Johns Hopkins University Whiting School of Engineering

Kaliat T. Ramesh


Professor
Mechanical Engineering
Center for Advanced Metallic and Ceramic System
Secondary Appointment: Principal Professional Staff, APL
www.hemi.jhu.edu ()

Latrobe 122 (office)
410-516-7735 (office)
ramesh@jhu.edu (primary)

Staff Contact:
Amanda Fabrizio
fabrizio@jhu.edu
410-516-7257
ResearcherID webpage >>

Education

Ph.D. 1988, Brown University
Sc.M. 1987, Brown University
Sc.M. 1985, Brown University

Experience

2001: Director, Center for Advanced Metallic and Ceramic Systems
1997: Professor of Mechanical Engineering, The Johns Hopkins University
2002-2003: Visitor (Visiting Professor), Departments of Engineering and Physics, University of Cambridge, Cambridge, UK
2002-2003: Visiting Professor, University of Cambridge
1999-2002: Chair, Mechanical Engineering
1997-2001: Joint Appointment as Professor, Materials Science & Engineering
1993-1998: Joint Appointment as Associate Professor, Department of Materials Science and Engineering
1993-1997: Associate Professor of Mechanical Engineering, The Johns Hopkins University
1988-1993: Assistant Professor of Mechanical Engineering, The Johns Hopkins University
1987-1988: Postdoctoral Fellow, Center of Excellence in Advanced Materials, University of California at San Diego

Research Areas

Dynamics of human tissues and traumatic brain injury

Shock, impact, and wave propagation
Nanomaterials, nanoscale phenomena
High-strain-rate behavior of materials
Dynamic failure mechanisms

Planetary impact and fragmentation

Journal Articles

Daphalapurkar, N.P., Ramesh, K.T., George, T., Islam, M., Dutta, A. (2012). Designer materials for a secure future. Micro- and Nanotechnology Sensors, Systems, and Applications Iv. 8373.
DOI » View record in Web of Science SM
Huskins, E., Cao, B., Li, B., Ramesh, K.T. (2012). Temperature-Dependent Mechanical Response of an UFG Aluminum Alloy at High Rates. Experimental Mechanics. 52(2). 185-194.
DOI » View record in Web of Science SM
Williams, C.L., Ramesh, K.T., Dandekar, D.P. (2012). Spall response of 1100-O aluminum. Journal of Applied Physics. 111(12).
DOI » View record in Web of Science SM
Hu, G., Chen, C.Q., Ramesh, K.T., Mccauley, J.W. (2012). Dynamic multiaxial response of a hot-pressed aluminum nitride. Scripta Materialia. 66(8). 527-530.
DOI » View record in Web of Science SM
Daphalapurkar, N.P., Ramesh, K.T. (2012). Orientation dependence of the nucleation and growth of partial dislocations and possible twinning mechanisms in aluminum. Journal of the Mechanics and Physics of Solids. 60(2). 277-294.
DOI » View record in Web of Science SM

Conference Proceedings

Misra, S., Ramesh, K.T., Okamura, A. "Physically Valid Surgical Simulators: Linear Versus Nonlinear Tissue Models", Studies in Health Technology and Informatics, Medicine Meets Virtual Reality, 2008, vol.132, pp.293-295.
Misra, S., Okamura, A., Ramesh, K.T. "Force Feedback is Noticeably Different for Linear versus Nonlinear Elastic Tissue Models", Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Tsukuba, Japan, March 2007, 2007, pp.519-524.
Strassburger, E., Patel, P., Mccauley, P., Kovalchick, C., Ramesh, K., Templeton, D.W. "High-speed Transmission Shadowgrapic and Dynamic Photoelasticity Study of Stress wave and Impact Damage Propagation in Transparent materials and laminates Using the Edge-on Impact (EOI) Method", 25th Army Science Conference Proceedings, 2006.
Wei, Q., Schuster, B.E., Kecskes, L.J., Dowding, R.J., Cho, K.C., Magness, L.S., K.t.ramesh, E.MA, Valiev, R.Z. "Nanoengineering Applied to Tungsten", International Conference on Tunsten, Refractory and Hardmetals VI, Orlando, FL Feb. 7-8, 2006, 2006.
Paliwal, B., Ramesh, K.T., Mccauley, J.W., Patel, P. "Dynamic Failure of AlON under Uniaxial Compression", Proceedings of the INternational Conference and Exposition on Advanced Ceramics and Composites, 2005.

