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在做《ANSYS结构有限元高级分析方法与范例应用》(尚晓峰 水利水电出版社)中的一道例题。自定义混凝土本构关系如下:
MPDATA,EX,2,,2.55E10 !定义混凝土线弹性参数,即弹性模量
MPDATA,PRXY,2,,0.3
TB,KINH,2,1,8,0 !定义混凝土应力应变(本构模型)关系
TBTEMP,0
TBPT,,0.0001,0.936E6
TBPT,,0.0003,2.664E6
TBPT,,0.0006,4.896E6
TBPT,,0.0009,6.696E6
TBPT,,0.0012,8.064E6
TBPT,,0.0016,9.216E6
TBPT,,0.002,9.6E6
TBPT,,0.0033,9.6E6
TB,CONC,2,1,9, !定义混凝土的破坏参数
TBDATA,,0.3,0.55,1.5E6,-1,0,0
在执行SOLVE后出现下列ERROR:
For material 2 at temperature 0, the initial slope of the stress-strain
curve based on the TB,KINH table ( 9.36E+09 ) is less than EX (
2.55E+10 ).
它说定义的混凝土塑性应力应变曲线中小于弹性模量!不知道怎么回事!
请各位大侠指导一二! |
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