Question: A solid steel shaft transmits 20 hp while running at 120 rev/min. Find the smallest safe diameter of the shaft if the shear stress

A solid steel shaft transmits 20 hp while running at 120 rev/min.

A solid steel shaft transmits 20 hp while running at 120 rev/min. Find the smallest safe diameter of the shaft if the shear stress is limited to 5000 psi and the angle of twist of the shaft is not to exceed 9 in a length of 10 ft. Use G = 12 x 106 psi for steel.

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