10-91. The internal loadings at a critical section along the steel drive shaft of a ship are calculated to be a torque of 2300 lb#ft, a bending moment of 1500 lb#ft, and an axial thrust of 2500 lb. If the yield points for tension and shear are sY = 100 ksi and tY = 50 ksi, respectively, determine the required diameter of the shaft using the maximum-shearstress theory. | |
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