foundation, Arlington, VA.
• At 22nd SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, San Diego, CA, SSDSL contributes a conference paper titled “Hydraulic Pressure Energy Harvester Enhanced by Helmholtz Resonator”; SSDSL contributes a conference paper titled “An Experimentally Validated Contactless Acoustic Energy Transfer Model with Resistive-Reactive Electrical Loading”; SSDSL contributes a conference paper titled “Modeling and Identification of Nonlinear Electroelastic and Dissipative Parameters for PZT-5A and PZT-5H Bimorphs: A Dynamical Systems Approach”; SSDSL contributes a conference paper titled “Broadband Performance of a Patterned Piezoelectric Energy Harvester Integrated with a Continuous Elastoacoustic Mirror”; SSDSL contributes a conference paper titled “Unified Electrohydroelastic Investigation of Underwater Energy Harvesting and Dynamic Actuation by Incorporating Morison’s Equation”; SSDSL contributes a conference paper titled “Bimorph Disk Piezoelectric Energy Harvester Under Base Excitation: Electroelastic Modeling and Experimental Validation.”
• At TMS Middle East – Mediterranean Materials Congress on Energy and Infrastructure Systems, Doha, Qatar, SSDSL and collaborators contribute a presentation titled “Flexoelectricity and Nanoscale Energy Harvesting”; SSDSL contributes a presentation titled “Inherent Nonlinear Nonconservative Behavior of Resonant Piezoelectric Energy Harvesters: A Dynamical Systems Approach.”
• Prof. Erturk receives the ASME Gary Anderson Early Achievement Award.
• An SSDSL article becomes the inaugural recipient of the ASME Energy Harvesting Best Paper Award.
• An SSDSL article in Smart Materials and Structures is selected as a featured article and included in the journal’s “Highlights of 2015.”
• Shima and Stephen complete their Ph.D. dissertations. Congrats!
• Shima and Stephen receive second and third place awards in the ASME IDETC Student Paper Competition. Congrats!
• Shima receives honorable mention in the ASME/SPIE Best Student Paper Competition. Congrats!
• SSDSL publishes “Hydrodynamic Thrust Generation and Power Consumption Investigations for Piezoelectric Fins with Different Aspect Ratios” in European Physical Journal – Special Topics.
• SSDSL publishes “Internal Resonance for Nonlinear Energy Harvesting” in European Physical Journal – Special Topics.
• SSDSL publishes “Nonlinear M-shaped Broadband Piezoelectric Energy Harvester for Very Low Base Accelerations: Primary and Secondary Resonances” in Smart Materials and Structures.
• SSDSL publishes “Ultrasonic Power Transfer from a Spherical Acoustic Wave Source to a Free-Free Piezoelectric Receiver: Modeling and Experiment” in Journal of Applied Physics.
• SSDSL publishes “Unified Nonlinear Electroelastic Dynamics of a Bimorph Piezoelectric Cantilever for Energy Harvesting, Sensing, and Actuation” in Nonlinear Dynamics.
• SSDSL publishes “Fourier Transform-based Design of a Patterned Piezoelectric Energy Harvester Integrated with an Elastoacoustic Mirror” in Applied Physics Letters.
• SSDSL and collaborators publish “Broadband Piezoelectric Power Generation on High-Energy Orbits of the Bistable Duffing Oscillator with Electromechanical Coupling” in Journal of Sound and Vibration.
• SSDSL receives an AFOSR award for integrated multifield resonant metamaterials for extreme low-frequency damping.
• SSDSL receives an NSF award for multiscale modeling and characterization of flexoelectric energy harvesting.

2014

• SSDSL contributes a conference paper titled “Design and Modeling of Hydraulic Piezoelectric Energy Harvesters for Low Dynamics Pressure Environments” to ASME International Mechanical Engineering Congress and Exposition, Montreal, Canada.