Awards & Honors

2008: Conference Best Poster Award: Medicine Meets Virtual Reality (MMVR), with Allison Okamura and graduate student Sarthak Misra. 2008
2002: Invited Southwest Mechanics Series Lecturer, 2002
2001: Fellow, ASME
1995: William H. Huggins Award for Excellence in Teaching
1994: Honorary Member, Pi Tau Sigma
1987: Best Paper, ASME Division of Tribology
1986: Elected Member, Sigma Xi
Received the 2006 Hetenyi Award from the Society of Experimental Mechanics.

Presentations

Rocks, Shocks and Asteroids: The Dynamic Failure of Brittle Materials Southwest Research Institute, San Antonio, TX. 2011-12-01 (Invited), December 1, 2011
Axon Injury Micro-Compression Platform 48th Annual Technical Conference of Society of Engineering Sciences, Evanston, IL. 2011-10-12, October 12, 2011
Dynamics of Twin Boundary Motion in Face-centered Cubic Metals 48th Annual Technical Conference of Society of Engineering Sciences, Evanston, IL. 2011-10-12, October 12, 2011
Rocks, Shocks and Asteroids: The Dynamic Failure of Brittle Materials Pennsylvania State University, University Park, PA. 2011-10-06 (Invited), October 6, 2011
Rocks, Shocks and Asteroids: The Importance of Being Fractured Brown University, Providence, RI. 2011-09-21 (Invited), September 21, 2011
Implementing a Micromechanics Based Continuum Damage Model for Simulating Brittle Material Failure Under Compressive Loading The 11th US National Congress on Computational Mechanics, Minneapolis, MN. 2011-07-25, July 25, 2011
Adding Insult to Injury: The Dynamics of Human Tissues IUTAM Symposium on Impact Biomechanics in Sport, Dublin, Ireland. 2011-07-07 (Invited), July 7, 2011
Deformation Mechanisms In Aluminum Nitride Under Shock Loading APS Shock Compression of Condensed Matter 2011, Chicago, IL. 2011-06-26, June 26, 2011
Effect of strain rate and dislocation density on the twinning behavior in Tantalum APS Shock Compression of Condensed Matter 2011, Chicago, IL. 2011-06-26, June 26, 2011
A Scaled Model Describing the Rate Dependent Failure of Brittle Materials 35th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2011-06-23, June 23, 2011
Length Scale Effects on the Dynamic Failure Strengths of Brittle Materials 35th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2011-06-23, June 23, 2011
Modeling Interactions, Lengthscales and Timescales in the Dynamics of Armor Ceramics 35th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2011-06-23, June 23, 2011
The strength and failure of ceramics at very high strain rates 35th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2011-06-23, June 23, 2011
Modeling Study For The Design Of An Innovative Composite Membrane Inflation Test ASME 2011 Summer Bioengineering Conference, Farmington, PA. 2011-06-22, June 22, 2011
Dynamic compressive strength of transparent polycrystalline spinel (MgAl2O4) SEM XII International Congress & Exposition on Experimental & Applied Mechanics, Uncasville, CT. 2011-06-13, June 13, 2011
Dynamic Response of Aluminum Nitride under Very High Strain Rate and Pressure SEM XII International Congress & Exposition on Experimental & Applied Mechanics, Uncasville, CT. 2011-06-13, June 13, 2011
Electrical-Mechanical Response of Dynamically Loaded Piezoelectric Materials SEM XII International Congress & Exposition on Experimental & Applied Mechanics, Uncasville, CT. 2011-06-13, June 13, 2011
Understanding Damage Growth Under Global Compression SEM XII International Congress & Exposition on Experimental & Applied Mechanics, Uncasville, CT. 2011-06-13, June 13, 2011
Soft, Squishy and Fibrous: a Cellular-Level Injury Criterion for Traumatic Brain Injury in Humans SUNY Stony Brook, Stony Brook, NY. 2011-05-06 (Invited), May 6, 2011
The Dynamic Deformation of Human Tissues, and a Cellular Injury Criterion for White Matter Department of Defense Brain Injury Computational Modeling Expert Panel, MIT, Boston, MA. 2011-03-29, March 29, 2011
A Size Dependent Scaling Law Based On The Rate Dependent Strength Of Rocky Bodies 42nd Lunar and Planetary Science Conference, The Woodlands, TX. 2011-03-09, March 9, 2011
