@paulvazz See "messag" file. You can find the contents like follows, f a i l e d e l e m e n t r e p o r t time= 8.0953E-03number of failed solid el...

@douodouI am using solide elements and the internal energy is normal. Only strain energy in unloading area is nagetive.

@douodou Not Yet. Could you tell me how to adjust the model?

@negativevolumeThank you. Yes, I encountered this in blasting simulation with FE in LS-DYNA. I checked that link and doesn't work for my model. I am u...

What is the density of the cohesive element? For a dynamic simulation, you may need reduce the density of cohesive element to avoid the additional mas...

Hi, I have tried R11 and it works

@negativevolumeThank you so much for replying. And I am sorry for I didn't update this post timely. This issue is addressed by reducing the mass (dens...

@negativevolumeThank you so much for this. I will check it.

@negativevolumeAny tricks for this?

@negativevolume Thank you for your reply. Actually, I think I didn't get an effective means yet. Someone told me a global mesh sensitivity analysis co...

@negativevolume Yeah, I have ever worked on the parametric analysis of friction coefficient with FEM model. Tha peak force and failure mode are influe...

@negativevolume I checked the model and there is an issue with contact settings. The issue is addressed by reducing the friction coefficient between p...

@negativevolume Thanks for the response. As expected, the mesh sensitivity analysis should come to convergence when spacing is 1 mm (it has bee proved...