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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › No gravity effect with *LOAD_BODY_Z in LS Dyna › Reply To: No gravity effect with *LOAD_BODY_Z in LS Dyna

November 20, 2024 at 5:54 am
Dennis Chen
Subscriber

 

 

I don’t know for sure but I suspect you need to apply the gravity load during dynamic relaxation and not just in normal phase alone.   given SIDR=0 in your define_curve, maybe try to include DR and see if your model behaves correctly.

I have to say, I can’t 100% exactly follow your model just through text by reading it once so apologize if DR wasn’t the reason. 

 

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