Scalable Implementation of Three-Dimensional Heterogeneous Media Subjected to Short Transient Impact Loads.

摘要

This report is concerned with developing and implementing scalable algorithmic approaches for solving coupled micro and macro structural applications based on the asymptotic expansion homogenization (AEH) method. AER for nonlinear and short transient loading applications is computationally demanding and cannot be addressed on serial computers. Hence, the emphasis of the present investigation is to develop and implement consistent AEH numerical formulations on scalable computers to address elasto-plastic material response of structures subjected to short transient loading. A second order, accurate velocity-based, explicit time integration method, in conjunction with the AEH method on scalable computing architectures, is implemented using message-passing interface (MPI). Two different scalable implementation approaches are discussed, and the scalability of the computational approach is demonstrated.