Hello, i just started to learn how to use Comsol and I have a question. I started with a simple simulation: Two steel plates on the top and bottom, some flexible material in between. The top plate moves down and deforms the flexible material in middle, the bottom one is fixed.
Problem: While the flexible material stays in fixed contact with the top plate, it is pushed over the edge of the bottom plate. I would like to fix the flexible material also to the down plate. Or to say in a different way, the defomation should be symmetric.
In the attached picture one can see what i mean: while the top interface is fixed, the bottom one changes.
How can I fix that? I used this tutorial as starting point: https://www.comsol.de/video/modeling-hyperelastic-materials-using-comsol-multiphysics
Thanks for your help, Markus
Edit: Under Solid Mechanics, in the Free node, the selection is active - it is "overridden" by the contact. Can this be the problem?