Hi
I am trying to simulate the impact of a rigid ball on an aluminum target both having solid elements (ELFORM = -1). Simulation looks good and gives desired results. However, there is one element that keeps on increasing in size without being deleted. I am attaching a picture of the same. I am unable to understand why only one element is causing this issue. I have tried changing ELFORM and hourglass parameters. But they don't seem to work out.
Any help to resolve this issue is appreciated. Thank you so much.
Eroding contact will give better results . Also sometimes , if your mesh is coarse , these kind of behavior arises. Try changing the contact algorithm with increased BSORT value .
Another tip if you are dealing with something like this, is you can use *Mat_add_erosion, reference the material that is having the element issue, and set a maximum strain threshold which will delete any elements that cross it. You can set something reasonable that will delete any elements with shooting nodes like you are showing.