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Contact pair problem on Comsol4.2 (without Strutural Mechanics module)
Posted Jul 26, 2011, 8:24 a.m. EDT 1 Reply
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Hi all,
I am a novice user of Comsol4.2 (without structural mechanics module). I have a structural mechanics Contact Pair problem on a very simple model.
The model consists of examining the stress distributions and deformation of a 2D system, where a smaller rectangle is put on top of a bigger rectangle, and the smaller rectangle is given a normal, downward boundary load.
Having checked that all the other boundary conditions are fine, the problem comes when I set the contact pair boundary of the 2 rectangles as "free" , Model->Solid Mechanics-> Pairs->free. By doing so, comsol automatically "fixes" the relative tangential movement of the touching pairs, which is not what I wanted. On the other hand, if I chose the "roller" feature, Model->Solid Mechanics-> Pairs->roller, it forces the pair to not have any movement in the normal direction, which is also not what I wanted.
I have attached the .mph file just in case my description is not clear enough.
If someone could help me out, it would be great! Thanks in advance.
TB.
I am a novice user of Comsol4.2 (without structural mechanics module). I have a structural mechanics Contact Pair problem on a very simple model.
The model consists of examining the stress distributions and deformation of a 2D system, where a smaller rectangle is put on top of a bigger rectangle, and the smaller rectangle is given a normal, downward boundary load.
Having checked that all the other boundary conditions are fine, the problem comes when I set the contact pair boundary of the 2 rectangles as "free" , Model->Solid Mechanics-> Pairs->free. By doing so, comsol automatically "fixes" the relative tangential movement of the touching pairs, which is not what I wanted. On the other hand, if I chose the "roller" feature, Model->Solid Mechanics-> Pairs->roller, it forces the pair to not have any movement in the normal direction, which is also not what I wanted.
I have attached the .mph file just in case my description is not clear enough.
If someone could help me out, it would be great! Thanks in advance.
TB.
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1 Reply Last Post Jul 26, 2011, 2:58 p.m. EDT
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Posted:
1 decade ago
just in case.. I am using the stationary mode of the basic structural mechanics, the objects being linear elastic....