For the input shown below, my stress results are zero. Why?
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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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