hello my dear friends
i have a small problem, being fresher in ANSYS i couldnt solve the buckling problem can any one help me out
i have made the following APDL text
FINISH
/CLEAR
/PREP7
CYL4,0,0,600, ,600-18.5
L, 8, 2
L, 7, 3
L, 5, 4
L, 6, 1
FLST,2,1,5,ORDE,1
FITEM,2,1
FLST,3,4,4,ORDE,2
FITEM,3,9
FITEM,3,-12
ASBL,P51X,P51X, , ,
FLST,5,4,4,ORDE,2
FITEM,5,5
FITEM,5,-8
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,30, , , , ,1
!*
FLST,5,4,4,ORDE,2
FITEM,5,1
FITEM,5,-4
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,30, , , , ,1
!*
FLST,5,4,4,ORDE,2
FITEM,5,9
FITEM,5,-12
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,2, , , , ,1
et,1,93
mshape,0
amesh,all
alls
et,2,95
TYPE, 1
EXTOPT,ESIZE,25,0,
EXTOPT,ACLEAR,0
EXTOPT,ATTR,0,0,0
MAT,_Z2
REAL,_Z4
ESYS,0
!*
FLST,2,4,5,ORDE,2
FITEM,2,2
FITEM,2,-5
VEXT,P51X, , ,0,0,2500,,,,
save,a-1,db
alls
LOCAL,11,1,0,0,0,90
csys,4
EMODIF,ALL,ESYS,11
EPLOT
ESEL,S,TYPE,,2
/PSYMB,cs,1
EPLOT
alls
asel ,none
asel,a,area,, 6., 11., 5.
asel,a,area,, 15., 19., 4.
allsel,belo,area
nsla,,1
allsel,belo,node
esln
alls
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,8145.6
MPDATA,EY,1,,8145.6
MPDATA,EZ,1,,14846.7
MPDATA,PRXY,1,,0.3
MPDATA,PRYZ,1,,0.3
MPDATA,PRXZ,1,,0.3
MPDATA,GXY,1,,1500
MPDATA,GYZ,1,,2500
MPDATA,GXZ,1,,1500
alls
FLST,2,4,5,ORDE,2
FITEM,2,2
FITEM,2,-5
DA,P51X,ALL,
alls
FLST,5,4,5,ORDE,4
FITEM,5,1
FITEM,5,10
FITEM,5,14
FITEM,5,18
ASEL,R, , ,P51X
ALLSEL,BELOW,AREA
!68668 mm2
!3165779/68668= 46.10 mpa
SFA,all,1,PRES,46.10
! total surfac are= 9424800
! pressure given = 0.32 Mpa
alls,all
aclear,all
alls,all
emodif,all,mat,1
alls
asel ,none
asel,a,area,, 6., 11., 5.
asel,a,area,, 15., 19., 4.
allsel,belo,area
nsla,,1
allsel,belo,node
alls
nsel ,none
nsel,a,node,, 1206., 1303., 1.
nsel,a,node,, 1402., 3542., 1.
nsel,a,node,, 9651., 9699., 1.
nsel,a,node,, 9749., 11889., 1.
nsel,a,node,, 17901., 17949., 1.
nsel,a,node,, 17999., 20139., 1.
nsel,a,node,, 26146., 28286., 1.
allsel,belo,node
F,all,FZ,9.99e-7
! total pressure=0.32Mpa
!area= 9424800 mm2
!total force= 0.033 N
!force on each individual nodes= 9.99e-7
!no of nodes= 33960
alls,all
ANTYPE,0
finish
/sol
solve
save,v-2,db
finish
/sol
alls,all
ANTYPE,1
!BUCOPT,LANB,1,0,0
!0.8988d
BUCOPT,SUBSP,5,0,0
!*
SUBOPT,0,0,0,0,0,ALL
finish
/sol
solve
save, fin-1,db
plz help me
Venkat
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| untitled.JPG | 37.92 KB |
