Elastoplastic 3D Deformation and Stress Analysis of Strip Rolling

摘要

An elastoplastic method for analyzing the 3D deformation, stress and transverse dis- tribution of tension stress during cold strip rolling is developed. The analysis is based on the elasto- plastic variational principle in which a kinematically admissible velocity field is constructed with the lateral flow function as an unknown function. The stress distribution and volume strain distribution are obtained by solving the simultaneous equations formed by the longitudinal differential equation of equilibrium and constitutive equations.