FINITE-ELEMENT ANALYSIS OF FLAT ROLLING WITH INCLUSION OF ANISOTROPY

Anisotropy is a major phenomenon which influences roll torque, roll fo rce and distribution of pressure and shear stress on the roll-strip in terface. In this paper, a model for steady-state plane strain cold rol ling is presented, which takes into account anisotropic behavior of th e sheet. For this purpose, a modified yield function is presented for solving plane strain problem. A parametric study has been carried out for hypothetical material parameters to study their influence on desig n parameters. It is established that anisotropy should be included in numerical simulation codes for getting correct estimate of design para meters. (C) 1997 Elsevier Science Ltd.