Lectures and Seminars -

Upcoming Seminars

5.18.21 – AI for Materials – Junjie Yang, JHU

Acoustic emission (AE) is a physical phenomenon where transient elastic stress waves propagate from a source(s) in a solid material due to an external stimulus (e.g. load). The sources are local regions of irreversible change within the material volume and can be associated with dislocation motion, phase transformations, twinning, crack initiation, and/or crack growth, among others. When these stress waves reach the surface, they can be characterized by a surface displacement, and are commonly detected as a change in the electrical signal output. AE detection is thus a useful tool for non-destructive evaluation (NDE) of materials in structural applications. However, it is challenging to quantify the interplay between different plasticity mechanisms with AE due to the inability to decode the measured acoustic waves into separate signatures of overlapping active mechanisms. In this talk, we will focus on AE signals induced by dislocation activities. The first part will involve the numerical simulations of AE signals by incorporating elasto-dynamic displacements calculations into our in-house Discrete Dislocation Dynamics (DDD) simulations. In the second part, we will discuss our attempts to parse the mechanisms, position and time information out of the AE signals from simulations using machine learning techniques (e.g. Physic Informed Neural Networks). For more information, click here.

6.1.21 – MSEE Seminar – Andrea Kritcher, LLNL

More details coming soon!

7.6.21 – MSEE Seminar – Nick Glumac, UIUC

More details coming soon!

Previous Seminars

Dana Dlott, UIUC – “Watching solids and liquids through the ultrafast shock compression microscope”

Steve Son, Purdue – “Engineering Energetic Materials”

Carolyn C. Kuranz, University of Michigan – “Hydrodynamic Instability and Radiation Hydrodynamics Experiments in High-energy-density Plasmas”

Tim Mueller, JHU – “Machine-learned Potential Models for Atomic-scale Calculations”

Laura Berzak Hopkins, LLNL – “X-ray:matter interaction experiments at the National Ignition Facility”

Kim Knight, LLNL – “Understanding the Influence of Environment on Nuclear Explosion Physics and Chemistry”

Steven Storck, JHU APL – “Realizing Materials by Design: Harnessing the Full Potential of Additive Manufacturing Using In Situ Sensing and Machine Learning”

Rebecca Hersman, CSIS – “Talking Tech: The Importance of Science and Technology Leadership in Policy Decisionmaking”

Junjie Yang, JHU – “Acoustic signature and reconstruction of defect avalanches in metals“

KT Ramesh, HEMI – “Shock and Awe” mini-course

KT Ramesh, HEMI – “Dynamic Deformations in Nature and in Technology”

Stéphane Avril, IMT – “Inverse Problems in Cardiovascular Continuum Mechanics and Medical Applications”

Tim David, Univ. of Canterbury, New Zealand – “Neurovascular Coupling: “A Balance of Power””

Ximin He, UCLA – “Bioinspired Adaptive Materials based on Smart Hydrogels: Sensing, Solar Harvesting, and Soft Robotics”

Lorenzo Valdevit, UC Irvine – “Fabrication, Mechanical Performance, Deformation and Damage Mechanisms of Ceramic Nano-architected Materials”

Baoxing Xu, Univ. of Virginia – “Mechanics-Driven Extreme Transfer Printing of Functional Films”

Bruce Remington, NIF Discovery Science Program – “Frontier HED Science on NIF Through the Discovery Science Program”

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Lauren Zarzar, Pennsylvania State University – “Structural Coloration by Cascading Total Internal Reflection and Interference at Microscale Concave Interfaces”

Cayman Unterborn, Arizona State University – “Exoplanet Geoscience: Challenges and Opportunities for the Extreme Materials Community”

Dan Gianola, UC Santa Barbara – “Characterization of Defects and their Dynamics using Transmission Scanning Electron Microscopy”

Arup Neogi, University of North Texas – “Active Periodic and Non-Reciprocal Phononic Structures for Control of Ultrasonic Wave Propagation”

Wei Tong, Southern Methodist University – “On Modeling Strength Differential Effects of Anisotropic HCP Metals”