High Strain Rate Behavior of 2139-T8 Al Alloy TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Lighter, Stronger, Faster: Materials for an Insecure Future TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Microcompression of Single-Crystal Magnesium – Impact of Initial Dislocation Density TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Partial Dislocation Nucleaton And Twinning In Aluminum TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Searching and characterizing deformation twins in tantalum deformed under a wide range of loading conditions and environment temperatures by using TEM and HREM TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Thermal Stability of Commercially Pure Ultra-fine Grained Al at High Strain Rates TMS Symposium on Dynamic Behavior of Materials, San Diego, CA. 2011-02-27, February 27, 2011
Soft, Squishy and Fibrous: a Cellular-Level Injury Criterion for Traumatic Brain Injury in Humans National University of Singapore, Singapore. 2011-01-13 (Invited), January 13, 2011
Compressive Behavior of Small Metallic Glass Pillars from Micrometers to Nanometers 2009 Materials Research Society Fall Meeting, Boston, MA. 2009-11-30, November 30, 2009
The Small, the Swift and the Strong Carnegie Mellon University, Pittsburgh, PA. 2009-10-23 (Invited), October 23, 2009
The Small, the Swift and the Strong National University of Singapore, Singapore. 2009-08-03, August 3, 2009
Predicting variability of the failure strength in materials with pre-existing defects through computational modeling 10th US National Congress on Computational Mechanics, Columbus, OH. 2009-07-16, July 16, 2009
Length Scales and Nanomaterials APS Shock Compression of Condensed Matter 2009, Nashville, TN. 2009-06-29, June 29, 2009
Application of Diffusion Tensor Imaging in Modeling Diffuse Axonal Injury 2009 Summer Bioengineering Conference, Lake Tahoe, CA. 2009-06-17, June 17, 2009
The Processes of Massive Dynamic Failure SEM 2009 Annual Conference & Exposition on Experimental & Applied Mechanics, Albuquerque, NM. 2009-05-31, May 31, 2009
The Mechanics of Nanomaterials The Office of Naval Research, Washington, DC. 2009-04-20, April 20, 2009
Visualization of High- and Low-Rate Compressive Failure of Quartz. 40th Lunar and Planetary Science Conference, The Woodlands, TX. 2009-03-23, March 23, 2009
Quantifying Perception of Nonlinear Elastic Tissue Models using Multidimensional Scaling World Haptics Conference 2009, University of Utah, Salt Lake City, UT. 2009-03-20, March 20, 2009
The Processes of Massive Dynamic Failure IUTAM Symposium on Dynamic Fracture and Fragmentation, Austin, TX. 2009-03-08, March 8, 2009
A Statistical View of High-Rate Material Instability and Failure The Minerals, Metals & Materials Society 2009 138th Annual Meeting & Exhibition, San Francisco, CA. 2009-02-17 (Invited), February 17, 2009
Length-Scale Dependent Failure of Hierarchical Composites The Minerals, Metals & Materials Society 2009 138th Annual Meeting & Exhibition, San Francisco, CA. 2009-02-17 (Invited), February 17, 2009
Uni-axial and confined dynamic compression of AlN 33rd International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL. 2009-01-18, January 18, 2009
Dynamic Failure Processes Under Confining Stress in AlON, a Transparant Polycrystalline Ceramic 26th Army Science Conference. Orlando, FL. 2008-12-00., November 30, 2008
Grain size and sample size effects on the rate-dependent deformation and failure of nanocrystalline metals MRS Fall Meeting 2008. Boston, MA. 2008-12-00. (Invited), November 30, 2008
Size-Independent Strength and Deformation Mode in Compression of a Pd-based Metallic Glass MRS Fall Meeting 2008. Boston, MA. 2008-12-00. (Invited), November 30, 2008
The Processes of Massive Dynamic Failure Rutgers University, Department of Mechanical and Aerospace Engineering. Piscataway, NJ. 2008-11-19. (Invited), November 19, 2008
The Processes of Massive Dynamic Failure University of Michigan, Department of Mechanical Engineering. Ann Arbor, MI. 2008-10-17. (Invited), October 17, 2008
The Small, the Swift and the Strong Illinois Institute of Technology, Department of Mechanical and Aerospace Engineering. Chicago, IL. 2008-10-15. (Invited), October 15, 2008
Internal Rupture in a Viscoplastic Solid ASME Int'l. Mechanical Congress & Expo. Boston, MA. 2008-10-00., September 30, 2008
