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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The exact expression is given in Prob. 3.64 for the angle of twist of the solid tapered shaft AB when a torque T is applied as shown. Derive an approximate expression for the angle of twist by replacing the tapered shaft by n cylindrical shafts of equal length and of radius ri = (n + i = ½) (c/n), where i = 1, 2, . . ., n. Using for T, L, G, and c values of your choice, determine the percentage error in the approximate expression when (a) n = 4, (b) n = 8, (c) n = 20, and (d) n = 100.

Prob. 3.64
Determine the maximum shearing stress in a solid shaft of 1.5-in. diameter as it transmits 75 hp at a speed of (a) 750 rpm, (b) 1500 rpm.
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