Topology optimization of multi-material structures with elastoplastic strain hardening model

Abstract The paper presents a new multi-material topology optimization method with novel adjoint sensitivity analysis that can accommodate not only multiple plasticity but also hardening models for individual materials in composite structures. Based on the proposed method, an integrated framework is developed which details nonlinear finite element analysis, and procedure. are implemented illustrated by three numerical examples presented this paper. An in-depth of results has revealed significant impact selection model topology.