紧急求助！！！

dingwei

我现在算热应力，发现最后的应力＝弹性模量×总应变。这个弹性模量是弹性应变时的弹性模量。我不明白我给了应力－应变曲线。为什么算出来的应力不按照应力应变曲线走。
附上我的log文件：
*SET,fy,235E+6  
*SET,exx,2.1E+11
MPTEMP  
MPTEMP,,20,700,800,900,1000
MPDATA,EX,1,,exx,0.25*exx,0.2*exx,0.1548*exx,0.09528*exx
MPTEMP,,1100,1200,1300,1400,1490
MPDATA,EX,1,,0.06925*exx,0.06141*exx,0.05693*exx,0.04099*exx,0.0241*exx
MPTEMP,,1516,1600   
MPDATA,EX,1,,0.00095*exx,0.00095*exx
mp,nuxy,1,0.3   
MPTEMP,,,,,,,,  
MPTEMP,1,700
MPTEMP,2,800
MPTEMP,3,900
MPTEMP,4,1490   
MPTEMP,5,1516   
MPTEMP,6,1600   
UIMP,1,REFT,,,1600  
MPDATA,ALPX,1,,1.56e-5  
MPDATA,ALPX,1,,1.44e-5  
MPDATA,ALPX,1,,2.15e-5  
MPDATA,ALPX,1,,2.15e-5  
MPDATA,ALPX,1,,2.15e-5  
MPDATA,ALPX,1,,2.15e-5  
TB,MISO,1,12,3  
TBTEMP,20   
TBPT,,fy/exx,fy
TBPT,,0.02,fy   
TBPT,,0.15,fy   
TBTEMP,700  
TBPT,,0.085*fy/(0.25*exx),0.085*fy  
TBPT,,0.02,0.2*fy   
TBPT,,0.15,0.2*fy   
TBTEMP,800  
TBPT,,0.07*fy/(0.2*exx),0.07*fy
TBPT,,0.02,0.15*fy  
TBPT,,0.15,0.15*fy  
TBTEMP,900  
TBPT,,0.06*fy/(0.1548*exx),0.06*fy  
TBPT,,0.02,0.11*fy  
TBPT,,0.15,0.11*fy  
TBTEMP,1000
TBPT,,0.04681*fy/(0.09528*exx),0.04681*fy   
TBPT,,0.02,0.09*fy  
TBPT,,0.15,0.09*fy  
TBTEMP,1100
TBPT,,0.0341*fy/(0.06925*exx),0.0341*fy
TBPT,,0.02,0.06*fy  
TBPT,,0.15,0.06*fy  
TBTEMP,1200
TBPT,,0.02341*fy/(0.06141*exx),0.02341*fy   
TBPT,,0.02,0.04*fy  
TBPT,,0.15,0.04*fy  
TBTEMP,1300
TBPT,,0.0170*fy/(0.05693*exx),0.017*fy  
TBPT,,0.02,0.03*fy  
TBPT,,0.15,0.03*fy  
TBTEMP,1400
TBPT,,0.0150*fy/(0.04099*exx),0.0150*fy
TBPT,,0.02,0.02*fy  
TBPT,,0.15,0.02*fy  
TBTEMP,1490
TBPT,,0.008*fy/(0.0241*exx ),0.008*fy   
TBPT,,0.02,0.01*fy  
TBPT,,0.15,0.01*fy  
TBTEMP,1516
TBPT,,0.002*fy/(0.00095*exx ),0.002*fy  
TBPT,,0.02,0.003*fy
TBPT,,0.15,0.003*fy
TBTEMP,1600
TBPT,,0.002*fy/(0.00095*exx ),0.002*fy  
TBPT,,0.02,0.003*fy
TBPT,,0.15,0.003*fy


这就是我加的结构物性参数。
还有，在计算时总是出现这两个警告：
*** WARNING ***                         CP =       8.938   TIME= 10:50:34
Element 1 references undefined MURX or BH table for material 1.         

*** WARNING ***                         CP =       8.938   TIME= 10:50:34
Element 1 references undefined RSVX or PERX for material 1.            

请高手们指点。
着急呀，赶着毕业!

dingwei

在线等呀。请大家指点指点。
谢谢了！！