DISCRETE SLIP MODEL OF CRYSTALS AND FINITE ELEMENT ANALYSIS

Based on the experiment results of single crystals, a discrete slip model is established to describe the crystal plastic deformation. The main characteristics of the model is that the slip deformation of the crystal is macro innhomogeneous and the distribution of slip bands is discrete. Crystal plastic theory and finite element method are used to analyse the finite deformation of the model. Digital results display the discrete characteristics of the crystal slip deformation. The calculated stress strain r...