How to use membrane elements in Workbench
I am a naive user, trying to model a circular pre-strained membrane using Ansys Workbench. I could model the circular membrane using a surface body, then using the static structural and modal analysis to find the effects of external pressure on the fundamental frequency. Everything is fine, but I found that the workbench uses shell181 elements, which, by default, incorporates bending stiffness in the analysis. I want to remove the effects of bending stiffness.
I searched for that, and I found that I can add commands to the model as
However, then running the model leads to a solver pivot error.
When I also tried to use other shell elements other than the default shell181, like shell41 as
it ends in the same error. What should I do?