Contact shell to shell
Contact shell to shell
(OP)
Hello, to all forum, I need help about contact shell to shell or solid to shell.
When I'm going to define the shell surface I use the command behaind:
*SHELL SECTION, ELSET=Elset_name, MATERIAL=steel
1 ,
and don't use the command OFFSET so I have the reference surface coincident with
midsurface.
When I'm going to define the surface for contact I use the string behaind:
*SURFACE, NAME = plate, TYPE = ELEMENT
Elset_name,
After I define the other surface, that I need to doing the contact and define the
surface interaction and contact pair.
*SURFACE INTERACTION, NAME = cnt_interf
*FRICTION
0.1 ,0.0 ,0.0 ,0.0
*CONTACT PAIR, INTERACTION=cnt_interf
...., ....
After I start the analysis and what I see is the contact not before the midsurface,
for example 0.5 mm upper, but on midsurface.
So I see that the abaqus in this case don't "see the shell thikness".
How can I solve it?
P.S.:
If I make an offset=SPOS (for example) in shell section the contact going on whell
but I want that is going also if I define the midsurface of the shell!!!
Regards
When I'm going to define the shell surface I use the command behaind:
*SHELL SECTION, ELSET=Elset_name, MATERIAL=steel
1 ,
and don't use the command OFFSET so I have the reference surface coincident with
midsurface.
When I'm going to define the surface for contact I use the string behaind:
*SURFACE, NAME = plate, TYPE = ELEMENT
Elset_name,
After I define the other surface, that I need to doing the contact and define the
surface interaction and contact pair.
*SURFACE INTERACTION, NAME = cnt_interf
*FRICTION
0.1 ,0.0 ,0.0 ,0.0
*CONTACT PAIR, INTERACTION=cnt_interf
...., ....
After I start the analysis and what I see is the contact not before the midsurface,
for example 0.5 mm upper, but on midsurface.
So I see that the abaqus in this case don't "see the shell thikness".
How can I solve it?
P.S.:
If I make an offset=SPOS (for example) in shell section the contact going on whell
but I want that is going also if I define the midsurface of the shell!!!
Regards





RE: Contact shell to shell
Section 29.2.1 in the users manual shows which formulations in ABAQUS/Standard account for shell thickness - note that node to surface, finite sliding contact does not account for the shell thickness.
Also, you may need to specify SPOS or SNEG for the shell contact surface normal direction.
Regards
Martin Stokes CEng MIMechE
RE: Contact shell to shell
RE: Contact shell to shell
TYPE=NODE TO SURFACE is the default formulation. This is used if you don't specify a TYPE=
Regards
Martin Stokes CEng MIMechE
RE: Contact shell to shell
Keep in touch on forum
Jacopo Verani
RE: Contact shell to shell
possible to attach the *.inp or *.cae file, as i am doing a modelling with shell to shell element contact as well. and i am totally new on this function, many thanks.
RE: Contact shell to shell