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Originally Posted by Cory
Correct me if I'm wrong, but doesnt surface area matter in instances when the tread material deforms a surface such as carpet, and "interlocks" (for lack of a better word) with the individual fibers?
Cory
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Glen is right as far as he goes. But sometimes the co-efficient of friction varies with either the load or the load divided by the area. This usually happens in systems where something is deforming enough to be noticable. Generally these interactions are also non-linear and need to be quantified emperically. At least that is easiest for our type of systems.
There were a couple of very good white papers posted by IBApril180 about this a while back that address this question. Here are the links.
http://www.chiefdelphi.com/forums/pa...le&paperid=120
http://www.chiefdelphi.com/forums/pa...le&paperid=119