Simulation failure with sandwich modele
Simulation failure with sandwich modele
(OP)
Hi,
I have a problem with simulation, i modelise a sandwich with a solid part for the nida and surfacic part for the skins. I precise that the part is the composite tank.
I made the kind of model because I want to differ the plies in the skins and the existing module in solid simulation can't do it.
But the analysis failure because there are interference between the surface conctact of the skin and the nida.
I tried to change the contact, solidaire, no penetration...
I don't find the solution.
Have you an idea, please?
I have a problem with simulation, i modelise a sandwich with a solid part for the nida and surfacic part for the skins. I precise that the part is the composite tank.
I made the kind of model because I want to differ the plies in the skins and the existing module in solid simulation can't do it.
But the analysis failure because there are interference between the surface conctact of the skin and the nida.
I tried to change the contact, solidaire, no penetration...
I don't find the solution.
Have you an idea, please?






RE: Simulation failure with sandwich modele
KTOP
RE: Simulation failure with sandwich modele
for accuratly, I work with solidworks 2009 simulation.
Exaltly, the model composite shell is not available in old version of solidworks.
I phoned at the hotline and they said the problem is onthe contact between the surface shell and the surface solid.
I put the contact manually (solidaire between each face in contact)
But the model don't want converge (the contact that i put didn't worked)
RE: Simulation failure with sandwich modele
There are two ways commonly used to attach shells to solids.
1. overlap the shell and solid element where they join and merge nodes. The trick to this is that you have in effect doubled the stiffness of the structure in the overlap zone.
2. use rigid bar elements to transfer the rotational dof to translational dof. You probably can't do this in CosmosWorks/Simulation.
I don't know if you can do the first method in CosmosWorks/Simulation either.
TOP
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RE: Simulation failure with sandwich modele
I try your solutions, Kellnerp, but the overlaping and using the rigid element don't work in my model.
Solidwords get across the surfacic model through the other part. It's very strange and i don't understand.
I have prefered to re-make the simulation under ANSYS v11 and that's run correctly.
Thank you again for your help
RE: Simulation failure with sandwich modele
TOP
CSWP
BSSE
www.engtran.com
www.niswug.org
"Node news is good news."