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Hi i'm getting negative node stiffness error in radioss block . i'm doing simple top load analysis using MAT15 orthotropic material model using shell elements. please let me know how can i resolve
Hi,
Are there any type2 or type7 contacts in your model?
If you have type2, set SPOTFLAG=0
yes i'm using both type 2 and type 7. for type 2 spot flag is 0
with type2 with spot flag set to 0 you still face the same error?
can you also change STFAC in type 7 to 1 and run the analysis?
