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求助:蠕变问题

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发表于 2006-12-17 21:47:56 | 显示全部楼层 |阅读模式 来自 天津
我的模型是关于封装件的焊点的热循环情况下的蠕变。我计算时设置的参数都是关于蠕变的 怎么后处理时,仅仅能得到其它的应力应变情况,而想要的蠕变却不能得到,各位高手能指点一下吗 小弟万分感谢!
命令流如下:/PREP7  
ET,1,SOLID45
ET,2,SOLID185   
MP,EX,1,3.5E11  
MP,PRXY,1,0.3   
MP,ALPX,1,7.75E-6   
MP,KXX,1,10
MP,EX,2,7E10
MP,PRXY,2,0.3   
MP,ALPX,2,17E-6
MP,KXX,2,390
MPTEMP,1,-40,-30,-20,-10,0,10   
MPTEMP,7,20,30,40,50,60,70  
MPTEMP,13,80,90,100,110,125
MP,EX,3,5.49E10,-6.714E7,-0
MP,EX,3,5.49E10,-6.714E7,-0.058E6   
MP,PRXY,3,0.4   
MP,ALPX,3,19.8E-6   
MP,KXX,3,73
TB,CREEP,3,,,8  
TBDATA,1,277984,0.02447E-6,6.41,0.56 第八种蠕变模型
block,0,12,0,4.8,0,1
WPOFF,0.4,0.4,1
BLOCK,0,0.8,0,0.8,0,0.01
SAVE
VGEN,3,2,,,,1.6,
WPOFF,0,0,0.01  
BLOCK,0,0.8,0,0.8,0,0.095   
VGEN,3,5,,,,1.6,
WPOFF,0,0,0.095
BLOCK,0,0.8,0,0.8,0,0.01
VGEN,3,8,,,,1.6,
WPOFF,-10.8,-0.4,0  
block,0,12,0,4.8,0,1
SAVE
wpoff,0,0,0.1   
VSBW,11  
VGLUE,12,13
WPOFF,0,0,-0.315
VSBW,1  
VGLUE,11,14
WPAVE,0,0,0
WPROTA,0,0,-90  
VSBW,12
VSBW,13
VGLUE,12,16
VGLUE,1,15  
SAVE
WPOFF,0,0,-1.6  
VSBW,11
VSBW,14
VGLUE,13,17
VGLUE,11,18
SAVE
WPOFF,0,0,-1
VSBW,17
VSBW,11
VGLUE,14,19
VGLUE,17,20
SAVE
WPOFF,0,0,3.6   
VSBW,1  
VSBW,12
VGLUE,11,21
VGLUE,1,22  
WPROTA,0,0,90   
WPAVE,0,0,0
VSEL,S,LOC,Z,0,1
VATT,1,,1,  
VSEL,S,LOC,Z,1,1.01
VATT,2,,1,  
VSEL,S,LOC,Z,1.01,1.1005
VATT,3,,2,  
VSEL,S,LOC,Z,1.1005,1.1105  
VATT,2,,1,  
VSEL,S,LOC,Z,1.1105,2.1105  
VATT,1,,1,  
VSEL,S,LOC,Z,0,1
vsel,r,loc,x,2.6,12
ESIZE,0.8   
VSWEEP,ALL  
VSEL,S,LOC,Z,0,1
vsel,r,loc,x,1.6,2.6
ESIZE,0.5   
VSWEEP,ALL  
VSEL,S,LOC,Z,0,0.9  
vsel,r,loc,x,0,1.6  
ESIZE,0.3   
VSWEEP,ALL  
VSEL,S,LOC,Z,0.9,1.0
vsel,r,loc,x,0,1.6  
ESIZE,0.15  
VSWEEP,ALL  
VSEL,S,LOC,Z,1.0,1.1105
ESIZE,0.05  
VSWEEP,ALL  
VSEL,S,LOC,Z,1.1105,1.2105  
vsel,r,loc,x,0,1.6  
ESIZE,0.15  
VSWEEP,ALL  
VSEL,S,LOC,Z,2.1105,1.2105  
vsel,r,loc,x,0,1.6  
ESIZE,0.3   
VSWEEP,ALL  
VSEL,S,LOC,Z,2.1105,1.1105  
vsel,r,loc,x,0,-1   
ESIZE,0.5   
VSWEEP,ALL  
VSEL,S,LOC,Z,2.1105,1.1105  
vsel,r,loc,x,-10.4,-1   
ESIZE,0.8  
VSWEEP,ALL  
da,1,UZ,0   
DA,120,UZ,0
DA,2,UZ,0   
DA,110,UZ,0
FINISH  
/SOL
ANTYPE,STATIC   
NEQIT,25
OUTRES,ALL,2
NLGEOM,0N   
TUNIF,125   
TREF,125
SOLCONTROL,ON,0,
CNVTOL,F,,0.01,2,1.0
LNSRCH,1
NSEL,ALL
ESEL,ALL
DELTIME,6   
TIME,360
BFE,ALL,TEMP,125
KBC,1   
SOLVE
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