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
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
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