Strength and fatigue analysis of periodic perforated materials using the computational homogenization and ES-FEM approaches

This paper presents a computational homogenization shakedown analysis of periodic perforated materials with von Mises matrices. The plastic behaviors the under cyclic macroscopic loads are studied by means kinematic theorem and method. micro-fields approximated edge-based smoothed finite element resulting large-scale optimization problem is efficiently solved using conic solver, enabling large number points on strength fatigue surface to be calculated rapidly. effects hole's shape size overall domains also investigated.