拉伸断裂模型: 关键字“TENSILE FAILURE”可以和Mises、Johnson-Cook塑性模型或者EOS(状态方程模型)结合使用,用于模拟由于拉伸破坏引起的材料失效行为。紧接着关键字下一行,依次定义:静水压应力(hydrostatic cutoff stress)、温度(可省略)、第一场变量第二场变量直至第四场变量(可省略),其中静水压应力为失效判据。静水压应力取材料的拉伸强度。 例如: * TENSILE FAILURE 3, The tensile failure criterion assumes that failure occurs when a pressure stress, becomes more tensile than a specified hydrostatic cutoff stress,When the tensile failure criterion is met at an integration point, all the stress components are set to zero and that material point fails. If all of the material points at any one section of an element fail the element is removed from the mesh.
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