How to calculate the contour integral from orphan mesh in ABAQUS?

03 September 2021 0 5K Report

I have created a 2D cracked plate mesh in ANSYS APDL and then imported it into the ABAQUS. I want to calculate the J integral in ABAQUS using this mesh. I have followed all the steps as per normal fracture analysis in ABAQUS. But after submitting the job it is showing the error " Triangles, Tetrahedra, and wedges may not be used in a contour integral region. 24 elements are within a contour region."

can anyone provide me the procedure for How to calculate the J integral using orphan mesh in ABAQUS?

The closeup of mesh near the crack tip is given in the attached figure.

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