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Contact pair problem on Comsol4.2 (without Strutural Mechanics module)

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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.



1 Reply Last Post 26 lug 2011, 14:58 GMT-4

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Posted: 1 decade ago 26 lug 2011, 14:58 GMT-4
just in case.. I am using the stationary mode of the basic structural mechanics, the objects being linear elastic....
just in case.. I am using the stationary mode of the basic structural mechanics, the objects being linear elastic....

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