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Question regarding the crack propagation direction in Abaqus

I am developing a 2D model in Abaqus v13 in order to study the fatigue properties of a plastic material in oxidative atmosphere. I am using the direct cyclic approach and the XFEM technique. When defining the crack propagation direction I can just select:

-direction perpendicular to the element 1-direction

-direction perpendicular to the element 2-direction

-maximum tangential stress criterion

I am wondering how to implement other criteria. I cannot find any specific subroutine able to deal with this. Any help would be greatly appreciated.

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