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Re: Friction Steel Clamp calculation

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Going back to my old physics lab, friction force is not a function of
surface area.  It is the clamping force times the coefficient of friction.
Adheresion is a function of surface area.  I'm not familiar with the term
'friction stress'.


On Thu, May 2, 2013 at 6:03 AM, David Cohen (Baran Raviv) <
dcohen(--nospam--at)> wrote:

> Dear everyone
> When calculating the friction resistance of a clamp tight with bolts 
> around pipe, the axial force has to be divide by the contact area in 
> order to get the friction stress. This stress divide by the friction 
> factor should give a tight stress that the clamp would apply on the pipe. 
> By this way this stress will give us the forces in bolts, by dividing it 
> with the contact area again. And then the contact area is no longer a 
> factor for the friction resistance of the clamp, and closing UBolts will 
> give the same results.
> Is anyone of you have any experience in these kind of calculation, I will
> be great to receive information and guidelines for this
> Thanks
> David C.

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