Microstructural Aspects of Ductile Rupture in Solids 2008 4th International Conference on Multiscale Materials Modeling (MMM). Tallahassee, FL. 2008-10-00. (Invited), September 30, 2008
Needle-Tissue Interaction Forces for Bevel-Tip Steerable Needles 2nd Biennial IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics. Scottsdale, AZ. 2008-10-00., September 30, 2008
The Small, the Swift and the Strong EPFL, Department of Civil Engineering and Computational Solid Mechanics Laboratory. Lausanne, Switzerland. 2008-10-00. (Invited), September 30, 2008
The Small, the Swift and the Strong ETH - Swiss Federal Institute of Technoloty. Zurich, Switzerland. 2008-10-00. (Invited), September 30, 2008
The High-Strain-Rate Deformation and Dynamic Failure of Materials Multi-Scale Materials Behavior in Ultra-High Loading Rate Environments Workshop. Towson, MD. 2008-09-22. (Invited), September 22, 2008
Deformation and Failure of Metallic Glasses 18th DYMAT Technical Meeting: The Behaviour of Bulk Nanomaterials and Metallic Glasses under Dynamic Loading. Bourges, France. 2008-09-00. (Invited), August 31, 2008
Dynamic Behavior of Nanomaterials 18th DYMAT Technical Meeting: The Behaviour of Bulk Nanomaterials and Metallic Glasses under Dynamic Loading. Bourges, France. 2008-09-00. (Invited), August 31, 2008
On the microscale compressive properties of BCC metals International Conference on Tungsten, Refractory & Hardmetals VII. Washington, D.C.. 2008-08-00., July 31, 2008
Advances in Experimental Fracture Mechanics: Applications to Fragmentation and Cratering Asteroids, Comets & Meteors 2008. Baltimore, MD. 2008-07-00., June 30, 2008
Anisotropic Modeling of Fibrous White Matter 2008 ASME Summer Bioengineering Conference. San Marco Island, FL. 2008-06-00., May 31, 2008
Deformation Mechanisms in Nanomaterials 2008 SEM Int'l. Congress & Expo on Experimental & Applied Mechanics. Orlando, FL. 2008-06-00. (Invited), May 31, 2008
Ultra-fine Grained Aluminum Alloy under Dynamic Load at High Temperatures 2008 SEM International Congress & Expo on Experimental & Applied Mechanics. Orlando, FL. 2008-06-00., May 31, 2008
Dynamic Void Growth in a Viscoplastic Material New Models and Hydrocodes. Lisbon. 2008-05-00., April 30, 2008
Advances in Experimental Fracture Mechanics: Applications to Planetary Cratering 39th Lunar & Planetary Science Conference (LPSC). Houston, TX. 2008-03-00., February 29, 2008
Defects, Distributions and Dynamic Failure Force Protection Workshop UCSB. Santa Barbara, CA. 2008-03-00. (Invited), February 29, 2008
MD Simulation of Dislocation Slip and Twinning in Tensile Deformation of Single Crystal Magnesium TMS 137th Annual Meeting & Exhibition. New Orleans, LA. 2008-03-00., February 29, 2008
Rate Dependent Characteristics of Pure Magnesium and AK60 Alloy TMS 137th Annual Meeting & Exhibition. New Orleans, LA. 2008-03-00., February 29, 2008
Effects of Confinement on the Dynamic Failure of Brittle Materials: Experiments and Micro-mechanical Modeling 32nd Int'l. Conference & Expo on Advanced Ceramics & Composites. Daytona Beach, FL. 2008-01-00., December 31, 2007
Microcompression Experiments on AlON Single Crystals 32nd Int'l. Conference & Expo on Advanced Ceramics & Composites. Daytona Beach, FL. 2008-01-00., December 31, 2007
Modeling Massive Dynamic Failure Processes ICMMS 2008. Bangalore, INDIA. 2008-01-00. (Invited), December 31, 2007
Bulk and Micro-Scale Compressive Properties of a Pd-based Metallic Glass Materials Research Society Fall Meeting. Boston, MA. 2007-12-00., November 30, 2007
A parallel multiscale model for brittle materials using a finite element based micromechanical model and homogenization theory American Physical Society, Shock Compression of Condensed Matter. Kauai, HI. 2007-11-00., October 31, 2007
Effects of the Strain rate and Confinement on Brittle Failure: An Interacting MIcro-crack Damage Model ASME International Mechanical Engineering Conference / Expo. Seattle, WA. 2007-11-00., October 31, 2007
Rate Dependent Mechanical Response of Hierarchical Composites: Experiments and Modeling ASME International Mechanical Engineering Conference and Expo. Seattle, WA. 2007-11-00., October 31, 2007
The Small, the Swift and the Strong Johns Hopkins University Department of Physics and Astronomy. Baltimore, Maryland. 2007-11-00. (Invited), October 31, 2007
