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I am beginner of UMAT.
I am now modeling the model for uniaxial compression of shape memory alloys based on plasticity model and backward euler method.
My material is in cubic 1*1*1. It seems to be simple problem.
Anyway, I am still not familiar with UMAT and Abaqus.
The problem is I apply load just only in Y-axis and specify the boundary condition as in attached file
I think that it passed the plastic deformation zone and abaqus try to calculate...