Wrinkling of axisymmetric parts made by drawing of an anisotropic material

Deep drawing is often accompanied by buckling of compressed and compressed-stretched areas of a sheet material in the form of wrinkles, which leads to distortions of the original shape of the part and its subsequent failure. In the majority of studies of this problem, isotropic materials are considered. However, sheet materials obtained by rolling exhibit anisotropic mechanical properties. Therefore, buckling failure in the form of wrinkling of an anisotropic material is of great interest. In this paper, the energy method is used. A criterion for buckling in the form of wrinkling when drawing anisotropic sheet materials is developed. The influence of technological parameters and anisotropy of mechanical properties of a sheet material on wrinkling of anisotropic materials at axisymmetric drawing is studied. The results of experimental studies of wrinkling of anisotropic sheet materials at drawing are presented. The results of experimental studies are in good qualitative and quantitative agreement with theoretical data.

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