[求助]帮忙诊治我的命令流！！！1

qmsnow668

我今天算了一个模型，是一个立方体块，受有变化的压力作用，但是算了一部分就自动退出了ansys,请求高手指点！！！
命令流如下：
/COM,  Structural   
!*  
/PREP7  
!*  
ET,1,SOLID65
!*  
keyopt,1,7,1
mp,ex,1,7.37e3  
mp,prxy,1,0.27  
tb,concr,1  
tbdata,0.5,1.0,0.25,4.35
k,1,0,0,0   
k,2,0,30,0  
k,2,0,30,0  
k,3,30,30,0
k,4,30,0,0  
k,5,0,0,60  
k,6,0,30,60
k,7,30,30,60
k,8,30,0,60
lstr,1,2
lstr,2,3
lstr,3,4
lstr,4,1
lstr,5,6
lstr,6,7
lstr,7,8
lstr,8,5
lstr,1,5
lstr,2,6
lstr,3,7
lstr,4,8
al,1,2,3,4  
al,5,6,7,8  
al,2,6,10,11
al,4,8,9,12
al,3,7,11,12
al,1,5,9,10
va,1,2,3,4,5,6  
lesize,1,,,30   
lesize,2,,,30   
lesize,3,,,30   
lesize,4,,,30   
lesize,5,,,30   
lesize,6,,,30   
lesize,7,,,30   
lesize,8,,,30   
lesize,9,,,60   
lesize,10,,,60  
lesize,11,,,60  
lesize,12,,,60  
mshape,0,3d
mshkey,1
vmesh,all   
da,1,all
da,2,ux
da,2,uy
nsel,s,node,,5,8,1  
sffun,pres,sz(1)
*dim,sz,arry,11
*SET,sz(1),0.4,0.8,1.2,1.4,1.6,2.0,2.4,2.8,3.2,3.6,4.0  
sffun,pres,sz(1)
sf,all,pres,0.4
nsubst,25   
autots,1
outres,all  
pred,on
time,50
ncnv,2  
lnsrch,1
FINISH