Solid65单元对钢筋混凝土的模拟有三种方式:分离式、整体式、组合式,Solid65的参数设置和屈曲准则、收敛准则、破坏准则设置比较复杂,下面的例子只是整体式分析的典型命令流。
下面的命令流来源是: www.luxinzheng.net,本人只是推荐,这里做说明。
/prep7
ET,1,SOLID65
!*
KEYOPT,1,1,0
KEYOPT,1,5,0
KEYOPT,1,6,0
KEYOPT,1,7,1
!实参数1:未配筋
R,1,2, , , ,2, ,
RMORE, , ,2, , , ,
!*
!实参数2:X方向配筋
R,2,2,.05, , ,2, ,
RMORE, , ,2, , , ,
!*
!*
!材料属性
!混凝土基本材料属性
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,30e9
MPDATA,PRXY,1,,.2
!屈服准则
TB,MISO,1,1,5,
TBTEMP,0
TBPT,,0.0005,15e6
TBPT,,0.001,21e6
TBPT,,0.0015,24e6
TBPT,,0.002,27e6
TBPT,,0.003,24e6
!破坏准则
TB,CONC,1,1,9,
TBTEMP,0
TBDATA,,.5,.9,3e6,30e6,,
TBDATA,,,,1,,,
MPTEMP,,,,,,,,
MPTEMP,1,0
!钢材基本属性
MPDATA,EX,2,,200e9
MPDATA,PRXY,2,,.27
!屈服准则
TB,BISO,2,1,2,
TBTEMP,0
TBDATA,,310e6,2e9,,,,
!建立模型
K,1,,,,
K,2,3,,,
KGEN,2,1,2 ,1 , ,.05, , ,0
KGEN,2,1,2 ,1 , ,0.5, , ,0
A,1,2,4,3
A,3,4,6,5
VEXT,1,2 ,1 ,0,0,.2,,,,
VSEL, , , , 1
VATT, 1, 2, 1, 0
VSEL, , , , 2
VATT, 1, 1, 1, 0
LSEL, all
LESIZE,all,.2, , , , , , ,1
!*
VSEL, all
!*
VMESH,all
!*
/SOLU
!*
ANTYPE,0
!*
!力二范数收敛,2%
CNVTOL,F, ,0.02,2, ,
!*
!加约束
D,3, , , , , ,UY, , , , ,
D,35, , , , , ,UY, , , , ,
D,16, , , , , ,UY, , , , ,
D,48, , , , , ,UY, , , , ,
D,35, , , , , ,ALL, , , , ,
D,48, , , , , ,UZ, , , , ,
!加竖向位移荷载
D,75, ,-0.01, , , ,UY, , , , ,
D,123, ,-0.01, , , ,UY, , , , ,
!加载最少分为20步
NSUBST,20,1000000,20
!输出每步结果
OUTRES,ALL,1
!每步至少迭代25次
CUTCONTROL,NOITERPRED,1
SOLVE
[ 本帖最后由 lzlrz2001 于 2007-7-27 16:35 编辑 ] |