有限要素多結晶モデルによる塑性変形解析

抄録

A finite-element polycrystal model proposed by Takahashi [Int. J. Plasticity, 10 (1994), 63. ]where each element in FEM is assumed to be a crystal having different orientations is applied to 3-dimensional plastic deformation analysis of ear in deep drawing and texture in extrusion. The crystal orientations are determined from the pole figures obtained by X-ray diffraction. The calculated results for FCC metal are compared with the experiments for aluminium and these results almost agree. Even though the number of crystals is limited due to the computational cost, the predicted features are appropriate for practical use.