contact resistance and contact area through a contact pair in comsol 4.0a

Thu, 02 Sep 2010 17:39:47 +0000

Question 1:
In my 3D model developed in comsol 4a, how do I find the contact area in a contact pair ?
In version 3.5a, I surface integrated the contact variable, contact_cp, over the slave boundary.
In comsol 4a i do not find it, only the gap variable, and the contact stress, Tn. How do I do it in Comsol 4a

Question 2:
When electric current is going through a contact pair by the electrostatics (es) module, how is the best way to set up the contact pair in the es-module for establishing a contact resistance over the pair that vary with Tn ?

For instance in the electric current module (ec), the contact resistance setting is no longer defined specially for a defined pair (do not belong to the pair-menu). What setting settings under the "pair-menu" has to be used in addition to the contact resistance setting ?

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contact resistance and contact area through a contact pair in comsol 4.0a