link8单元没有轴力，为什么
这是solid45单元与link8单元共用节点的命令流,请高手帮我运行一下/PREP7
et,1,plane42
et,2,solid45
mp,ex,1,2.5e10 !混凝土材料C30
mp,nuxy,1,0.25
mp,dens,1,2.5e3
mp,ex,3,2.5e10 !混凝土材料C30
mp,nuxy,3,0.25
mp,dens,3,2.5e3
ET,3,LINK8
R,1,0, ,
R,1,0.1,0,
BLOCK,0.35,-0.35,0.35,-0.35,0,12,
BLOCK,2.35,2.7,0.35,-0.35,0,10,
TYPE, 2
MAT, 1
REAL, 1
ESYS, 0
SECNUM,
!*
MSHAPE,0,3D
MSHKEY,1
!*
FLST,5,2,6,ORDE,2
FITEM,5,1
FITEM,5,-2
CM,_Y,VOLU
VSEL, , , ,P51X
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
FLST,2,2,6,ORDE,2
FITEM,2,1
FITEM,2,-2
VCLEAR,P51X
VPLOT
FLST,5,8,4,ORDE,8
FITEM,5,1
FITEM,5,3
FITEM,5,6
FITEM,5,8
FITEM,5,13
FITEM,5,15
FITEM,5,18
FITEM,5,20
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,2, , , , ,1
!*
FLST,5,2,6,ORDE,2
FITEM,5,1
FITEM,5,-2
CM,_Y,VOLU
VSEL, , , ,P51X
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
NPLOT
TYPE, 3
MAT, 1
REAL, 1
ESYS, 0
SECNUM,
TSHAP,LINE
!*
FLST,2,2,1
FITEM,2,18
FITEM,2,190
E,P51X
EPLOT
FINISH
我用命令etab,st,ls,1定义单元表，
却得不到轴力，轴向应力为同一颜色，怎么回事呀 多做几次，耐心点。
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