Elasto-Plastic Finite Deformation Simulations using 3-D Parallel XFEM

Abstract

In this work, a parallel XFEM is presented to solvenonlinear solid mechanics problems. The material behavior is modeled using isotropic hardening based on J2 theory of plasticity. The geometrical nonlinearity is modeled through updated Lagrangian formulation. Penalty approach is employed to impose the contact constraint at the material interfaces. A node-to-node technique is used to model the contact behavior. Aparallel algorithm is implemented to reduce the computational time. Some nonlinear problems are simulated to check the efficiency of the parallel algorithm. © 2015 Elsevier Ltd.