Hi
Perhaps running a nonlinear analysis using the static system as here (wrinkling/buckling of plate) – perhaps needs a quasi-static, and or nonlinear stabilization (search in the help manual or here in the forum for these 2 words – they aid with convergence when parts buckle or wrinkle, say for a thin sheet of metal). See here for such an analysis
https://www.youtube.com/watch?app=desktop&v=SHqUajOzEMg
Or use instead LS-Dyna and explicit dynamics for your analysis:
https://www.youtube.com/watch?v=dZw-Sa5AW-I
Hope this helps.
Erik
You are navigating away from the AIS Discovery experience