APDL Programming buckling FEA C Section Cold Formed Steel

gears · October 23, 2018, 02:37

Hi,

I am facing issues with my program. Listed below. This is form my masters project. Also in what way can I connect the filleted surfaces shown in fig by a weld or just load or stress transfer connection.

fini
/clear

/title,C160T2B70-1L

/prep7

et,1,shell181
r,1,2
mp,ex,1,1.85e5
mp,nuxy,1,0.3

type,1
mat,1
real,1

k,1,69,19,0
k,2,69,0,0
k,3,0,0,0
k,4,0,159,0
k,5,69,159,0
k,6,69,139,0
k,7,0,0,2500

k,8,71,19,0
k,9,71,0,0
k,10,139,0,0
k,11,139,159,0
k,12,71,159,0
k,13,71,139,0
k,14,139,0,2500

l,1,2
l,2,3
l,3,4
l,4,5
l,5,6
l,3,7

l,8,9
l,9,10
l,10,11
l,11,12
l,12,13
l,10,14

adrag,1,2,3,4,5,,6,,,,,,

adrag,7,8,9,10,11,,12,,,,,,

afillt,1,2,4
afillt,13,3,4
afillt,14,4,4
afillt,15,5,4
afillt,6,7,4
afillt,17,8,4
afillt,18,9,4
afillt,19,10,4

local,11,1,0,19.5,20,,,90
k,57,5,0
k,58,5,90
k,59,5,180
k,60,5,270
a,57,58,59,60
asba,3,10

local,12,1,0,138.5,20,,,90
k,61,5,0
k,62,5,90
k,63,5,180
k,64,5,270
a,61,62,63,64
asba,19,3

local,13,1,0,138.5,2480,,,90
k,65,5,0
k,66,5,90
k,67,5,180
k,68,5,270
a,65,66,67,68
asba,10,3

local,14,1,0,19.5,2480,,,90
k,69,5,0
k,70,5,90
k,71,5,180
k,72,5,270
a,69,70,71,72
asba,19,3

local,15,1,139,19.5,20,,,90
k,73,5,0
k,74,5,90
k,75,5,180
k,76,5,270
a,73,74,75,76
asba,8,3

local,16,1,139,138.5,20,,,90
k,77,5,0
k,78,5,90
k,79,5,180
k,80,5,270
a,77,78,79,80
asba,19,3

local,17,1,139,138.5,2480,,,90
k,81,5,0
k,82,5,90
k,83,5,180
k,84,5,270
a,81,82,83,84
asba,8,3

local,18,1,139,19.5,2480,,,90
k,85,5,0
k,86,5,90
k,87,5,180
k,88,5,270
a,85,86,87,88
asba,19,3

csys,0

esize,5
amesh,all,,,
allsel

lsel,s,,,11
lsel,a,,,19
lsel,a,,,20
lsel,a,,,21
nsll,s,1
d,all,all,0

lsel,s,,,22
lsel,a,,,24
lsel,a,,,26
lsel,a,,,27
nsll,s,1
d,all,all,0

lsel,s,,,28
lsel,a,,,30
lsel,a,,,32
lsel,a,,,33
nsll,s,1
d,all,all,0

lsel,s,,,67
lsel,a,,,68
lsel,a,,,70
lsel,a,,,71
nsll,s,1
d,all,all,0

lsel,s,,,79
lsel,a,,,80
lsel,a,,,81
lsel,a,,,82
nsll,s,1
d,all,all,0

lsel,s,,,75
lsel,a,,,76
lsel,a,,,77
lsel,a,,,78
nsll,s,1
d,all,all,0

lsel,s,,,83
lsel,a,,,84
lsel,a,,,85
lsel,a,,,86
nsll,s,1
d,all,all,0

lsel,s,,,87
lsel,a,,,88
lsel,a,,,89
lsel,a,,,90
nsll,s,1
d,all,all,0

nsel,s,loc,x,4,64
nsel,r,loc,y,0,0
nplot
nsel,r,loc,z,0,50
cm,N1,node
cmsel,s,N1
d,all,uy,0
allsel

nsel,s,loc,x,4,64
nsel,r,loc,y,0,0
nplot
nsel,r,loc,z,2450,2500
cm,N2,node
cmsel,s,N2
d,all,uy,0
allsel

nsel,s,loc,x,0,0
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,0,50
cm,N3,node
cmsel,s,N3
d,all,ux,0
allsel

