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In-s [12.5K]
3 years ago
13

A 3/8-16 UNC nut and bolt are used to assemble steel plates. The clearance holes in the plates are 7/16 in. The plates are clamp

ed together by the nut and bolt with a force of 500 lb. If the torque coefficient is 0.22, determine the (a) torque that is applied and (b) resulting stress on the bolt
Engineering
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

a) T=41.25 in-lb

b) Resulting stress=6493.5 lb/in^2

Explanation:

a) The torque is:

T=C*D*F

where C is the torque coefficient, F the force and D is 3/8. Replacing:

T=0.22*3/8*500=41.25 in-lb

b) The area is:

A=0.25\pi (D-\frac{0.9743}{n})^{2}=0.25\pi   (3/8-\frac{0.9743}{16})^{2}=0.077 in^{2}

The resulting stress is:

Resulting stress=\frac{F}{A}=\frac{500}{0.077} =6493.5 lb/in^{2}

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