Instability and localized deformation in polycrystalline solids under plane-strain tension

In this paper we investigate the nonuniform and localized deformation of a polycrystalline aggregate under plane-strain tension. A finite element analysis based on rate-dependent crystal plasticity has been developed to simulate large strain behaviour. Each material point in the specimen is considered to be a polycrystalline aggregate of a large number of FCC grains. The Taylor theory of crystal plasticity is assumed. This analysis accounts for …