Why kinematic energy so high relative to internal energy?

richardP · 2024-10-27T14:16:20Z

Hello everyone, I am trying to run a quasi-static simulation crushing a tube between two flat, rigid plates. One plate is standing still, the other displacement driven (7 mm in 0.1 s). I would have expected that it still counts as quasi-static and the kinetic energy is much lower than internal energy, but that is not the case, see attached plots. I uploaded a course version of my model as reference. the original mesh is finer. Has anyone a clue what I am doing wrong? I also tried to run the same simulation with implicit solver and 7 mm in 10 s as displacement. It took me a while until the simulation finished without error, but the results are just "different", and i cant tell which is more wrong or right. However, in implicit the energy ratio drops just after start of the simulation from 1 to 0, which I do not understand as well. A clue here would be much appreciated aswell. Kind regards, Richard