Dynamic Failure in Materials and Structures under Impact Loading 7th International Conference on Shock & Impact Loads on Structures. Beijing, China. 2007-10-18. (Invited), October 18, 2007
The Processes of Massive Dynamic Failure Northwestern Polytechnical University. Xi'an, China. 2007-10-15. (Invited), October 15, 2007
The Small, the Swift and the Strong University of Nebraska. Lincoln. 2007-10-09. (Invited), October 9, 2007
A Self-Consistent Statistical Theory for the Dynamics of Void Growth in a Viscoplastic Material Society of Engineering Science. Texas A&M. 2007-10-00., September 30, 2007
The Small, the Swift and the Strong Johns Hopkins University, Department of Mechanical Engineering. Baltimore, MD. 2007-09-00. (Invited), August 31, 2007
Instabilities in Nanostructured Materials International Conference on Experimental Mechanics. Alexandropoulis, Greece. 2007-07-00., June 30, 2007
A Self-Consistent Statistical Theory for the Dynamics of Void Growth in Ductile Materials ASME Mechanics and Materials Conference. Austin, TX. 2007-06-00., May 31, 2007
Comparitive study of dynamic deformation mechanisms of fcc and bcc metals with ultrafine and nanocrystalline microstructures ASME Mechanics and Materials Conference. Austin, TX. 2007-06-00., May 31, 2007
Finite element based micromechanical modeling of brittle materials under compressive loading American Physical Society, Shock Compression of Condensed Matter. Kauai, HI. 2007-06-00., May 31, 2007
High Stain Rate Dependence of Nano-Micro Al 5083 as Compared to Conventional Material ASME Mechanics and Materials Conference. Austin, TX. 2007-06-00., May 31, 2007
Improved fragment size distributions from post-processed hydrocode simulations Hypervelocity Impact Symposium. Williamsburg, VA. 2007-06-00., May 31, 2007
Finite Element Based Micromechanical Modeling of a Brittle Ceramic Under Compressive Loading Army Symposium on Solid Mechanics. Baltimore, MD. 2007-04-00., March 31, 2007
The High-Strain Rate Properties of Nanostructured Metals Nanomaterials for Defense Applications. San Diego, CA. 2007-04-00. (Invited), March 31, 2007
The Processes of Massive Dynamic Failure Michigan Technological University. Houghton, MI. 2007-04-00. (Invited), March 31, 2007
The Small, the Swift and the Strong: Observations in Solid Mechanics Army Symposium on Solid Mechanics. Baltimore, MD. 2007-04-00. (Invited), March 31, 2007
The Processes of Massive Dynamic Failure George Irwin Symposium. University of MD, College Park. 2007-03-20. (Invited), March 20, 2007
A Mechanistic Model For Shear Bands in Nanostructured Materials Annual Meeting of TMS. Orlando, FL. 2007-02-00. (Invited), January 31, 2007
Plastic Processes Leading to Damage and Failure Annual Meeting of TMS. Orlando, FL. 2007-02-00. (Invited), January 31, 2007
Rate Dependent Behavior of Ultrafine Grained Magnesium Alloy Annual Meeting of TMS. Orlando, FL. 2007-02-00., January 31, 2007
Techniques for the Measurement of the High-Strain-Rate Deformations of Materials Annual Meeting of TMS. Orlando, FL. 2007-02-00. (Invited), January 31, 2007
The High-Strain-Rate Deformations of Structural and Nanocrystalline Metals Annual Meeting of TMS. Orlando, FL. 2007-02-00. (Invited), January 31, 2007
Confined Compressive Failure of AlON International Conference and Expo on Advanced Ceramics & Composites. Daytona Beach, FL. 2007-01-00., December 31, 2006
Finite-element based modeling of damage in brittle materials: from micro to macro U.S. National Congress on Computational Mechanics. San Francisco, CA. 2007-00-00., November 30, 2006
Force Feedback is Noticeably Different for Linear versus Nonlinear Elastic Tissue Models World Haptics Conference. Tsukuba, Japan. 2007-00-00., November 30, 2006
Microstructure and Mechanical Behavior of Ultrafine Grained Tantalum Processed by Equal Channel Angular Extrusion up to 16 Passes Bulk Nanostructured Materials. Ufa, Ukraine. 2007-00-00., November 30, 2006
Modifications to the Compression Kolsky Bar for Characterizing Soft Biomaterials at Impact Loading Rates SAMPE Annual Meeting. Baltimore, MD. 2007-00-00., November 30, 2006
A Finite Element Based Micromechanical Damage Model for Brittle Materials under Compressive Loading ASME International Mechanical Engineering Conference and Exposition. Chicago, IL. 2006-11-00., October 31, 2006
