求助各位前辈一个粘结区接触问题，我几天都解决不了

巴赫藏头诗

报错如下：
*** WARNING ***                         CP =      24.726   TIME= 14:35:07
Contact element 2003 (real ID 3) status changes abruptly from           
no-contact -> contact (with target element 602).                        
*** ERROR ***                           CP =      30.997   TIME= 14:35:11
One or more elements have become highly distorted.  Excessive           
distortion of elements is usually a symptom indicating the need for     
corrective action elsewhere.  Try incrementing the load more slowly     
(increase the number of substeps or decrease the time step size).  You  
may need to improve your mesh to obtain elements with better aspect     
ratios.  Also consider the behavior of materials, contact pairs,        
and/or constraint equations.  If this message appears in the first      
iteration of first substep, be sure to perform element shape checking.  
小弟写的命令流如下：
/prep7  
et,1,solid45
keyopt,1,2,1
et,2,solid45
keyopt,2,2,1   
et,3,targe170  
et,4,conta175   
keyopt,4,12,5
   
mp,ex,1,10e3
  
mp,prxy,1,0.38  
mp,ex,2,20e3
mp,prxy,2,0.25
r,1,1
r,2,1
kopen=1e10
tb,czm,3,1,1,cbde   
tbdata,1,,0,,,0
blc4,0,0,1,0.1,1  
blc4,0,0.1,1,0.1,1
blc4,0,-0.1,1,0.1,1   
lsel,s,length,,0.1
lesize,all,0.05
lsel,inve   
lesize,all,,,10
allsel,all

type,1
mat,1   
local,11,0,0,0,0
esys,11
mshape,0,3d
mshkey,2
vmesh,2
type,1
mat,1   
local,12,0,0,1.5,0
esys,12
mshape,0,3d
mshkey,2
vmesh,3
csys,0  
type,2
mat,2  
esys,11
mshape,0,3d
mshkey,2
vmesh,1
!check,esel,err
csys,0
type,4  
mat,3   
real,3  
esel,s,type,,2   
nsle,s
nsel,r,loc,y
nsel,all
esurf
  
csys,12
type,4  
mat,3   
real,3  
esel,s,type,,2   
nsle,s
nsel,r,loc,y,0.1
nsel,all
esurf

csys,0
type,3  
real,3  
rmodif,3,3,-kopen   
rmodif,3,12,-kopen  
esel,s,type,,1  
nsle,s  
nsel,r,loc,y
nsel,all
esurf
csys,12
type,3  
real,3  
rmodif,3,3,-kopen   
rmodif,3,12,-kopen  
esel,s,type,,1  
nsle,s  
nsel,r,loc,y,0.1
nsel,all
esurf
allsel,all
nsel,s,loc,x,1
d,all,all
   
nsel,all
finish  
/solu
csys,0   
esel,s,type,,1  
nsle,s  
nsel,s,loc,y,-0.1
f,all,fy,20
nsel,s,loc,y,0.2
f,all,fy,-20
nsel,all
nsel,s,loc,z,0
f,all,fz,20
nsel,s,loc,z,1
f,all,fz,-20
nsel,s,loc,x,0   
f,all,fx,10
nsel,all
esel,all
nlgeom,on   
time,1  
nsubst,100,100,100  
outres,all,all
solve

求各位前辈帮忙花几分钟给我看看，指导一下