Lsdyna error
Lsdyna error
(OP)
I am running a model in LS-DYNA. It is a simple solid model. I am getting this error
negative volume in brick element # 43049 cycle= 1332
1332 t 3.5964E-04 dt 1.00E+06 write d3plot file
E r r o r t e r m i n a t i o n
How do I solve this?
regards
MP
negative volume in brick element # 43049 cycle= 1332
1332 t 3.5964E-04 dt 1.00E+06 write d3plot file
E r r o r t e r m i n a t i o n
How do I solve this?
regards
MP





RE: Lsdyna error
Is the solid very deformed ...such as foam ?
Could u tell us more...?
Caviac
RE: Lsdyna error
Your description of the problem is brief so it's hard to say what's happening, but hopefully this helps.
RE: Lsdyna error
I have got it working by changing the element formulation for the solid component from reduced Integration formulation(1) to Fully integrated formulation (2).
regards
MP
RE: Lsdyna error
this problem usually incountered with soft materials such as foam *mat 57, change to *mat rigid type 20 or dig deep for proper contact, the maen reson i believe is could be due to adjacent materials of very diiferent stiffness.
hanibal