A Mechanistic Model for Plastic Instabilities in Nanostructured Materials ASME International Mechanical Engineering Conference and Exposition. Chicago, IL. 2006-11-00., October 31, 2006
Dynamic Response of Human Brain Tissues ASME International Mechanical Engineering Conference and Exposition. Chicago, IL. 2006-11-00., October 31, 2006
Feeling the Impact: the Dynamics of Human Tissues Seminar: University of Cyprus. Nicosia, Cypress. 2006-10-25. (Invited), October 25, 2006
The Processes of Massive Dynamic Failure University of Florida, Gainesville, FL. 2009-10-06, October 6, 2006
Modeling the Compressive Brittle Failure Mechanism ASME International Mechanical Engineering Conference and Exposition. Chicago, IL. 2006-10-00., September 30, 2006
A New Ductile Spall Model Based on Dynamics of Void Growth DYMAT. Dijon, France. 2006-09-00., August 31, 2006
Continuumatonistic Analysis of Tension Instability in Carbon Nanotubes: The Effect of Multi-body Interaction Annual Meeting of the Society of Engineering Science. State College, PA. 2006-08-00., July 31, 2006
The Effects of Microstructure and Nanostructure on the Mechanical Behavior of Heterogeneous Metals Seminar: Indian Institute of Science. Bangalore, India. 2006-07-05. (Invited), July 5, 2006
Compressive Micromechanical Probing for Advanced Materials Society for Experimental Mechanics Annual Meeting. Springfield, MA. 2006-06-00., May 31, 2006
Dynamic Damage Nucleation and Growth in Ceramics Annual Meeting of the Society for Experimental Mechanics. St. Louis, MO. 2006-06-00. (Invited), May 31, 2006
Mechanical Properties of Soft Human Tissues under Dynamic Loading Annual Meeting of the Society for Experimental Mechanics. St. Louis, MO. 2006-06-00. (Invited), May 31, 2006
A New Ductile Spall Model Based on Dynamics of Void Growth New Models and Hydrocodes for Shocks in Solids. Dijon, France. 2006-04-09. (Invited), April 9, 2006
The High-Strain-Rate Deformation of Structural and Nanocrystalline Metals Seminar: Lawrence Livermore National Laboratory. Livermore, CA. 2006-03-23. (Invited), March 23, 2006
The High-Rate Failure of Ceramics: Direct Visualization and Modeling Seminar: Sandia National Laboratory . Albuquerque, NM. 2006-03-22. (Invited), March 22, 2006
Mechanical Modeling of Bimodal Al-5083 Alloys TMS Annual Meeting. San Antonio, TX. 2006-03-00., February 28, 2006
Ceramic Damage under Dynamic Loading: Direct Visualization and Modeling ARO Ceramics Damage Workshop. VA. 2006-02-14. (Invited), February 14, 2006
Remarkable Dynamic Mechanical Properties of a "Trimodal" Al 5083/B4C Composite. TMS Annual Meeting. San Antonio, TX. 2006-02-00., January 31, 2006
Direct Observation of Dynamic Compressive Failure of AIon. International Conference and Exposition on Advanced Ceramics and Composites. Cocoa Beach, FL. 2006-01-00., December 31, 2005
Adiabatic Shear Banding in Ductile Materials and Bulk Metallic Glass under Impact Loading U.S. National Congress on Theoretical and Applied Mechanics. Boulder, CO. 2006-00-00., November 30, 2005
High-Speed Transmission Shadowgraphic and Dynamic Photoelasticity Study of Stress Wave and Impact Damage Propagation in Transparent Materials and Laminates using the Edge-On Impact (EOI) Method Army Science Conference. . 2006-00-00., November 30, 2005
Microcompression of Bulk Metallic Glass and Tungsten - Bulk Metallic Glass Composites Army Science Conference. . 2006-00-00., November 30, 2005
Microcompression of Nanocrystalline and Amorphous Metals Materials Science and Technology Conference. Cincinnati, OH. 2006-00-00., November 30, 2005
A Model for Dynamic Fragmentation ASME Int. Mech. ENg. COnf. & Exposition. Anaheim, CA. 2004-11-00., October 31, 2004
The Materials Centers of Excellence: A New Model for Government – University Collaborations 3rd International Symposium on the Science of Engineering Ceramics. Osaka, Japan. 2004-11-00., October 31, 2004
The Very High Strain Rate Behavior of Metals ASME International Mechanical Engineering COnference and Exhibition. Anaheim, CA. 2004-11-00. (Invited), October 31, 2004
The Mechanical Behavior of Nanostructured Metals Research Seminar. Brown University. 2004-10-00. (Invited), September 30, 2004
