Abstract

The matrix method of analysis for rigid-plastic materials was applied to the problems of plane-stress bore expanding and flange drawing. The analysis was performed for two materials: one in which the anisotropy exists only in the direction of sheet thickness (normal anisotropy.); and the other possessing the two mutually perpendicular axes of anisotropy in the plane of the sheet and the other axis in the direction of thickness (planar anisotropy.). The results revealed the effect of the state of anisotropy on the deformation characteristics in these processes, assuming that the coefficient of anisotropy remains constant and the axes of anisotropy do not rotate during the deformation.

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