TQ and force
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Posted by: Brill ®

06/22/2007, 08:21:01

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I've been looking through some old engineering books here at the office, and I need to know how to relate the torque on a bolt (say like 80 ft-lb) into a vertical force. See, in the application i'm bolting a plate to a tube, but i want to know what kind of force the tube can take before it starts to defelect a noticable amount. i have the equation for deflection, but wasn't sure on how to get the force. thanks in advance







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Re: TQ and force
Re: TQ and force -- Brill Post Reply Top of thread Forum
Posted by: Kelly Bramble ®

06/22/2007, 09:14:04

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Vertical force? DO you relay mean the force exerted in the fastener in tension? --/torque.htm







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Re: TQ and force
Re: TQ and force -- Brill Post Reply Top of thread Forum
Posted by: swearingen ®

06/22/2007, 09:04:46

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I'm assuming that the force you are referring to is imparted by the torqueing of the bolt.

If a wrench is used and you are torqueing to 80 ftlb, then the force in pounds is simply 80 divided by the distance from the center of the bolt to the application of force to the wrench by your hand measured in feet.

Two things to consider: 1. The direction your hand is moving is the direction that the load is applied to the tube. 2. Torque causes deflection too - you must consider the deflection caused by the torque in addition to the deflection caused by the application of that torque.








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Posted by: Brill ®

06/22/2007, 09:18:42

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thanks!







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