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Posted:
2 decades ago
1 sept. 2009, 12:01 UTC−4
Did you set your contact pairs?
Did you set your contact pairs?
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Posted:
2 decades ago
1 sept. 2009, 12:18 UTC−4
Hi Manohar,
I have been working on a similar problem like yours, which I have 2 objects that will expand due to temperature changes. previously someone has provided me with the following link of an example in contact problems, you may start with this one to gain more understanding.
www.comsol.com/showroom/gallery/1431/
Frankly, I still have errors in my problem and keep on trying; so maybe we can keep each other posted if any of us makes some discoveries.
John Tam
Hi Manohar,
I have been working on a similar problem like yours, which I have 2 objects that will expand due to temperature changes. previously someone has provided me with the following link of an example in contact problems, you may start with this one to gain more understanding.
http://www.comsol.com/showroom/gallery/1431/
Frankly, I still have errors in my problem and keep on trying; so maybe we can keep each other posted if any of us makes some discoveries.
John Tam
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Posted:
2 decades ago
28 oct. 2009, 22:28 UTC−4
Yeah I am quite sure my contact definition is set right . I still don't know whats wrong.
Yeah I am quite sure my contact definition is set right . I still don't know whats wrong.
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Posted:
1 decade ago
31 déc. 2013, 03:41 UTC−5
Although Comsol is a fantastic software for multiphysics, it does not handle contact problems properly, and I moved over to Abaqus for contact problems.
Although Comsol is a fantastic software for multiphysics, it does not handle contact problems properly, and I moved over to Abaqus for contact problems.
Henrik Sönnerlind
COMSOL Employee
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Posted:
1 decade ago
3 janv. 2014, 09:59 UTC−5
Hi,
COMSOL is continuously improving its contact algorithms and they have gone through many revisions since these original postings in 2009. The latest version, 4.4, has additional contact methods. See
www.comsol.com/release/4.4#structural for more information. We have no reports of problems with uncontrolled penetration with mechanical contact. Contact simulations can sometimes be challenging and we recommend that you contact technical support for help with specific models.
See also the Knowledgebase articles
www.comsol.com/support/knowledgebase/1102/ and
www.comsol.com/support/knowledgebase/1171/ .
Some models showing how to perform contact analysis:
www.comsol.com/model/cylinder-roller-in-contact-a-benchmark-study-1431
www.comsol.com/model/contact-analysis-of-a-snap-hook-using-a-penalty-formulation-12577
www.comsol.com/model/prestressed-bolts-in-a-tube-connection-185
www.comsol.com/model/sliding-wedge-364
You can also analyze true multihysics contact problems as described in the section 'Thermal Contact Resistance' in
www.comsol.com/heat-transfer-module, or in the model
www.comsol.com/model/simulation-of-multiphysics-contact-in-a-power-conductor-4119
Regards,
Henrik
Hi,
COMSOL is continuously improving its contact algorithms and they have gone through many revisions since these original postings in 2009. The latest version, 4.4, has additional contact methods. See http://www.comsol.com/release/4.4#structural for more information. We have no reports of problems with uncontrolled penetration with mechanical contact. Contact simulations can sometimes be challenging and we recommend that you contact technical support for help with specific models.
See also the Knowledgebase articles http://www.comsol.com/support/knowledgebase/1102/ and http://www.comsol.com/support/knowledgebase/1171/ .
Some models showing how to perform contact analysis:
http://www.comsol.com/model/cylinder-roller-in-contact-a-benchmark-study-1431
http://www.comsol.com/model/contact-analysis-of-a-snap-hook-using-a-penalty-formulation-12577
http://www.comsol.com/model/prestressed-bolts-in-a-tube-connection-185
http://www.comsol.com/model/sliding-wedge-364
You can also analyze true multihysics contact problems as described in the section 'Thermal Contact Resistance' in http://www.comsol.com/heat-transfer-module, or in the model http://www.comsol.com/model/simulation-of-multiphysics-contact-in-a-power-conductor-4119
Regards,
Henrik