ansys预应力混凝土小箱梁非线性分析,提示混凝土材料表出现错误? 73

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预应力混凝土简支小箱梁分析,分离式建模,力筋节点与混凝土节点耦合,混凝土材料命令流为:

et,1,solid65$keyopt,1,1,0$keyopt,1,7,1

mp,ex,1,2.1945e10$mp,prxy,1,0.2$mp,dens,1,2551.0204$mp,alpx,1,1e-5 

FC=2.31e7

FT=1.89e6 

tb,concr,1

tbdata,,0.5,0.95,FT,-1

tb,miso,1,,11 

tbpt,,0.0002,0.19*FC

tbpt,,0.0004,0.36*FC

tbpt,,0.0006,0.51*FC

tbpt,,0.0008,0.64*FC

tbpt,,0.0010,0.75*FC

tbpt,,0.0012,0.84*FC

tbpt,,0.0014,0.91*FC

tbpt,,0.0016,0.96*FC

tbpt,,0.0018,0.99*FC

tbpt,,0.002,FC

tbpt,,0.0033,FC

运行后报错:

 *** FATAL ***                           CP =     913.812   TIME= 00:17:46

 The supplied nonlinear material properties produced an incorrect        

 material tangent matrix.  Please check your TB input carefully.  A      

 very small yield stress may cause this failure.

将混凝土修改为弹性(solid45)后可完成分析,请问是混凝土材料表命令流的问题,还是其他方面的问题?如何解决


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默认 最新
凉心姑娘心不凉♬

楼主,请问你分离式建钢筋的时候混凝土是和钢筋共节点吗

2018年7月19日
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