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Hey, I tried to do to NL elastic Simulation. (followed the steps from the video https://altairuniversity.com/analysis/structural/nonlinear/nlstat-tutorial-pressure-load-on-a-chair/) but I don't get convergence. The model works actually with elastic material law. So I don't know what I have to change. Can someone have a look, please?) Furthermore, I just have the "yield strength", "ultimate strength" and "elongation at break". so actually it would be enough to put a bilinear material law. is that somehow possible or is there just the way with the table?