Simulation of earing in textured aluminum sheets

In this paper we investigate the phenomenon of earing, which is a troublesome defect often observed during the deep drawing of rolled aluminum sheets. A special finite element analysis for this problem has been developed where only the flange area of the sheet is modelled. A polycrystal and a phenomenological model are used for the numerical simulations of earing. For the polycrystal model, the material behaviour is described using crystal …