Key words: FEM, ECAE , molecular orientation

Abstract: The behavior of molecularly orientated polycarbonate (PC) sheets was investigated numerically. In the present contribution finite element simulations, using a physically-based viscohyperelastic-viscoplastic constitutive model, were carried out in order to evaluate the degree and distribution of molecular chain anisotropy in polycarbonate and the effect of strain rate on distribution of plastic deformation when it is extruded by the ECAE process at 135°.