| Abstract Scope |
In metal plasticity, the material response is subject to consideration of two separate types of length scales. The first length-scale is introduced by the boundary-value problem (BVP) through the governing partial differential equation and the geometry of the domain. The second length-scale is introduced by the material microstructure, for example from grain morphology or defect structures. In assessing the accuracy of numerical simulations of metal plasticity, the first type of length-scale is often considered, but the second type of length-scale is almost never considered. In this talk, we present results of numerical studies on apparent anisotropy of cubic metals designed to assess the interactions of BVP and material length-scales. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA-0003525. |