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Two sections of a pressure vessel are to be held together by 5/8 in-11 UNC grade...

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Mechanical Engineering

Two sections of a pressure vessel are to be held together by 5/8in-11 UNC grade 5 bolts. You are told that the length of the boltsis 1.5 in, the length of the threaded portion of the bolts is 0.75in, and that their elastic modulus is E=30 Mpsi. The total load onthe joint is 36 kip and the stiffness of the members is given askm=8.95 Mlbf/in. What is the minimum number of bolts that should beused to guard against excess proof strength with a factor of safetyof np=1.2? Be sure to make an estimate for the preload.

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