The Dynamic Fragmentation of Brittle Materials International Workshop on Computational Mechanics of Materials. Goa, India. 2004-09-23. (Invited), September 23, 2004
Mechanical Behavior of Nanostructured Metals Research Seminar. GE Jack Welch Research Center, India. 2004-09-21. (Invited), September 21, 2004
A Model for the High Strain Rate Response of BCC Metals TMS Materials Science and Technology Conference . New Orleans. 2004-09-00., August 31, 2004
Fragmentation of a Dynamically Expanding Brittle Ring Annual Meeting of the Society of Engineering Science. Lincoln, NE. 2004-09-00., August 31, 2004
The Behavior of Aluminum Alloys at High Strain Rates Society for Experimental Mechanics. Costa Mesa,. 2004-06-00. (Invited), May 31, 2004
Mechanical Behavior of Nanostructured Metals Research Seminar. Georgia Institute of Technology. 2004-04-15. (Invited), April 15, 2004
Dynamic Failure and Fragmentation Research Seminar. Applied Physics Laboratory. 2004-03-25. (Invited), March 25, 2004
Dynamic Fragmentation Investigation: Strain Rate Effects on Fragment Size and Fragment Size Distributions nternational Conference and Exposition on Advanced Ceramics and Composites. Cocoa Beach, FL. 2004-01-00., December 31, 2003
Dynamic Failure Mechanisms in Nanostructured Metals and Bulk Metallic Glasses Seminar. University of Illinois at Urbana-Champaign. 2002-12-02. (Invited), December 2, 2002
Mechanisms of dynamic failure in metallic glasses MRS Fall Meeting. Boston, MA. 2002-12-00., November 30, 2002
Mechanical Behavior of Ceramics under Impact Loading 9. ASME International Mechanical Engineering Congress. New Orleans, LA. 2002-11-17., November 17, 2002
From Microstructures to Nanostructures: the Behavior of Materials at High Strain Rates Seminar. University of Cambridge (Engineering Department). 2002-11-15. (Invited), November 15, 2002
The Deformation and Failure of Metal-Ceramic Composites under Very High Rates of Loading Physics and Chemistry of Solids Colloquium. University of Cambridge. 2002-10-17. (Invited), October 17, 2002
Modeling Damage With Shear Bands And Voids In Metals Society of Engineering Science Annual Meeting. State College, PA. 2002-10-00., September 30, 2002
Design of Graded Metal Matrix Composites for Ceramic Armor 10. NATO Symposium on Combat Survivability of Air, Sea, and Land Vehicles. Aalborg, Denmark. 2002-09-23., September 23, 2002
Effects of Grain Size on the Shear Localization of Iron 14th US Congress on Applied Mechanics. Blacksburg, VA. 2002-06-24., June 24, 2002
Shear Band Development In A Bulk Metallic Glass Under Dynamic Loading 14th US Congress on Theoretical and Applied Mechanics. Blacksburg, VA. 2002-06-24., June 24, 2002
The Dynamic Growth of A Single Void in A Viscoplastic Material under Transient Hydrostatic Loading 14th US Congress on Theoretical and Applied Mechanics. Blacksburg, VA. 2002-06-24., June 24, 2002
Constitutive Response Of Active Polymer Gels as Analogs to Biological Materials Seminar. Tulane University. 2002-03-26. (Invited), March 26, 2002
From Microstructures to Nanostructures: the Behavior of Materials at High Strain Rates. Seminar. Southern Methodist University. 2002-03-25. (Invited), March 25, 2002
From Microstructures to Nanostructures: the Behavior of Materials at High Strain Rates. Seminar. University of Texas at Arlington. 2002-03-24. (Invited), March 24, 2002
From Microstructures to Nanostructures: the Behavior of Materials at High Strain Rates. Seminar. Texas A&M University. 2002-03-22. (Invited), March 22, 2002
From Microstructures to Nanostructures: the Behavior of Materials at High Strain Rates. Seminar. University of Delaware. 2002-02-22. (Invited), February 22, 2002
Crystallization and mechanical behavior of (Hf, Zr)-Ti-Cu-Ni-Al metallic glasses TMS Annual Meeting & Exhibition. Seattle, WA. 2002-02-17., February 17, 2002
Shear Banding as the Dominant Deformation Mechanism in Nanophase and Ultrafine-grained Iron TMS Annual Meeting & Exhibition. Seattle, Washington. 2002-02-17. (Invited), February 17, 2002
High-Strain-Rate Deformations and Adiabatic Shear Bands in BCC and HCP Metals Seminar. Drexel University, Philadelphia, PA. 2001-00-00. (Invited), November 30, 2000
28 Presentations in 2010 submitted as text!, December 31, 1969