Christopher Ober, Cornell University – “Metal Organic Cluster Photoresists for EUV Lithography Using Cornell’s CNF, the Original NSF Nanofabrication Facility”

Dr. Tanusree Chakraborty, Indian Institute of Technology, Delhi – “Geomechanics of Blast”

Chris Wohl (NASA) – “Mitigating Contaminant Adhesion on Aerospace Surfaces”

Yunzhi Wang, Ohio State University – “Development of microstructure-sensitive and mechanism-based modeling tools for microstructure-property relationships in Ni-base superalloys”

Kejie Zhao, Purdue University – “Bridging mechanics and electrochemistry: Experiments and modeling on battery materials”

Guoliang Huang, University of Missouri-Columbia – “Programmable and Modulated Metamaterials for Unprecedented Wave Propagation Control”

Huseyin Sehitoglu, University of Illinois – “Scientific Understanding of Shape Memory Alloys”

Boaz Pokroy, Technion – “Programmable and Modulated Metamaterials for Unprecedented Wave Propagation Control”

Paul Asimow, Caltech – “Towards a Comprehensive Thermal Equation of State for Silicate Liquids at Lower Mantle pressure (and Beyond)”

Chris Eberl, Fraunhofer Institute for Mechanics of Materials IWM – “From Mechanical Metamaterials to Simple Systems Made from Programmable Materials”

Yoonseob Kim, MIT – “Stretchable Electronic and Photonic Materials from Self-Organized Nanoparticles”

Robert Suter, Carnegie Mellon – “High Energy X-Ray Diffraction Microscopy Study of Coarsening Iron”

James Rustad, DoE – ““Molecular” Geology: Where Are We and Where Do We Go From Here?”

Brady Aydelotte, ARL – “Non-Steady State Penetration of Ceramics Observed with Proton Radiography”

Alexander Saunders, Los Alamos National Laboratory – “Looking at Bullet Impacts and Inside Explosions: Proton Radiography at Los Alamos National Lab”

David Camarillo, Stanford University – “Precision Measurement of Mild Brain Trauma Using an Instrumented Mouthguard”

Suzanne Ali, Lawrence Livermore National Laboratory – “Approximating Reality Better: Using Experimental Data and Uncertainties to Build Material Models for Extreme Conditions”

David Stepp, US Army Research Office – “The Army Research Office – Why We DO What We Do and How We Can Help You”

James Guilkey, University of Utah – “Cyberstone: A Material Point Method Based Model for Diagenesis”

J.F. Nie, Monash University – “Microstructures, Formability and Mechanical Properties of Wrought Mg Alloys”

Eric Herbold, Lawrence Livermore National Laboratory

Seokheun (Sean) Choi, Binhampton University (SUNY) – “Microscale Engineering to Electromicrobiology”

Lisa Rueschoff (AFRL) – “Novel Ceramic Processing and Structure Control for Enhanced Properties in Extreme Environments”

Amy M. Peterson (University of Massachusetts, Lowell) – “Modeling and Informatics Approaches to Advance Material Extrusion Additive Manufacturing”

Minta C. Akin (Lawrence Livermore National Laboratory) – “It’s All a Hot Mess: Temperature and Heterogeneity in Shock Physics”

Susanna Thon (JHU) – “Spectral Engineering of Nanomaterials for Robust Solar Energy Harvesting”

Maryam Ghazisaeidi (Ohio State University) – High Entropy Alloys: Mechanical Properties and Phase Stability”

Nilanjan Mitra (Indian Institute of Technology Kharagpur) – “Shock Loading of Single Crystal Copper”

Prof. Dipankar Banerjee, Department of Materials Engineering, Indian Institute of Science Bangalore – “Novel High Temperature, High Strength Eutectic Intermetallics”

Prof. Julie Cairney (Univ. of Sydney), Prof. Sophie Primig (Univ. of South Wales), Prof. Simon Ringer (Univ. of Sydney)

Yixiang Gan, Senior Lecturer, School of Civil Engineering, The University of Sydney Australia – “Transport Phenomena in Compacted Granular Media: How mass, heat, and electrons flow in such materials”

