For the input shown below, my stress results are zero. Why?
Defect 25209 was filed and subsequently corrected in the UP20040628 build of ANSYS 9.0. The problem occurs for the unique combination of SHELL181 KEYOPT(8)=2, real constant thickness input (as opposed to shell section data properties), /ESHAPE, AND PowerGraphics. A related error (reported in Solution 328919) was also corrected in a previous build of ANSYS 9.0. Please refer to that solution for additional details. fini /clear /view,,1,2,3 /plopts,info,1 /prep7 et,1,SHELL181,,,2 keyopt,1,8,2 r,1,0.25 !!! sectype,1,shell, !!! secdata,0.25,1,0,5 mp,ex,1,210000e6 mp,prxy,1,0.30 mp,dens,1,7800 rect,0,20,0,10 esize,1 amesh,all nsel,s,loc,x d,all,all allsel,all fini /solu acel,,,9.81 solve save fini /post1 set,last /eshape,1 !!! /graph,graph plnsol,s,x /wait,0.5 plesol,s,x presol,s /eof The above combination causes data to be lost in 8.1, but if you: 1) comment out KEYOPT(8)=2, OR 2) use section data instead of real constant data, OR 3) comment out /ESHAPE, OR 4) use full graphics, the problem goes away. You just need to do ONE of the above. Also, if you use full graphics (which works) and then comment out the /GRAPH,FULL command and run it again, the right answers are displayed, probably due to something not getting initialized ... . |
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