赋值part-1，part-2就不用赋值了啊 装配
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Step
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Interaction
直接创建crack xfem 不需要在创建seam了
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Region 选择整个面
Crack location specify select 选择part-2 否则就是自动判断了啊 并指定接触属性
When an element is cut by a crack, the compressive behavior of the crack surfaces has to be considered.
The formulae that govern behavior are very similar to those used for surface-based small-sliding penalty contact
However, the frictional behavior is not yet considered in the shear direction.
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在重新进入 step
设置
中的
忘了就看不见裂纹扩展 只能看见应力场
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