I know that I can easily get the equivalent von-mises stress. I am talking about the yield criteria. For elastoplastic material, there is an algorithm called the Elastic Predictor and Plastic Corrector that is employed at each iteration for the incremental boundary value problem. In order to initiate the plastic corrector, the algorithm checks for the plastic state using the yield criteria. Here, if I choose von-mises or Tresca both might start the plastic corrector algorithm at different load increment resulting in a difference in the solution near the yield point depending on the yield criteria that I choose.nAnd this is what I am trying to compare for complex structures.nn