nsel,s,loc,x,0,0
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,2450,2500
cm,N4,node
cmsel,s,N4
d,all,ux,0
allsel

nsel,s,loc,x,0,0
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,0,50
cm,N5,node
cmsel,s,N5
d,all,uY,0
allsel

nsel,s,loc,x,0,0
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,2450,2500
cm,N6,node
cmsel,s,N6
d,all,uY,0
allsel

nsel,s,loc,x,4,64
nsel,r,loc,y,158,158
nplot
nsel,r,loc,z,849,851
cm,N7,node
cmsel,s,N7,node
f,N7,fy,-0.01925
allsel

nsel,s,loc,x,4,64
nsel,r,loc,y,158,158
nplot
nsel,r,loc,z,1649,1651
cm,N8,node
cmsel,s,N8,node
f,N8,fy,-0.01925
allsel

nsel,s,loc,x,74,136
nsel,r,loc,y,0,0
nplot
nsel,r,loc,z,0,50
cm,N9,node
cmsel,s,N9
d,all,uy,0
allsel

nsel,s,loc,x,74,136
nsel,r,loc,y,0,0
nplot
nsel,r,loc,z,2450,2500
cm,N10,node
cmsel,s,N10
d,all,uy,0
allsel

nsel,s,loc,x,139,139
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,0,50
cm,N11,node
cmsel,s,N11
d,all,ux,0
allsel

nsel,s,loc,x,139,139
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,2450,2500
cm,N12,node
cmsel,s,N12
d,all,ux,0
allsel

nsel,s,loc,x,139,139
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,0,50
cm,N13,node
cmsel,s,N13
d,all,uY,0
allsel

nsel,s,loc,x,139,139
nsel,r,loc,y,0,158
nplot
nsel,r,loc,z,2450,2500
cm,N14,node
cmsel,s,N14
d,all,uY,0
allsel

nsel,s,loc,x,74,136
nsel,r,loc,y,158,158
nplot
nsel,r,loc,z,849,851
cm,N15,node
cmsel,s,N15,node
f,N7,fy,-0.01925
allsel

nsel,s,loc,x,74,136
nsel,r,loc,y,158,158
nplot
nsel,r,loc,z,1649,1651
cm,N16,node
cmsel,s,N16,node
f,N8,fy,-0.01925
allsel

/SOLU
PSTRES,ON
SOLVE
FINISH

/SOLU
ANTYPE,BUCKLE
OUTRES,ALL,ALL
BUCOPT,LANB,30
SOLVE
FINISH

/SOLU
EXPASS,ON
MXPAND,30,,,YES
OUTRES,ALL,ALL
SOLVE
FINISH

hr4dx · November 15, 2018, 08:31

Look for command CP. Defines a set of coupled degrees of freedom.

gears · November 15, 2018, 08:56

hey thanks for the reply
could help me in placing and syntax of command

hr4dx · November 16, 2018, 03:31

For example in your model.
ASEL,S,,,16
NSLA,S,1
CM,ND_1,NODE

ASEL,S,,,20
NSLA,S,1
CM,ND_2,NODE

CMSEL,S,ND_1
CMSEL,A,ND_2

CP,ND_1,ALL,ALL

gears · November 16, 2018, 04:35

thanks a lot
this should help

gears · November 22, 2018, 05:05

how to solve the element shape issue

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November 15, 2018, 08:31		#2
hr4dx New Member Vlad Join Date: Jul 2018 Posts: 9 Rep Power: 7	Look for command CP. Defines a set of coupled degrees of freedom.

November 15, 2018, 08:56		#3
gears New Member Tanmay Join Date: Oct 2018 Posts: 5 Rep Power: 7	hey thanks for the reply could help me in placing and syntax of command

November 16, 2018, 03:31		#4
hr4dx New Member Vlad Join Date: Jul 2018 Posts: 9 Rep Power: 7	For example in your model. ASEL,S,,,16 NSLA,S,1 CM,ND_1,NODE ASEL,S,,,20 NSLA,S,1 CM,ND_2,NODE CMSEL,S,ND_1 CMSEL,A,ND_2 CP,ND_1,ALL,ALL

November 16, 2018, 04:35		#5
gears New Member Tanmay Join Date: Oct 2018 Posts: 5 Rep Power: 7	thanks a lot this should help

November 22, 2018, 05:05		#6
gears New Member Tanmay Join Date: Oct 2018 Posts: 5 Rep Power: 7	how to solve the element shape issue