• SSDSL contributes a conference paper titled “Modeling and Characterization of Elastic, Coupling, and Dissipative Nonlinearities in PZT Bimorphs for Vibration Energy Harvesting” to ASME Dynamic Systems and Control Conference, San Antonio, TX.
• Prof. Erturk gives an invited seminar titled “Interaction of Inherently Present and Intentionally Designed Nonlinearities in Piezoelectric Energy Harvesting” at Department of Mechanical and Aerospace Engineering, Polytechnic Institute of NYU, Brooklyn, NY.
• At 7th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Newport, RI, SSDSL contributes a conference paper titled “Underwater Dynamic Actuation of Macro-Fiber Composite Flaps with Different Aspect Ratios: Electroelastic Modeling, Testing, and Characterization”; SSDSL contributes a conference paper titled “Nonlinear Dissipative Electroelastic Dynamics of an M-Shaped Broadband Piezoelectric Energy Harvester.”
• SSDSL contributes a conference paper titled “Contactless Ultrasonic Energy Transfer: Acoustic-Piezoelectric Structure Interaction Modeling and Performance Enhancement” to ASME 2014 IDETC 26th Biennial Conference on Mechanical Vibration and Noise, Buffalo, NY.
• Prof. Erturk gives an invited seminar titled “Piezoelectric Energy Harvesting from Dynamical Systems with a Focus on Intentional and Inherent Nonlinearities” at IMTEK (Department of Microsystems Engineering), University of Freiburg, Freiburg, Germany.
• SSDSL contributes a presentation titled “Unified Nonlinear and Dissipative Electroelastic Dynamics of Piezoelectric Structures for Energy Harvesting, Sensing, and Actuation” to 5th Conference on Nonlinear Vibrations, Localization, and Energy Transfer, Istanbul, Turkey.
• At 17th U.S. National Congress on Theoretical and Applied Mechanics, East Lansing, MI, SSDSL contributes a presentation titled “Multiphysics Framework for Piezoelectric Energy Harvesting with Mechanical, Electromechanical, and Circuit Nonlinearities”; SSDSL contributes a presentation titled “Dynamics of Acoustic-Electroelastic Structure Interaction in Underwater Energy Transfer and Harvesting.”
• Prof. Erturk gives an invited seminar titled “Electroelastic Dynamical Systems for Energy Harvesting and Bio-Inspired Locomotion” at Center for Vibration and Acoustics, Pennsylvania State University, Stage College, PA.
• At 21st SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, San Diego, CA, SSDSL contributes a conference paper titled “Electrohydroelastic Dynamics of Macro-Fiber Composites for Underwater Energy Harvesting from Base Excitation”; SSDSL contributes a conference paper titled “Nonlinear Modeling, Strength-Based Design, and Testing of Flexible Piezoelectric Energy Harvesters under Large Dynamic Loads for Rotorcraft Applications”; SSDSL contributes a conference paper titled “Ultrasound Acoustic Wave Energy Transfer and Harvesting”; SSDSL contributes a conference paper titled “Global Nonlinear Electroelastic Dynamics of a Bimorph Piezoelectric Cantilever for Energy Harvesting, Sensing, and Actuation”; SSDSL contributes a conference paper titled “Broadband and Band-Limited Random Vibration Energy Harvesting Using a Piezoelectric Patch on a Thin Plate”; SSDSL contributes a conference paper titled “Modeling and Enhancement of Piezoelectric Power Extraction from One-Dimensional Bending Waves”; SSDSL contributes a conference paper titled “Optimal Piezoelectric Energy Harvesting Using Elastoacoustic Mirrors by Frequency-Wavenumber Domain Investigation.”
• Sihong receives the Georgia Tech Sigma Xi Best M.S. Thesis Award. Congrats!
• Two SSDSL articles are included in the Smart Materials and Structures “Highlights of 2013” collection.
• An SSDSL article is included in the Bioinspiration and Biomimetics “Highlights of 2013” collection.