Committees

2008:  Chair, Whiting School of Engineering International Affairs Advisory Committee 
2001: Director, Center for Advanced Metallic and Ceramic Systems
2001: Industrial Interaction Development: Northrop Grumman, GE, Southwest Research Institute
2001: Member, Whiting School Strategic Planning Advisory Council
2001: Member, Executive Committee of the Center for Non-Destructive Evaluation (CNDE) in the Whiting School
2001: Member, Faculty Advisory Committee to the Sheridan Libraries
2001: Elected by the undergraduates: Faculty Representative, Hopkins Undergraduate Academic Ethics Board
: Past Chair, Technical Committee on Dynamic Response of Materials, ASME AMD
: Experimental Mechanics Committee, ASME Applied Mechanics Division
: Fracture and Failure Mechanics Committee, ASME AMD
: Dynamic Response of Materials Committee, ASME AMD
2010 - 2013: Academic Council
2007 - 2010:  Chair, EP (Engineering for Professionals), Mechanical Engineering 
2001 - 2010: Chair, Faculty Search Committees, Mechanical Engineering
2006 - 2008: Chair, Industrial Relations, Mechanical Engineering
2006 - 2006: Graduate Board Orals, Thesis Defenses
2004 - 2006: Chair, Graduate Recruiting Committee, Mechanical Engineering
1999 - 2002: Chair, Department of Mechanical Engineering