请教wuhanwangtao ,有一块混凝土板,是用来加固边坡的.板为十字型(计算时取了1/4),内有钢筋网,其中有一根钢筋弯出来作为拉环(上面拴一拉筋).下面是我的命令流,但计算结果中,无论载荷怎样小,拉环都将变成一个很奇怪的形状.不知为什么,请帮忙指点一下.
/title,Analysis of the PLANE(1/4)
HH1=0.3
HH2=0.3
H1=0.05
H2=0.2
H3=0.1
H4=0.17
H5=0.08
WW1=0.2
WW2=0.1
W1=0.03
W2=0.12
W3=0.15
BB=0.12
B=0.03
D=0.01
D1=0.01
PP=300
/PREP7
!*单元类型,材料参数
ET,1,LINK8
ET,2,SOLID65
KEYOPT,2,7,1
R,1,3.1416*D*D/4
R,3,3.1416*D1*D1/4
R,2,2,0.01,0.01,0.03
MP,EX,1,2e11
MP,NUXY,1,0.3
MP,EX,2,3E10
MP,NUXY,2,0.19
MP,DENS,2,25E3
TB,CONCR,2
TBDATA,1,0.9,1,1.8E6,40E6
!*建模
!*生成体
K,1,
K,2,,HH1+HH2
K,3,WW1,HH1+HH2
K,4,WW1,HH1
K,5,WW1+WW2,HH1
K,6,WW1+WW2,
l,1,2
L,2,3
L,3,4
L,4,5
L,5,6
L,6,1
AL,1,2,3,4,5,6
ASEL,ALL
VEXT,ALL, , ,0,0,BB,,,,
/VIEW, 1 ,1,1,1
/ANG, 1
/REP,FAST
!*/PNUM,KP,1
!*/PNUM,LINE,1
!*/PNUM,AREA,1
!*/PNUM,NODE,1
!*/PNUM,ELEM,1
!*划分成小体,并划分单元
WPOFF,W3,H5,B
WPRO,,,90
VSBW,ALL
WPRO,,,-90
VSBW,ALL
WPRO,,-90
VSBW,ALL
WPOFF,W2,,H4
VSBW,ALL
WPRO,,,-90
VSBW,ALL
WPOFF,H3,,W2
WPRO,,,90
VSBW,ALL
WPOFF,,,H2
VSBW,ALL
VPLOT
WPCSYS,-1,0
WPRO,,,90
FLST,2,2,8
FITEM,2,0.15,0.3,0.12
FITEM,2,0.15,0.35,0.12
CIRCLE,P51X, , , ,180, ,
WPCSYS,-1,0
!*生成钢筋单元
TYPE,1
REAL,1
MAT,1
!*竖直钢筋
LSEL,S,LOC,X,0
LSEL,A,LOC,X,0.15
LSEL,A,LOC,X,0.27
LSEL,R,LOC,Y,0,0.08
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,2
LMESH,ALL
ALLS
LSEL,S,LOC,X,0
LSEL,A,LOC,X,0.15
LSEL,A,LOC,X,0.27
LSEL,R,LOC,Y,0.08,0.25
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,4
LMESH,ALL
ALLS
LSEL,S,LOC,X,0
LSEL,R,LOC,Y,0.25,0.35
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,4
LMESH,ALL
ALLS
LSEL,S,LOC,X,0.27
LSEL,R,LOC,Y,0.25,0.35
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,2
LMESH,ALL
ALLS
LSEL,S,LOC,X,0
LSEL,A,LOC,X,0.15
LSEL,R,LOC,Y,0.35,0.55
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,4
LMESH,ALL
ALLS
LSEL,S,LOC,X,0
LSEL,A,LOC,X,0.15
LSEL,R,LOC,Y,0.55,0.6
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,2
LMESH,ALL
ALLS
!*水平钢筋
LSEL,S,LOC,Y,0.08
LSEL,A,LOC,Y,0.25
LSEL,A,LOC,Y,0.35
LSEL,A,LOC,Y,0.55
LSEL,R,LOC,X,0,0.15
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,4
LMESH,ALL
ALLS
LSEL,S,LOC,Y,0.08
LSEL,A,LOC,Y,0.25
LSEL,R,LOC,X,0.15,0.27
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,4
LMESH,ALL
ALLS
LSEL,S,LOC,Y,0.35
LSEL,A,LOC,Y,0.55
LSEL,R,LOC,X,0.15,0.27
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,2
LMESH,ALL
ALLS
LSEL,S,LOC,Y,0.08
LSEL,A,LOC,Y,0.25
LSEL,R,LOC,X,0.27,0.3
LSEL,R,LOC,Z,0.03
LESIZE,ALL,,,2
LMESH,ALL
ALLS
!*垂直钢筋
LSEL,S,LOC,Y,0.25
LSEL,A,LOC,Y,0.35
LSEL,A,LOC,Y,0.55
LSEL,R,LOC,X,0.15
LSEL,R,LOC,Z,0.03,0.12
LESIZE,ALL,,,3
LMESH,ALL
ALLS
!*圆弧钢筋
REAL,3
LSEL,S,LOC,Z,0.13,0.2
LESIZE,ALL,,,6
LMESH,ALL
ALLS
!*混凝土
MSHAPE,0,3D
MSHKEY,2
TYPE,2
REAL,2
MAT,2
VSWEEP,ALL
NUMMRG,ALL
NUMCMP,ALL
FINI
/SOLU
!*约束条件
ASEL,S,LOC,X,0
!*DA,ALL,SYMM
DA,ALL,UX
ASEL,S,LOC,Y,0
DA,ALL,UY
!*DA,ALL,SYMM
!*DK,1,ALL
!*加载
/PSF,PRES,NORM,2,0
ASEL,S,LOC,Z,0.12
SFA,ALL,1,PRES,PP
ALLS
NSEL,S,LOC,Z,0.17
F,ALL,FZ,(WW1*HH2+(WW1+WW2)*H1)*PP
!*非线性求解设置
TIME,1
DELTIME,0.1,0.05,0.2
AUTOT,ON
CNVTOL,F,,0.1,,20
!*NLGEOM,ON
PRED,ON
LNSRCH,ON
OUTPR,ALL,ALL
OUTRES,ALL,ALL
SOLVE |