Ansys Learning Forum Forums Discuss Simulation LS Dyna Rock drilling Reply To: Rock drilling

Reno Genest
Ansys Employee

Hello,

Do you have element numbers where the negative error happens? You need to troubleshoot it:

 

https://ftp.lstc.com/anonymous/outgoing/support/FAQ/negative_volume_in_brick_element.tips

 

Also, you may have a problem with your material model. I am not a specialist of rock or soil materials. Please create a new post and one of my colleague will be able to help.

 

Reno.