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

September 20, 2023 at 2:18 pm
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?