本人最后用SOLID65试算了一个,结果X方向的应力是1.41MPA,与材料力学法算出来的1.26MPA相差不多,我想应该是对的吧,把命令流贴上来给大家参考一下:
/clear
/FILENAME,example,1
l=5
b=0.5
/prep7
k,1,0,0,0
k,2,l,0,0
k,3,0,b,0
k,4,l,b,0
a,1,2,4,3
vext,all,,,,,0.5
et,1,solid65
mp,ex,1,2.1e10
mp,prxy,1,0.17
mp,alpx,1,1.2e-5
allsel
lsel,s,,,1,7,2
lesize,all,,,10
allsel
lsel,s,,,2,8,2
lesize,all,,,2
allsel
lsel,s,,,9,12
lesize,all,,,2
mat,1
allsel
vmesh,all
/solu
antype,static
allsel
nsel,s,loc,x,0
d,all,ux,,,,,uy,uz,
allsel
nsel,s,loc,x,l
d,all,ux,,,,,uy,uz,
!allsel
!bf,all,temp,20
allsel
nsel,s,loc,y,0
bf,all,temp,-5
allsel
nsel,s,loc,y,b
bf,all,temp,5
allsel
solve |