• SSDSL publishes “3-DOF Hybrid Piezoelectric-Inductive Aeroelastic Energy Harvester Exploiting a Control Surface” in AIAA Journal.
• SSDSL publishes “Contactless Ultrasonic Energy Transfer for Wireless Systems: Acoustic-Piezoelectric Structure Interaction Modeling and Performance Enhancement” in Smart Materials and Structures.
• SSDSL publishes “M-shaped Asymmetric Nonlinear Oscillator for Broadband Energy Harvesting: Harmonic Balance Analysis and Experimental Validation” in Journal of Sound and Vibration.
• SSDSL publishes “Power Performance Improvements for High Pressure Ripple Energy Harvesting” in Smart Materials and Structures.
• SSDSL publishes “Piezoelectret Foam-Based Vibration Energy Harvesting” in Journal of Intelligent Material Systems and Structures.
• SSDSL publishes “Deterministic and Band-Limited Stochastic Energy Harvesting from Axial Vibrations of a Multilayer Piezoelectric Stack” in Sensors and Actuators A: Physical.
• SSDSL publishes “Multiple Patch-based Broadband Piezoelectric Energy Harvesting on Plate-based Structures” in Journal of Intelligent Material Systems and Structures.
• SSDSL and collaborators publish “Nanoscale Flexoelectric Energy Harvesting” in International Journal of Solids and Structures.
• SSDSL publishes “Analytical Modeling and Experimental Validation of a Structurally-Integrated Piezoelectric Energy Harvester on a Thin Plate” in Smart Materials and Structures.
• SSDSL and collaborators publish “Closure to ‘Discussion of ‘On the Role of Nonlinearities in Vibration Energy Harvesting: A Critical Review and Discussion,’’” in ASME Applied Mechanics Reviews.
• SSDSL and collaborators publish “On the Role of Nonlinearities in Vibration Energy Harvesting: A Critical Review and Discussion” in ASME Applied Mechanics Reviews.
• SSDSL and Veraphotonics receive an NSF STTR Phase I award for a self-powered wireless leak-detection sensor for pipeline monitoring.
• SSDSL receives a Georgia Tech Institute for Electronics and Nanotechnology seed grant.

2013

• Prof. Erturk gives an invited talk titled “Low-Power Electricity Generation from Dynamical Systems” at 166th Meeting of the Acoustical Society of America, San Francisco, CA.
• SSDSL contributes a presentation titled “Coupling Efficiency Analysis of Hydraulic Pressure Energy Harvesters” to 166th Meeting of the Acoustical Society of America, San Francisco, CA (Best Presentation Award in Engineering Acoustics).
• Prof. Erturk gives an invited seminar titled “Electroelastic Dynamical Systems for Energy Harvesting and Bio-Inspired Locomotion” at Department of Mechanical Engineering, The City College of New York, New York, NY.
• At 6th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Snowbird, UT, SSDSL contributes a conference paper titled “Harvesting of Bending Waves in One-Dimensional Infinite Beams Using Resistive-Reactive Circuits”; SSDSL contributes a conference paper titled “Power Density Performance Improvements for High Pressure Ripple Energy Harvesting”; SSDSL contributes a conference paper titled “Multiple Patch-Based Piezoelectric Energy Harvesting from Multiple Vibration Modes of Thin Plates.”
• At ASME 2013 IDETC 25th Biennial Conference on Mechanical Vibration and Noise, Portland, OR, SSDSL contributes a conference paper titled “An Experimental Investigation into the Performance of a T-shaped Piezoelectric Flow Energy Harvester”; SSDSL contributes a conference paper titled “Electroelastic Finite-Element Modeling and Experimental Validation of Structurally-Integrated Piezoelectric Energy Harvesters.”
