Scalable coupling of multi-scale AEH and PARADYN impact analyses

This work describes scalable coupling of two stand alone computer codes for multiscale impact analysis of composites. An asymptotic expansion homogenization (AEH) based microstructural code available for modeling microstructural aspects of modern armor materials is coupled with PARADYN, a parallel explicit Lagrangian finite element code. The first code enables modeling of material microstructures in simple loading situations in stand-alone form. The coupling of this code to PARADYN, which is a parallel version of the Lawrence Livermore National Laboratory (LLNL)´s serial DYNA3D, enables a micro-macro type multiscale analysis of large elastic-plastic deformation response of structures under generalized three dimensional impact conditions. Three sets of results are presented to demonstrate: 1) the verification of the AEH-PARADYN model coupling to PARADYN, 2) validation of the AEH, and 3) the scalability of the coupled model.