@kennedy Okay, I understand now. This is probably obvious, but what type of element are you using to test the materials? I'm pretty sure shell and bea...

@dendencel It's not a change in a value but a change in the file that LS-Dyna is using as the solver. If you are using LS-Dyna on a local computer, yo...

@csuznxg Great to hear you got it figured out!

Hi @dendencel, Try to use a version of LS-Dyna with double precision instead of single. This will be denoted by a "_d_" instead of "_s_" in the sol...

Hey @csuznxg, I apologize for not helping with this. I was just reading a paper about characterizing soft tissue using physical material tests thro...

@kennedy What are you trying to match to when you assign a dynamic viscosity? I would not think it would match the built-in *Mat_null material bec...

@charu ah I see. Did you look into using something else like Ansys or Abaqus?

@nielsdyna I'm curious if the suggestion by @geardyn-1 works, as I was not aware of this.

@manoz21 Got it. Have you tried ELFORM=-1 or -2? These are both fully integrated but may reduce your shear locking issue. This link will download a .p...

@manoz21 Ah sorry I got mixed up and was thinking about shell element ELFORM=2. I meant ELFORM=1 for the solid elements. Have you tried that with that...

@manoz21 Fully integrated hexa elements are prone to shear locking. Try ELFORM = 2 and then use a hourglass control of 5

@pjay Yeah I was just thinking that your long simulation times were probably a product of small debris shell elements, and to try mass scaling to incr...

@venkateshmd I'm following up with old topics and this seemed like something that others would find useful. I apologize for not following up with you ...

@csuznxg I can only imagine that LS-Opt would be the way to go. Here is something that may or may not be helpful for you in the future. I've never use...