解决 Excessive distortion 的一般思路

使用 Abaqus 模拟分析大变形情况时一个经常出现又不容易解决的错误就是单元过度变形(Excessive Element Distortion)。出现该错误模型就会中止运行。虽然 Abaqus 会具体地给出出现过度变形的那些单元(ErrElemExcessDistortion),然而这些信息往往对解决问题并没有多少帮助。

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boundary conditions reference regions which contains geometric entities that are not associated with a mesh

When using Bottom-up Mesh in Abaqus, sometimes an error message of “boundary conditions reference regions which contains geometric entities that are not associated with a mesh” may pop up after submit the job. One of my colleague suggested following tip to solve it.

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