George Em Karniadakis, Division of Applied Mathematics, Brown University, Department of Mechanical Engineering, MIT “Physics-Informed Learning Machines”

Raymond Smith, Lawrence Livermore National Laboratory-
“An Overview of Frontiers in Lazer-based Dynamic Compression Experiments”

Chris Marone, Prof. of Geophysics & Associate Director, Institute for Natural Gas Research, Pennsylvania State University “The Mechanics of Slow Earthquakes and the Spectrum of Fault Slip Behaviors”

Michelle Oyen, The Nanoscience Centre, Cambridge University Engineering Department

“Physically Robust Hydrogels for Biomedical Applications”

Dwayne Arola, Dept. of Materials Science and Engineering, University of Washington “Bioinspired Microstructures for Damage Tolerance and More”

Marius Millot, Research Scientist, High Energy Density Physics, Lawrence
Livermore National Laboratory “Experimental Discovery of Superionic Water with Dynamic Compression”

Dr. Harold Robinson, Naval
Undersea Warfare Division,
Office of Naval Research – “Relaxor Piezoelectric Single Crystals: Materials, Devices and Application Impacts”

Natalia Drichko, Associate Research Professor in Physics and Astronomy Department, JHU – “Strongly correlated and magnetic materials with structural disorder: Raman scattering study”

Tyrel McQueen,
Associate Professor, Department of Chemistry, JHU – “The Dawn of the Chemistry of Quantum Materials: Discovery, Synthesis, and
Behavioral Insights”

Derek Richardson, Department of Astronomy, University of MD, College Park – “Granular Dynamics in Low Gravity”

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Timothy P. Weihs, JHU – “Nanostructured Metal Fuels and Iodine Oxides for Defeating Bio-Agents

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Mark A. Tschopp, Army Research Laboratory – “Understanding Structure-Property Relationships of Grain Boundaries and Interfaces for Materials Design”

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Derek Warner, Cornell University – “Examining the Chemo-mechanics of Hydrogen Enhanced Fatigue Crack Growth in Aluminum Alloys”

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Michael Dickey, NC State University – “Soft, Stretchable, and Reconfigurable Materials for Electronics and Actuators”

Christopher Yakacki, University of Colorado Denver – “Main-Chain Liquid-Crystal Elastomers with Tailored Thermomechanical Properties”

Cristian I. Contescu, Oak Ridge National Laboratory – “The Amazing Properties of Nuclear Graphite and Its Use for Clean Energy Generation”

Eric Clough, HRL Laboratories – “Microlattice Structural and Energy Absorbing Materials”

Nasr M. Ghoniem, University of California, Los Angeles – “Development of Micro-Architected Materials for Space Propulsion and Pulsed Power Applications”

Banahalli R. Ratna, Naval Research Laboratory – “Recent Breakthroughs in Molecular Biology, Physics, Nanoscience, and Chemistry and the emergence of Novel Biocentric Technologies”

John Borg, Marquette University – “Dynamic Behavior of Earth Materials Subjected to Pressure-Shear Loading”

Jongseung Yoon, University of Southern California – “New Approaches for Using III-V Compound Semiconductors in Photovoltaic and Photoelectrochemical Solar Energy Conversion”

Jay Gould, HEMI Artist in Residence – “Extreme Arts”

Jamie Guest, Johns Hopkins University – “Topology Optimization for the Design of Manufacturable Architected Materials and Components”

Dennis Kochmann, California Institute of Technology – “Challenges in predicting microstructure evolution in metals from the atomic to the macroscopic scale”

Gregory A. Banyay, Gregory Meyer, Michael R. Ickes, Westinghouse Electric Company – “Reviews of the AP1000® Plant Comprehensive Vibration Assessment Program and Radioactive Materials Testing”

Shu Yang, University of Pennsylvania – “Foldable and Responsive Soft Metamaterials”

Nikki Zander, Dan Cole, Kevin Hart, and Frank Gardea, U.S. Army Research Laboratory – “Projects in Additive Manufacturing and Charged Polymers at ARL”

Dr. Zdeněk P. Bažant, Northwestern University – “Branching of Hydraulic Fractures in Shale and the Fiction of Preexisting Large-Scale Permeability”

