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加筋板轴向压缩时的强度分析的边界条件有哪些啊?下面的命令流总有错误
finish
/clear,start
/cwd,e:\ansys
/filname,t4300-815
/title,t4300-815
/prep7
!定义参数
a=4.3
b=0.815
t=0.018
hw=0.463
tw=0.011
bf=0.172
tf=0.017
!定义材料参数
mp,ex,1,2.06e11
mp,prxy,1,0.3
sigamay=3.15e+8
!定义单元类型
et,1,shell181
r,1,t,,,,,,
r,2,tw,,,,,,
r,3,tf,,,,,,
!建立几何模型
k,1,0,b
k,2,a,b
k,3,a,0
k,4,0,0
real,1
a,1,2,3,4
k,5,0,b/2,0
k,6,0,b/2,hw
k,7,a,b/2,hw
k,8,a,b/2,0
real,2
a,5,6,7,8
k,9,0,b/2-bf/2,hw
k,10,0,b/2+bf/2,hw
k,11,a,b/2+bf/2,hw
k,12,a,b/2-bf/2,hw
real,3
a,9,10,11,12
!网格划分
asel,s,loc,x,0,a
asel,r,loc,y,0,b
asel,r,loc,z,0
aatt,1,1,1
mshkey,1
esize,a/10
amesh,all
asel,s,loc,x,0,a
asel,u,loc,z,0
asel,u,loc,z,hw
aatt,1,2,1
mshkey,1
esize,a/10
amesh,all
asel,s,loc,x,0,a
asel,r,loc,y,b/2-bf/2,b/2+bf/2
asel,r,loc,z,hw
aatt,1,3,1
mshkey,1
esize,a/10
amesh,all
!边界条件
lsel,s,loc,x,0
dl,all,all,uz,0
dl,all,all,rotx,0
dl,all,all,rotz,0
allsel,all
lsel,s,loc,x,a
dl,all,all,uz,0
dl,all,all,rotx,0
dl,all,all,rotz,0
allsel,all
lsel,s,loc,y,0
dl,all,all,uz,0
dl,all,all,roty,0
dl,all,all,rotz,0
allsel,all
lsel,s,loc,y,b
dl,all,all,uz,0
dl,all,all,roty,0
dl,all,all,rotz,0
allsel,all
nsel,s,loc,x,0
nsel,r,loc,y,b
d,all,ux,0
d,all,uy,0
d,all,uz,0
allsel,all
nsel,s,loc,x,0
nsel,r,loc,y,0
d,all,ux,0
d,all,uz,0
allsel,all
nsel,s,loc,x,0
nsel,r,loc,y,b/2-bf/2
nsel,r,loc,z,hw
d,all,ux,0
d,all,uy,0
d,all,uz,0
nsel,s,loc,x,0
nsel,r,loc,y,b/2+bf/2
nsel,r,loc,z,hw
d,all,ux,0
d,all,uy,0
d,all,uz,0
nsel,s,loc,x,a
cp,2,ux,all
allsel,all
nsel,s,loc,x,0
f,all,fx,1
allsel
nsel,s,loc,x,a
f,all,fx,-1
allsel
finish
!求解
/solu
antype,static
pstres,on
solve
finish
/solu
antype,buckle
bucopt,lanb,1
mxpand,1
solve
finish
!后处理
/post1
set,first
pldisp,1
finish
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