钢筋混凝土梁加荷载求解无法收敛,大神帮忙看看
我所用的是ANSYS14.0 ,其中miso不支持下降段,我就将最后设为直线,只研究弹塑性。。但出现无法收敛和大位移问题。。。实在不知道怎么解决,哪个大神帮忙看下,怎么改。。谢啦命令如下:
/PREP7
!1.定义单元与材料属性
et,1,solid65,,,,,,,1
et,2,link8
mp,ex,1,1358
mp,prxy,1,0.2
fc=14.
ft=1.43
tb,concr,1
tbdata,,0.5,0.95,ft,-1
tbpt,,0.0002,fc*0.19
tbpt,,0.0004,fc*0.36
tbpt,,0.0006,fc*0.51
tbpt,,0.0008,fc*0.64
tbpt,,0.0010,fc*0.75
tbpt,,0.0012,fc*0.84
tbpt,,0.0014,fc*0.91
tbpt,,0.0016,fc*0.96
tbpt,,0.0018,fc*0.99
tbpt,,0.002,fc
tbpt,,0.0033,fc
mp,ex,2,2.0e
mp,prxy,2,0.3
tb,biso,2
tbdata,,300,
pi=acos(-1)
r,1
r,2,0.25*pi*22*22
R,3,0.25*pi*10*10
!2.创建几何模型
BLC4,,,150,300,2000
*DO,I,1,1
WPOFF,,,100
VSBW,ALL
*ENDDO
WPCSYS,-1
WPOFF,,,95
VSBW,ALL WPOFF,,,100
VSBW,ALL
WPCSYS,-1
WPROTA,,-90
WPOFF,,,30
VSBW,ALL
WPOFF,,,240
VSBW,ALL
WPCSYS,-1
WPOFF,30
WPROTA,,,90
VSBW,ALL
WPOFF,,,45
VSBW,ALL
WPOFF,,,45
VSBW,ALL
WPCSYS,-1
!3.划分钢筋网格
ELEMSIZ=50
LSEL,S,LOC,X,30
LSEL,R,LOC,Y,30
LATT,2,2,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,S,LOC,X,75
LSEL,R,LOC,Y,30
LATT,2,2,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,S,LOC,X,120
LSEL,R,LOC,Y,30
LATT,2,2,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,S,LOC,X,30
LSEL,R,LOC,Y,270
LATT,2,3,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,S,LOC,X,120
LSEL,R,LOC,Y,270
LATT,2,3,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,S,TAN1,Z
LSEL,R,LOC,Y,30,270
LSEL,R,LOC,X,30,120
LSEL,U,LOC,X,75
LSEL,U,LOC,Z,0
LSEL,U,LOC,Z,2000
LSEL,U,LOC,Z,950
LSEL,U,LOC,Z,1050
LATT,2,3,2
LESIZE,ALL,ELEMSIZ
LMESH,ALL
LSEL,ALL
!4.划分混凝土网格
VATT,1,1,1
MSHKEY,1
ESIZE,ELEMSIZ
VMESH,ALL
ALLSEL,ALL
!5.施加荷载和约束
LSEL,S,LOC,Y,0
LSEL,R,LOC,Z,100
DL,ALL,,UY
LSEL,S,LOC,Y,0
LSEL,R,LOC,Z,1900
DL,ALL,,UY
DK,KP(0,0,100),UX,,,,UZ
DK,KP(0,0,1900),UX
P0=180000
Q0=P0/150/100
ASEL,S,LOC,Z,950,1050
ASEL,R,LOC,Y,300
SFA,ALL,1,PRES,Q0
ALLSEL,ALL
FINISH
!6.求解控制设置与求解
/soluantype,0nsubst,80outres,all,allautos,onneqit,50cnvtol,u,,0.015solvefinish
呵呵,无语了。 武汉游侠 发表于 2013-11-27 16:33
呵呵,无语了。
大神,什么意思。。。:L 这个不是ansys版块嘛
武汉游侠 发表于 2013-11-28 18:50
这个不是ansys版块嘛
额···不好意思。。:funk: 去ansys 版问问吧,另外 你也没解释清楚你的问题所在。 leejg 发表于 2013-11-30 20:30
去ansys 版问问吧,另外 你也没解释清楚你的问题所在。
好的,主要是我也不知道问题所在。。囧啊 你的问题解决了吗?我也遇到了这个问题,麻烦你加我QQ 771532224,详聊,谢谢了
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