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本帖最后由 darkblue2009 于 2011-3-13 09:24 编辑
小弟最近做土的固结问题,荷载为200kpa,共有5层土,土的参数分别为:
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MATERIAL MOHR-COULOMB NAME=1 E=1.50000000000000E+07,
NU=0.200000000000000 PHI=7.50000000000000 PSI=0.00000000000000,
COH=13000.0000000000 TCUT=1.00000000000000E+10,
DENSITY=18.3000000000000 DILATION=YES MDESCRIP='first'
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MATERIAL MOHR-COULOMB NAME=2 E=1.25000000000000E+07,
NU=0.200000000000000 PHI=14.1000000000000 PSI=0.00000000000000,
COH=14000.0000000000 TCUT=1.00000000000000E+10,
DENSITY=19.2000000000000 DILATION=YES MDESCRIP='second'
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MATERIAL MOHR-COULOMB NAME=3 E=3.65000000000000E+07,
NU=0.200000000000000 PHI=13.5000000000000 PSI=0.00000000000000,
COH=40000.0000000000 TCUT=1.00000000000000E+10,
DENSITY=19.9000000000000 DILATION=YES MDESCRIP='thrid'
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MATERIAL MOHR-COULOMB NAME=4 E=6.00000000000000E+07,
NU=0.200000000000000 PHI=13.7000000000000 PSI=0.00000000000000,
COH=46000.0000000000 TCUT=1.00000000000000E+10,
DENSITY=19.4000000000000 DILATION=YES MDESCRIP='fouth'
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MATERIAL MOHR-COULOMB NAME=5 E=6.00000000000000E+07,
NU=0.200000000000000 PHI=13.3000000000000 PSI=0.00000000000000,
COH=36000.0000000000 TCUT=1.00000000000000E+10,
DENSITY=19.1000000000000 DILATION=YES MDESCRIP='wu ceng'
荷载分40步施加。采用位移收敛准则,且数值已经设定为0.2。运算到第14步之后,迭代15次仍不收敛。
请教高手,问题出现在那里?????谢谢大家 |
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