Mesh convergence on Explicit dynamics
ive been testing trying to fine a suitable mesh size for the structure that i'm simulating however when i change the mesh size, the equivalent maximum stress tend to vary a lot, instead of decreasing linearly when mesh becomes coarse and increasing up till a limit when mesh becomes fine
What ive been doing so far is using parametize set to parametize the mesh while obtaining maximum equivalent stress within the structure
meanwhile my simulation is an impact simulation of an Arrowhead auxetic
Why is this so? is there a limit to how fine a mesh can be before it gives invalid results? what is the explanation behind it ? is there a way to fix this and how do i find the perfect mesh size in such a scenario?