My FE model consist of Metal plasticity and contacts (node to surface and finite sliding,friction co eff-0.1).With elastic material model,it worked fine but as soon as I incorporate plasticity (hardening=isitropic) some excessive deformation issues are coming up and the run gets diverged.element types I used are both C3D8 and C3D8I.material is aluminium.excessive distortion is coming at contact zone.What should I do to get over of that ?
Please suggest something.
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