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Fastener Homework Assignment

1. A 3/4 in - 16 UNF SAE grade 5 bolt is subjected to a load P of 6 kip in a tension joint.

The initial bolt tension = 25 kip. The bolt and joint stiffnesses are kb = 6.50 and km =

13.8 Mlbf/in, respectively. Determine the preload and service load stresses in the bolt.

Compare these to the SAE minimum proof strength of the bolt.