My nonlinear solution isn't converging

georgeselkassoufgeorgeselkassouf Member Posts: 1

I'm modeling a concrete cylinder under displacement control. The material used is Concrete NL and I'm running a nonlinear model. The bottom is fully restrained and I used KINH APDL commands to input my stress-strain values. I'm also using 40 steps for the analysis in static structural and a default mesh size with a refinement. I tried turning large deformastions on and changing the mesh, adding sweep method and sizing but it still didn't converge. I attached some pictures below, any help would be appreciated. Thanks!


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