Hi ashish,nnmany thanks for youe feedback.nI can run the soultion in workbech if consider drucker prager model? I am trying it in apdl. nif possible please answer these questions.nncan i import material model from apdl to workbench ?nI have imported the whole thing from worknech to apdl and if change the material proreties in apdl, colud get the results ? nplease give your sugesstions on drucker prager model in apdl and workbench.nnkind regards,nNaveen mn