Ansys Assistant will be unavailable on the Learning Forum starting January 30. An upgraded version is coming soon. We apologize for any inconvenience and appreciate your patience. Stay tuned for updates.

Ansys Learning Forum Forums Discuss Simulation LS Dyna Negative Volume Reply To: Negative Volume

Jim Day
Ansys Employee
You might have a more stable simulation if you reduce the time step scale factor TSSFAC in *CONTROL_TIMESTEP. What solid element formulation are you using (ELFORM in *SECTION_SOLID) and what is the hourglass control type and hourglass coefficient?
[bingo_chatbox]