My HYPER56 model matches my PLANE182 model for principal stress directions,
but the principal strain directions are different (and seem wrong). Is this a bug?
Yes, Defect 22500 was filed and corrected in the BETAUP20040609 build of 9.0. The input below demonstrates the error in the HYPER56 principal strain directions. finish /clear /plopts,info,1 /prep7 et,1,182,2,,2 tb,hyper,1,,2,mooney tbdata,1,0.241,0.488 et,2,56 keyopt,2,5,2 mp,nuxy,2,0.499999 tb,mooney,2 tbdata,1,0.241,0.488 rect,,30,,1 aatt,1,1,1 asel,none rect,,30,5,6 aatt,2,1,2 allsel esize,0.25 mshkey,1 amesh,all eplot finish /solution solcon,on nlgeom,on time,1 nsubst,1e2,1e5,10 outres,all,all nsel,s,loc,x,0 d,all,all nsel,s,loc,x,30 d,all,uy,-15 allsel solve save finish /post1 set,last /graph,full /dscale,,1 /edge,,1 /dist,,4 /focus,,9,0 /vscale,,0.5,1 /title, Stress plotlooks OK for both HYPER56 and PLANE182 ... plvect,s,,,,vect,elem,on,1 /wait,3 /title, Strain plot looks wrong for HYPER56 ... plvect,epto,,,,vect,elem,on,1 . |
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