Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Modeling rigid components
Posted 03.06.2013, 13:28 GMT-4 Materials, Mesh, Structural Mechanics Version 4.2a 2 Replies
Please login with a confirmed email address before reporting spam
Hello,
I am working on a contact model where one object is much stiffer than the other. In other modeling programs I have used it is possible to assume the very stiff surface is infinitely rigid (Analytical rigid is the term for this in Abaqus) so that this geometry does not have to be solved for. Is there some similar functionality in Comsol? Thanks!
I am working on a contact model where one object is much stiffer than the other. In other modeling programs I have used it is possible to assume the very stiff surface is infinitely rigid (Analytical rigid is the term for this in Abaqus) so that this geometry does not have to be solved for. Is there some similar functionality in Comsol? Thanks!
2 Replies Last Post 05.06.2013, 14:19 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi,
The way to do it in COMSOL Multiphysics is
1. Use the rigid part as 'source' in the contact pair.
2. Use 'Fixed' or 'Prescribed displacement' at the domain level for the rigid part.
3. The mesh on the rigid part should resolve curvatures well, but apart from this, it can (and should preferably) be very coarse.
4. The rule about the relations between mesh density on destination side relative to mesh density on source side does not apply in this case. Any suitable mesh can be used on the destination side.
Examples of this can be found in the models tube_connection and hyperelastic_seal in Model Library.
Regards,
Henrik
The way to do it in COMSOL Multiphysics is
1. Use the rigid part as 'source' in the contact pair.
2. Use 'Fixed' or 'Prescribed displacement' at the domain level for the rigid part.
3. The mesh on the rigid part should resolve curvatures well, but apart from this, it can (and should preferably) be very coarse.
4. The rule about the relations between mesh density on destination side relative to mesh density on source side does not apply in this case. Any suitable mesh can be used on the destination side.
Examples of this can be found in the models tube_connection and hyperelastic_seal in Model Library.
Regards,
Henrik
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Thanks so much! I appreciate the quick help.
-Chris
-Chris