Since I started at LLNL in 2010, I've been involved in predicting the strength of metals using dislocation dynamics simulations. I've been developing the ParaDiS capability. ParaDiS models the evolution of dislocation lines into highly complex microstructures in response to an external load. Designed to run on massively parallel supercomputers, ParaDiS allows researchers to follow tens of thousands of simulated dislocations in a several micrometer-long cube over several seconds with periodic boundary conditions.
Honors and Awards
- 1998 Winner of the Seymour Cray Prize in numerical simulation
Selected (Recent) Publications
Haidong Fan, Sylvie Aubry, Athanasios Arsenlis, Jaafar A El-Awady, "The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations ",
Haidong Fan, Sylvie Aubry, Athanasios Arsenlis and Jaafar El Awady, "Orientation influence on grain size effects in ultrafine-grained magnesium",
David Garner, Carol Woodward, Daniel Reynolds, Gregg Hommes, Sylvie Aubry, and Athanasios Arsenlis, "Implicit integrators for dislocation dynamics", submitted
Joshua Crone, Peter Chung, Kenneth Leiter, Jaroslaw Knap, Sylvie Aubry, Gregg Hommes, and Athanasios Arsenlis, " A multiply parallel implementation of finite element-based discrete dislocation dynamics for arbitrary geometries"
Sylvie Aubry, Steve Fitzgerald, and Athanasios Arsenlis, "Methods to compute dislocation line tension energy and force in anisotropic elasticity",
Sylvie Aubry and Athanasios Arsenlis, "Use of spherical harmonics for dislocation dynamics in anisotropic elastic media",