Ellad B. Tadmor
Ellad B. TadmorProfessor, Department of Aerospace Engineering & Mechanics
Ph.D., Solid Mechanics, Brown University, USA, 1996
M.Sc., Mechanical Engineering, Technion, Israel, 1991
B.Sc., Mechanical Engineering, Technion, Israel, 1987
Professor, Aerospace Engineering & Mechanics, University of Minnesota, 2006-Present
Associate Professor, Faculty of Mechanical Engineering, Technion, 2005-2006
Senior Lecturer, Faculty of Mechanical Engineering, Technion, 1999-2004
Lecturer, Faculty of Mechanical Engineering, Technion, 1998-1999
Postdoctoral Research Associate, Division of Engineering and Applied Science, Harvard University, 1996-1998
Adjunct Professor and Research Associate, Division of Engineering, Brown University, 1996
Research Engineer, Structural Analysis Group, Weapon Systems Division, RAFAEL - Israel Armament Development Authority, 1989-1991
Scientific & Professional Societies
- Materials Research Society
- Israel Society for Theoretical and Applied Mechanics
- United States Association of Computational Mechanics
Professor Tadmor's research focuses on understanding material response from fundamental principles rather than phenomenology. Tadmor studies microscopic processes that lead to macroscopic phenomena such as fracture and plasticity using atomic-scale modeling and multiple-scale techniques. Professor Tadmor is also interested, on a more basic level, in the connection between continuum theory and atomistic models. Some recent specific topics include:
- Continued development and extension of the Quasicontinuum (QC) Method. QC is a multiscale method that makes it possible to simulate large-scale problems using a continuum model while including atomistic resolution where necessary, for example near a crack tip, where atomic-scale processes are important. QC was developed by Tadmor during his Ph.D. work and is currently one of the leading multiscale methods in use in the world.
- Understanding the microscopic foundations of continuum mechanics. Recent work includes the derivation of expressions for stress and heat flux in atomistic systems based on statistical mechanics. The new derivation provides a unified framework in which all existing definitions for continuum quantities are obtained as limiting cases. This helps to clarify the meaning of these definitions and their range of applicability.
- Development of the "Knowledgebase of Interatomic Models" (KIM) -- an online infrastructure for assessing the transferability of interatomic potentials. "This project aims to answer the question: When and to what extent can we believe the results of atomistic simulations of materials?"
- Development of multiscale methods for simultaneously spanning both length and time scales. Current multiscale methods either span over multiple lengthscales (as QC) or accelerate time, but not both. Efforts are currently underway to develop hybrid methods that do both. This will enable predictive studies of complex phenomena such as friction and corrosion cracking.
- Development of multiscale methods for "objective structures". Objective structures, recently proposed by R. D. James are "molecular structures composed of identical molecules such that corresponding molecules "see" the same environment up to orthogonal transformation." The introduction of objective structures constitutes a breakthrough in solid state physics. Many structures that are not crystalline (like proteins, viruses and nanotubes) are objective structures. The development of multiscale methods for these structures will enable their simulation under realistic conditions involving complex deformation and the presence of defects.
Honors and Awards
2017: Plenary Speaker, Res Metallica Symposium
2014: Plenary Speaker - 2nd Annual Mach Conference
2012: Plenary Speaker - 32nd Israeli Conference on Mechanical Engineering
2012: Plenary Speaker - 52nd Sanibel Symposium
2003: Student Council, Faculty of Mechanical Engineering, Technion- ME Student Council Award for Best Lecturer
2000-2001: Technion Award for Excellence in Teaching
2001: Salomon Simon Mani Award for Excellence in Teaching
1998-1999: Technion Award for Excellence in Teaching
1998-2000: ATS Women's Division - Jacob Ullmann Academic Lectureship
1997: NSF Fellowship to attend CECAM workshops in France
1995: MRS Graduate Student Award
1990: RAFAEL Professional Excellence Award
Zhang, K. & Tadmor, E. B. , 2018, Structural and electron diffraction scaling of twisted graphene bilayers, Journal of the Mechanics and Physics of Solids , (Journal Article)
Kim, W. K. & Tadmor, E. B., 2017, Accelerated quasicontinuum: a practical perspective on hyper-QC with application to nanoindentation, Philosophical Magazine, p. 1-33, (Journal Article)
Tadmor, E. B. & Miller, R. E., 2017, Benchmarking, validation and reproducibility of concurrent multiscale methods are still needed, Modelling and Simulation in Materials Science and Engineering, Vol. 25, Issue 7, Article 071001, (Journal Article)
Gerberich, W., Tadmor, E. B., Kysar, J., Zimmerman, J. A., Minor, A. M., Szlufarska, I., Amodeo, J., Devincre, B., Hintsala, E. & Ballarini, R., 2017, Review Article: Case studies in future trends of computational and experimental nanomechanics, Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 35, Issue 6, Article 060801, (Journal Article)
Singh, A. & Tadmor, E. B., 2017, Simulating the superheating of nanomaterials due to latent heat release in surface reconstruction, International Journal of Heat and Mass Transfer, Vol. 107, p. 792-804, (Journal Article)