hw22 - Knowing that G = 77.2 GPa for each shaft determine...

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2010 - 2011 SPRING SEMESTER AEE 264 Mechanics of Materials Sec(01) HOMEWORK #2 Given: 15March 2011 Due: 23 March 2011 until 12:30 1. For the 60-mm-diameter solid cylinder and loading shown, (a) Determine the maximum shearing stress. (b) Determine the inner diameter of the hollow cylinder, of 80-mm outer diameter, for which the maximum stress is the same as in part (a). 2. Knowing that each of the shafts AB, BC, and CD consist of solid circular rods, determine (a) the shaft in which the maximum shearing stress occurs, (b) the magnitude of that stress. 3. Two solid shafts are connected by gears as shown.

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Unformatted text preview: Knowing that G = 77.2 GPa for each shaft determine the angle through which end A rotates when T A = 1200 N • m. 4. At a time when rotation is prevented at the lower end of each shaft, an 80 N . m torque is applied to end A of shaft AB. Knowing that G = 77.2 GPa for both shafts, determine (a) the maximum shearing stress in shaft CD, (b) the angle of rotation at A . 5. A steel shaft must transmit 150 kW at speed of 360 rpm. Knowing that G = 77.2 GPa, design a solid shaft so that the maximum stress will not exceed 50 MPa and the angle of twist in a 2.5-m length must not exceed 3°....
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