Numerical study of the flange earring of deep-drawing sheets with stronger anisotropy

摘要

A Barlat-Lian anisotropy yield function is introduced into a quasi-flow corner theory of elastic-plastic finite deformation and the elastic-plastic large deformation finite element formulation based on the principle of virtual velocity and the discrete Kirchhoff triangle plate shell element model. The focus of the present researches is on the numerical simulation of the flange earring of deep-drawing process of circular sheets with stronger anisotropy, based on which, the schemes for controlling the flange earring are proposed.