求助-热应力分析，请哪位大侠给予指点啊
图中为混凝土圆环的干缩应力图，但是现在想在混凝土环的内表面加入一个刚环，即混凝土环收缩变形时受到刚环的约束，从而产生应力。请问：哪位大侠知道刚环与混凝土环的界面处如何处理？
这得考虑两中耦合了：1.刚环和混凝土的耦合。2.结构与热应力耦合 钢环与混凝土界面如何耦合？我试过总是不对，麻烦大侠说详细些!:) 表面粘结可不可以取代耦合啊
finish
/clear
/title, yuanhuan
/filename,yuanhuankangliefenxi39,1
/prep7
et,1,plane55
KEYOPT,1,3,1
*Set,h,1
*set,d1,8.64e-5
*set,fck,39
*set,dsat,10*d1/(fck-8)
*set,dd,dsat*(0.05+0.95/(1+((1-h)/0.2)**15))
*set,midu,2400
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mp,kxx,1,dd*dsat*midu
mp,c,1,dsat
csys,1
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lesize,1,,,60
lesize,3,,,60
lesize,2,,,20,5
lesize,4,,,20,5
amesh,all
allsel
finish
/solu
antype,trans
time,30
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deltim,0.4,0.4,1,on
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kbc,1
TUNIF,1
lsel,s,,,1
nsll,s,1
sf,all,conv,2.07e-3,0.6
allsel
eqslv,jcg
solve
finish
/post1
set,last
plnsol,temp
/COM,Structural
/prep7
ddele,all,temp
ETCHG,TTS
et,2,plane42
KEYOPT,1,3,1
KEYOPT,2,3,1
MP,EX,1,1e3
MP,PRXY,1,0.167
mp,alpx,1,1e-4
MP,EX,2,3.4e5
MP,PRXY,2,0.3
csys,1
cyl4,0,0,0.1425,0,0.1525,90
asel,s,area,,1
type,1
MAT,1
ALLSEL
asel,s,area,,2
TYPE,2
MAT,2
allsel
aglue,all
lesize,7,,,60
lesize,9,,,2
lesize,10,,,2
allsel
type,2
amesh,all
finish
/SOL
ANTYPE,0
asel,s,,,1
nsla,s,1
LDREAD,TEMP,,,,,yuanhuankangliefenxi39.rth
lsel,s,,,2
nsll,s,1
D,ALL,UX,0
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D,ALL,UX,0
lsel,s,,,4
nsll,s,1
D,ALL,UY,0
lsel,s,,,10
nsll,s,1
D,ALL,UY,0
allsel
lsel,s,,,7
nsll,s,1
D,ALL,ALL
allsel
SOLVE
FINISH
/post1
plnsol,s,1
PATH,RADIAL,2
PPATH,1,,0.1525
PPATH,2,,0.2125
pdef,S1,s,1,AVG
plpath,s1
我的命令流如下，运行时应力曲线总是不对，请大侠给指点
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