Ivan Kirov, New York University – “Metabolic Imaging of Traumatic Brain Injury Using Magnetic Resonance Spectroscopy”

Kisuk Kang, Seoul National University – “Rational Design of Advanced Materials for Post li-Ion Batteries”

Dr. Irene Beyerlein, Los Alamos National Laboratory – “The Plasticity of Highly Oriented Nano Layered Zr/Nb Composites”

Prof. Collin Broholm, Department of Physics & Astronomy, Johns Hopkins University, “Strange Magnetism Exposed by Neuron Scattering”

Dr. Wei Cai, Stanford University – “Dislocation Dynamics and Plasticity of FCC Materials”

Dr. McLean Echlin, Research Specialist, University of California Santa Barbara “Performance and Design of Structural and Functional Materials and New Modes of Mesoscale Characterization”

Dr. Ahmed Elbanna, University of Illinois – “Bone: Some Mechanics and Inspiration”

Dr. Timothy Harrigan, ScD MBA PE, JHU Applied Physics Laboratory “Pressure and Momentum Transfer to the Body Due to Blast Exposure: Simulation and Experimental Results”

Stefan Hiermaier

Dr. Stefan Hiermaier, Prof. Dr.-Ing. habil. and Director, Fraunhofer Institut für Kurzzeitdynamik, Ernst-Mach-Institut – “Resilient Dynamics”

Dr. Thomas Hochrainer, Universität Bremen – “Thermodynamically Consistent Continuum Dislocation Dynamics”

Mr. Larry Holmes, Jr., ARL Principal Investigator for Additive Manufacturing Materials and Technology Development – “Advanced Manufacturing R & D at the US Army Research Laboratory”

Dr. Noam Izenberg, Johns Hopkins University Applied Physics Laboratory and Dr. Lori Glaze, Goddard Space Flight Center – “Hopkins Goes to Venus!”

Dr. Shailendra Joshi, Associate Professor of the Department of Mechanical Engineering, National University of Singapore, “Unraveling Texture, Triaxiality and Anisotropy Effects in Plycrystalline Magnesium Alloys”

Dr. Nanshu Lu, University of Texas at Austin – “Epidermal Sensor Systems for Sensing and Therapy”

Dr. Michele Manuel, University of Florida – “Tracking Mesoscale Evolution in Light Metals: How Design and Databases Play a Critical Role”

Dr. Anna Pandolfi, Associate Professor of Structural Mechanics, Politecnico di Milano, Italy, “On Electro-Active Anistropic Material Models for the Behavior of the Large Intestine”

Dr. Pavana Prabhakar, University of Texas at El Paso – “Mechanics and Manufacturing of Hybrid Materials for Durability and Damage Tolerance”

Erica Schoenberger

Prof. Erica Schoenberger, Department of Geography and Environmental Engineering, Johns Hopkins University- “Researching Interdisciplinary Research: Materials in Extreme Dynamic Environments”

Prof. Dr. Andre Studart, Associate Professor, Department of Materials, ETH Zurich – “Additive Manufacturing of Bio-inspired Composites”

Dr. June Wicks, Associate Research Scholar, Princeton University – “From Super-earth Interiors to Our Own Earth’s Surface: Using Dynamic Compression to Study Our Universe”

Dr. Joanna Aizenberg – “Stealing from Nature: Bioinspired Extreme Materials”

Dr. Daniel Eakins – “Recent developments towards dynamic X-ray probing of extreme physical states”

Dr. Mark Foster – “Photonic Systems for High-Speed Compressive Imaging and Sensing”

Prof. Joelle Frechette, Department of Chemical and Biomedical Engineering, Johns Hopkins University

Dr. Rajiv S. Mishra – “Microstructural Paths for Investigation of Deformation Mechanisms in High Performance Magnesium Alloys”

Dr. Mark Opeka – “A Heated Subject – Hypersonic Vehicle Leading Edge/Nosetip Materials and Sub-Structures”

Dr. William Proud – “The High-strain Rate Loading of Structural Biological Materials”

Joseph M. Zaug, Lawrence Livermore National Laboratory