科研之友
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摘要
Inverse analysis method of sheet metal forming has the shortcoming of not being able to predict stress distribution precisely.A DKT shell element is implemented to describe the bending moment caused by the difference of stress distribution between inner and outer layer.A fast and reliable searching scheme is used to find elements passing by die entrance radius during the deformation process. The theory of pure bending of beams is used to modify the bending moments for elements passing by die entrance radius...
