I am trying to simulate what stresses there would be on a steel box with a steel frame, when a 15psi force is acting on it. The three long bars on the top are attached to the lid from the outside, and the lid is supported by the 5 top pieces of the frame (the two long pieces and the three shorter ones)
The simulation ran perfect, but as soon as I add a rubber gasket between the frame and the lid, either the following happens, or the simulation ignores the center support completely and deforms as if it weren't there, even though the universal contact is set to bonded.
I have tried various conacts, but dont know all that much about simulation, and have absolutely no idea what the issue could be. Any help or tips would be highly appreciated.