• Prof. Erturk gives an invited seminar titled “Electroelastic Dynamical Systems for Energy Harvesting and Bio-Inspired Locomotion” at Department of Mechanical Engineering, Middle East Technical University, Ankara, Turkey.
• SSDSL contributes a conference paper titled “Transduction as Energy Conversion; Harvesting of Acoustic Energy in Hydraulic Systems” to 21st International Congress on Acoustics, Montreal, Canada.
• Prof. Erturk gives an invited seminar titled “Electroelastic Dynamical Systems for Energy Harvesting and Bio-Inspired Locomotion” at College of Engineering, Koc University, Istanbul, Turkey.
• At 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Boston, MA, SSDSL contributes a conference paper titled “Numerical and Experimental Comparison of Bistable and Monostable Vibration Energy Harvesters under Broadband Random Excitation”; SSDSL contributes a conference paper titled “Dimensionless Analysis and Scaling of a Hybrid Piezoelectric-Inductive Aeroelastic Energy Harvester”; SSDSL contributes a conference paper titled “Multifunctional Double-Bimorph Piezoelectric Composite for Bending-Twisting Actuation, Active Stiffness Change, and Energy Harvesting.”
• SSDSL contributes a presentation titled “Underwater Propulsion of an Internally Actuated Elastic Plate” to American Physical Society March Meeting, Baltimore, MD.
• At 20th SPIE Annual International Symposium on Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, San Diego, CA, SSDSL contributes a conference paper titled “Energy Harvesting from Harmonic and Noise Excitation of Multilayer Piezoelectric Stacks: Modeling and Experiment”; SSDSL contributes a conference paper titled “Design and Performance Enhancement of Hydraulic Piezoelectric Energy Harvesting Systems”; SSDSL contributes a conference paper titled “Electroelastic Modeling and Analysis of a Hybrid Piezoelectric-Inductive Flow Energy Harvester.”
• Prof. Erturk receives an NSF CAREER Award in Dynamical Systems.
• Two SSDSL articles in Smart Materials and Structures are selected as featured articles.
• Prof. Erturk offers short courses at the SPIE Defense, Security and Sensing Conference and the IIMEC Winter School on Computational Materials Science.
• Sihong and Algan complete their M.S. theses. Congrats!
• SSDSL and collaborators publish “Enhanced Broadband Piezoelectric Energy Harvesting Using Rotatable Magnets” in Applied Physics Letters.
• SSDSL publishes “Metamaterial-Inspired Structures and Concepts for Elastoacoustic Wave Energy Harvesting” in Smart Materials and Structures.
• SSDSL publishes “On the Stochastic Excitation of Monostable and Bistable Electroelastic Power Generators: Relative Advantages and Tradeoffs in a Physical System” in Applied Physics Letters.
• SSDSL publishes “Hybrid Piezoelectric-Inductive Flow Energy Harvesting and Dimensionless Electroaeroelastic Analysis for Scaling” in Applied Physics Letters.
• SSDSL and collaborators publish “Energy Harvesting from Hydraulic Pressure Fluctuations” in Smart Materials and Structures.
• SSDSL publishes “Bio-Inspired Aquatic Robotics by Untethered Piezohydroelastic Actuation” in Bioinspiration and Biomimetics.
• SSDSL publishes “Electroaeroelastic Analysis of Airfoil-based Wind Energy Harvesting Using Piezoelectric Transduction and Electromagnetic Induction” in Journal of Intelligent Material Systems and Structures.
• SSDSL publishes “Electroelastic Modeling and Experimental Validations of Piezoelectric Energy Harvesting from Broadband Random Vibrations of Cantilevered Bimorphs” in Smart Materials and Structures.
• SSDSL receives an NSF award for metamaterial-enhanced electroelastoacoustic wave-energy harvesting for sensor systems.
• SSDSL and Veraphotonics receive a Navy SBIR Phase I award for an energy-harvesting wireless structural-health-monitoring system for helicopter rotors.

