A method of substructuring large-scale computational micromechanical problems

摘要

In this work, a method is developed to decompose or substructure large-scale micromechanical simulations into a set of compu- tationally smaller problems. In the approach the global domain is partitioned into nonoverlapping subdomains. On the interior subdomain partitions an approximate globally kinematically admissible solution is projeted. This allows the subdomains to be mutually decoupled, and therefore separately solvable. The subdomain boundary value problems are solved with the exact micro- structural representation contained within their respective boundaries, but with approximate displacment boundary data.