Posted by chriscase on Saturday, May 05, 2007 at 18:06:48 :
In Reply to: Re: I would ovulate the holes. posted by Paul (in NY) on Saturday, May 05, 2007 at 17:10:29 :
It's the friction caused by the tension of bolts that usually holds things in place. Even dowel pins are only there for alignment at assembly- the friction is lots more than the shear strength of the dowels. Plus, friction has ZERO clearance. There is friction there already. "Shear" activity won't start until the friction is ovecome, and the clearance us used up by motion.
The only place where this is not so is on the steering-arm-to-knuckle on some trucks. You know, the ones with the little cone thing under the nut? The cone works like a collet, clamping everything with zero clearance.
It's been about 25 years since my boss walked me through the math. We would need to look up yield strength of a bolt (easiest way to figure tension) and shear strength. Plus the co-efficient of friction for steel-on-steel.
I suppose if a guy was worried about his spring clamps moving, he could do a couple tack welds to the housing?
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