hi,
recently,i want to write a delamination law using vumat,but coh3d8 element with a traction-separation has s33,s13,s23.in vumat,stressold(nblock,ndir+nshr),i don't kown if s33 is correspond to stressold(nblock,3),and if s23 is correspond to stressold(nblock,5),
i hope someone can help me.
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