The reason I thought this is because a very similar square structure without the "cells" added crushes with the results I expect:
That's why I reasoned it would be the contact that's the issue as that is the only difference between the two shapes (exactly the same length and roughly the same...
Well I thought that because the structure should not move like that so it seems like a contact issue. I've varied contact stiffness in this mode a lot and couldn't really get much better. When I did get something better (where a crush happened and no weird movement) the crush stops halfway.
So...
I have already tried general contact but it produced unfavourable results. I think the interactions are not processed correctly if I use that option:
I'm expecting an axial crush but instead I get something like this:
Hello all,
I have a structure like shown in [1] with a shell extrusion geometry like shown in [2]. And this structure will be axially crushed by a rigid plate (not shown).
As you can see, the structure is multi-celled. But defining the interactions of surface-to-surface (rigid plate to beam)...
