Seminar Schedule – Fall 2017

Tuesday, September 19, 2017
Time: 3:30-5:00 PM
Place: WRW 102

High-fidelity and reduced-order models for materials in extreme environments

Justin W. Wilkerson, University of Texas at Austin

Over the past five decades there has been an intense effort to understand and control the thermomechanical response of materials in extreme environments. A number of technologies critical to our safety and well-being stand to benefit from such understanding including next-generation fission and fusion reactors, defense systems, spacecraft shielding, vehicular crashworthiness, and advanced manufacturing. Materials in such extreme environments often exhibit complex, somewhat non-intuitive mechanical behavior that is difficult to predict with empirical or phenomenological models. Here we discuss our development of a number of multiscale, mechanism-based models that help unravel this inherent complexity. This seminar will focus primarily on the development of an atomistically-informed crystal plasticity framework for deformation and failure of shock compressed single crystals and polycrystals. We further utilize this high-fidelity modeling framework to provide key insights into the development of reduced-order models, which are helpful in guiding the microstructural design of advanced light-weight armor and shielding materials.

For further information, please contact Dr. Rui Huang at ruihuang@mail.utexas.edu or 512-471-7558.