화학공학소재연구정보센터
Materials Science Forum, Vol.495-497, 1091-1096, 2005
A texture based model for polycrystal plasticity
In the present work the texture component model developed in [2] is used to predict the plastic anisotropy of a textured aluminum sheet in terms of the yield stress, the R value, and the earing profile resulting from a cup drawing operation. The model which is formulated in a viscoplastic setting, has been implemented in the commercial finite element code ABAQUS. The stress deviator is computed directly from the crystallite orientation distribution function which is approximated by a set of Gauss type model functions. The model is particularly suitable for the description of crystallographic textures which can be described by a small number of texture components. The numerical results are compared with experimental data and numerical results by Lege et al. [8].