Any methods?

[PedroRyan]

Are there any methods to enhance the convergence of models to ensure the successful completion of the simulation? Looking forward to your response.

[kesavapraba]

Hi. Unfortunately, there is no defined way to improve the convergence. This is because the convergence aspect of nonlinear analysis depends on many factors. Nonetheless, you can try the "Adaptive" time step algorithm in STKO as a first step. The "Tol," "Solution Algorithm," etc., in the analysis settings, can be explored to achieve convergence. I suggest you check your model with linear elastic material properties first and then proceed to the nonlinear analysis if everything seems fine. Also, be aware that successful convergence does not always mean your model is correct; always check whether the results make sense. If you still face the problem, please share a minimal example so that we can help you out.