Problem with 3D Contact Analysis
Problem with 3D Contact Analysis
(OP)
Hello,
I'am having some troubles trying to set up a 3D contact analysis of a cylinder and an arc. The contact is not occuring, the contact volume is not interacting with target elements. I think Iam probably not constraining the model correctly. The input file is listed below, if anyone can give me a hint I would really appreciate.
/prep7
d=1
r1=0.8
t=0.1
mf=20
et,1,185
mp,ex,1,30e6
mp,prxy,1,.3
Cyl4,0,0,r1,90,,,1
wpof,,-r1*9
Cyl4,0,0,r1*10,90,r1*10+t,,1
lsel,s,,,11,13,2
lsel,a,,,14,16,2
lesize,all,,,mf,1/mf
lsel,s,,,12,15,3
lesize,all,,,mf/5
lsel,s,,,7
lsel,a,,,18,20,2
lesize,all,,,mf/5*(d/t)
allsel,all
MSHAPE,0,3d
MSHKEY,1
VMESH,2
lsel,s,,,3,4,
lesize,all,,,mf,1/mf
lsel,a,,,2,5,
lesize,all,,,mf,mf
lplot
MSHAPE,0,3d
VMESH,1
allsel,all
et,2,170
et,3,173
keyopt,3,9,1
keyopt,3,10,1
r,3,0.0,0.0,0.5,0.05,0.0,0.0
rmore,0.0,0.0,0.1E+21,0.0,1.0,0.0
rmore,0.0,0.0,1.0,0.0,1.0,0.50,
type,3
real,3
asel,s,,,3,
nsla,s,1
esln,s
eplot
esurf
allsel,all
asel,s,,,9,
nsla,s,1
esln,s
eplot
esurf
allsel,all
/solu
nlgeom,on
nsubst,1
asel,s,loc,x,0
asel,a,loc,z,0
asel,a,loc,z,d
da,all,symm
allsel
asel,s,loc,y,0
asel,a,,,10,
da,all,uy,0
asel,s,,,8,
da,all,uy,-.02
allsel
/STATUS,SOLU
SOLVE
/STATUS,SOLU
FINISH
/POST1
!*
/EFACET,1
PLNSOL, S,EQV, 0,1.0
Thanks.
I'am having some troubles trying to set up a 3D contact analysis of a cylinder and an arc. The contact is not occuring, the contact volume is not interacting with target elements. I think Iam probably not constraining the model correctly. The input file is listed below, if anyone can give me a hint I would really appreciate.
/prep7
d=1
r1=0.8
t=0.1
mf=20
et,1,185
mp,ex,1,30e6
mp,prxy,1,.3
Cyl4,0,0,r1,90,,,1
wpof,,-r1*9
Cyl4,0,0,r1*10,90,r1*10+t,,1
lsel,s,,,11,13,2
lsel,a,,,14,16,2
lesize,all,,,mf,1/mf
lsel,s,,,12,15,3
lesize,all,,,mf/5
lsel,s,,,7
lsel,a,,,18,20,2
lesize,all,,,mf/5*(d/t)
allsel,all
MSHAPE,0,3d
MSHKEY,1
VMESH,2
lsel,s,,,3,4,
lesize,all,,,mf,1/mf
lsel,a,,,2,5,
lesize,all,,,mf,mf
lplot
MSHAPE,0,3d
VMESH,1
allsel,all
et,2,170
et,3,173
keyopt,3,9,1
keyopt,3,10,1
r,3,0.0,0.0,0.5,0.05,0.0,0.0
rmore,0.0,0.0,0.1E+21,0.0,1.0,0.0
rmore,0.0,0.0,1.0,0.0,1.0,0.50,
type,3
real,3
asel,s,,,3,
nsla,s,1
esln,s
eplot
esurf
allsel,all
asel,s,,,9,
nsla,s,1
esln,s
eplot
esurf
allsel,all
/solu
nlgeom,on
nsubst,1
asel,s,loc,x,0
asel,a,loc,z,0
asel,a,loc,z,d
da,all,symm
allsel
asel,s,loc,y,0
asel,a,,,10,
da,all,uy,0
asel,s,,,8,
da,all,uy,-.02
allsel
/STATUS,SOLU
SOLVE
/STATUS,SOLU
FINISH
/POST1
!*
/EFACET,1
PLNSOL, S,EQV, 0,1.0
Thanks.





RE: Problem with 3D Contact Analysis
/prep7
d=1
r1=0.8
t=0.1
mf=20
et,1,185
mp,ex,1,30e6
mp,prxy,1,.3
Cyl4,0,0,r1,90,,,1
wpof,,-r1*9
Cyl4,0,0,r1*10,90,r1*10+t,,1
lsel,s,,,11,13,2
lsel,a,,,14,16,2
lesize,all,,,mf,1/mf
lsel,s,,,12,15,3
lesize,all,,,mf/5
lsel,s,,,7
lsel,a,,,18,20,2
lesize,all,,,mf/5*(d/t)
allsel,all
MSHAPE,0,3d
MSHKEY,1
VMESH,2
lsel,s,,,3,4,
lesize,all,,,mf,1/mf
lsel,a,,,2,5,
lesize,all,,,mf,mf
lplot
MSHAPE,0,3d
VMESH,1
allsel,all
et,2,170
et,3,173
keyopt,3,9,1
keyopt,3,10,1
r,3,0.0,0.0,0.5,0.05,0.0,0.0
rmore,0.0,0.0,0.1E+21,0.0,1.0,0.0
rmore,0.0,0.0,1.0,0.0,1.0,0.50,
type,3
real,3
asel,s,,,3,
nsla,s,1
esln,s
eplot
esurf
type,2 !Switch to target elements
allsel,all
asel,s,,,9,
nsla,s,1
esln,s
eplot
esurf
allsel,all
This at least defines the contact surface for me, and it's initial condition is closed.
Hope this helps,
Doug
RE: Problem with 3D Contact Analysis
Good luck,
Doug
RE: Problem with 3D Contact Analysis
I was killing myself here, I though I`ve already defined the target elements on the active CS, and I couldn`t find this little simple detail.
Thanks again!