abaqus切削仿真報錯不收斂終止怎么辦？

切削仿真的時候，前一步算的好好的，下一步就不行了，

報錯：

The elements contained in element set ErrElemExcessDistortion-Step1 have distorted excessively.

There are a total of 4 excessively distorted elements

The elements contained in element set ErrElemExcessDistortion-Step1 have distorted excessively.

Abaqus/Explicit Analysis exited with an error - Please see the  status file for possible error messages if the file exists.

改了好多參數都只能算到13步，不知道根本原因在什么地方，求大神給指點一下，謝謝