Developing space-time dependent boundary conditions for composite RVEs at high strain-rates

This paper examines the effectiveness of periodic boundary conditions (PBCs), when applied to heterogeneous representative volume elements (RVEs) subjected to high strain-rate loading conditions. Even for a periodic multi-phase microstructure, the local stress and strain responses in the RVE under conditions of high strain-rate is not periodic. Stress waves propagate in the microstructure and interact with heterogeneities, resulting in...