516 Crystal plasticity analysis of strain localization in a bent specimen

Abstract

In the pure bending, there exists inherently a gradient of plastic strain. Therefore, the pure bending problem is appropriate for investigating the length scale of materials. However, few studies for pure bending at large strain have been done so far. In this study, we perform finite element simulations of pure bending with consideration of length scale and strain localization, by introducing the effect of geometrically necessary dislocations, which has an association with a gradient of plastic strain, into the crystal plasticity model.