abaqus做冲裁模拟时check出错，具体出错情况如下

For a contact surface, the facets of the elements in element set ErrElemFacetCoin3d-Step1 have coincident nodes. The mesh must defined so that surfaces do not have coincident nodes (sometimes the redundant nodes can simply be removed from the mesh by equivalencing in the preprocessor).
Resolution of initial overclosure may have caused excessive distortion.