2012

• Prof. Erturk gives an invited seminar titled “Energy Harvesting Using Electroelastic Dynamical Systems” at Department Seminar Series, Department of Mechanical and Aerospace Engineering, Polytechnic Institute of NYU, Brooklyn, NY.
• SSDSL contributes a conference paper titled “Piezohydroelastic Investigation of Underwater Thrust Generation for Bio-inspired Robotic Applications” to 23rd International Conference on Adaptive Structures and Technologies, Nanjing, China.
• SSDSL contributes a conference paper titled “Electroelastic Modeling and Experimental Validation of Piezoelectric Energy Harvesting from Broadband Random Vibrations” to 5th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Stone Mountain, GA (ASME SMASIS Best Student Paper Award – symposium-level and conference-level).
• At 5th ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Stone Mountain, GA, SSDSL contributes a conference paper titled “Fish-like Self Propulsion Using Flexible Piezoelectric Composites”; SSDSL contributes a conference paper titled “Comparative Investigation of the Electroelastic Dynamics of Piezoceramics with Interdigitated and Uniform Electrodes”; SSDSL contributes a conference paper titled “Two Architectures for Bending-Twisting Flapping Using Macro-Fiber Composites”; SSDSL contributes a conference paper titled “Metamaterial Concepts for Structure-Borne Wave Energy Harvesting: Wave Focusing, Funneling, and Localization”; SSDSL and collaborators contribute a conference paper titled “Energy Harvesting from Hydraulic Pressure Fluctuations.”
• SSDSL contributes a conference paper titled “Energy Harvesting from Broadband Random Vibrations: Comparison of Single-Mode and Multi-Mode Electroelastic Solutions” to ASME 2012 IDETC 24th Biennial Conference on Mechanical Vibration and Noise, Chicago, IL.
• Prof. Erturk gives an invited talk titled “Random Excitation of Piezoelectric Stacks, Patches, and Cantilevers for Energy Harvesting Under Traffic Loads” at NSF International Workshop on Smart and Resilient Transportation Infrastructure, Blacksburg, VA.
• Prof. Erturk gives an invited talk titled “Electroelastic Dynamical Systems for Energy Harvesting” at Turkish American Scientists and Scholars Association Conference, University of Maryland, College Park, MD.
• Prof. Erturk gives an invited seminar titled “Linear and Nonlinear Vibration-based Energy Harvesting” at Applied and Computational Mathematics Seminar, School of Mathematics, Georgia Institute of Technology, Atlanta, GA.
• Sihong receives the conference-level Best Student Paper Award at ASME SMASIS. Congrats!
• Lejun completes an M.S. thesis on fish-like locomotion using flexible piezoelectric composites. Congrats!
• Prof. Erturk is named a Georgia Tech Class of 1969 Teaching Fellow.
• SSDSL publishes “Dramatic Enhancement of Structure-Borne Wave Energy Harvesting Using an Elliptical Acoustic Mirror” in Applied Physics Letters.
• SSDSL and collaborators publish “Nonlinear Nonconservative Behavior and Modeling of Piezoelectric Energy Harvesters Including Proof Mass Effects” in Journal of Intelligent Material Systems and Structures.
• SSDSL publishes “Assumed-modes Modeling of Piezoelectric Energy Harvesters: Euler-Bernoulli, Rayleigh, and Timoshenko Models with Axial Deformations” in Computers and Structures.
• SSDSL and collaborators publish “Bending Strength of Piezoelectric Ceramics and Single Crystals for Multifunctional Load-Bearing Applications” in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.
• SSDSL and collaborators publish “Multifunctional Unmanned Aerial Vehicle Wing Spar for Low-Power Generation and Storage” in AIAA Journal of Aircraft.
• SSDSL and collaborators publish “Piezoelectric, Solar and Thermal Energy Harvesting for Hybrid Low-Power Generator Systems with Thin-Film Batteries” in Measurement Science and Technology.