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Abstract：
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Based on the plastic potential equations of Gurson rigid\|plastic materials containing voids,void\|damage is introduced into the constitutive equations of the materials in order to consider its volume variation, and the FEM equations with the combination of stress,strain and damage as well as the equations solutions are deduced.Furthermore,with the reference of the simplified form of the FEM equations of the rigid\|plastic compressible materials, the matrix expression of the finite elements equivalent strain rate is similarily simplified, and the FEM equations are correpondingly simplifed.
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AuthorIntro：
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