Can a CMS superelement be prestressed?
Yes. Please see the following example: fini /clear /filnam,part1 ! Name files for part 1 /prep7 et,1,185,,2 mp,ex,1,1e7 mp,nuxy,1,0 mp,dens,1,.0003 mp,alpx,1,1e-4 block,,9.9,,1,,1 block,10,20,,1,,1 esize,1 vmesh,all et,2,170 et,3,174 mp,mu,3,.3 nsel,s,loc,x,9.9 type,2 esurf type,3 mat,3 nsel,s,loc,x,10.0 esurf nsel,all nsel,s,loc,x,0 nsel,a,loc,x,20 d,all,all nsel,all !!! tref,0 !!! tunif,55 fini /solu inistate,define,,,,,-60000 kbc,0 outres,all,1 nsub,10 time,1 pstres,on ematwrite,yes solve fini /solu antype,substr ! CMS generation pass ddele,all,all nsel,s,loc,x,8,9 m,all,all nsel,all pstres,on seopt,part1,2 ! Stiffness and mass matrices cmsopt,fix,5 ! 5 modes by fixed interface solve ! Generation save ! Save part database finish /post1 set,1,1 plns,u,sum ! contact not satisfied and deleted constraints still there |
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