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178_Mechanics Homework Mechanics of Materials Solution

178_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 3.1 ,2, . (18 mm PROBLEM 3.2 PROBLEM 3.3 PROBLEM 3.4 3.1 Determine the torque 'I' which causes a maximum shearing stress of 70 MPa in the steel cylindrical shafi shown. SOLUTION 3.2 Determine the maximum shearing stress caused by a torque of magnitude T= 800 N-m. SOLUTION 3.3 Knowing that the internal diameter of the hollow shafi shown is d = 0.9 in., determine the maximum shearing stress caused by a torque of magnitude T= 9 kip‘in. SOLUTION c =- 0.8 in. =(4gi No.2?) 0. 45 m (CJ- c.“ l: 3%(03‘ -o.?s"‘)= 0.5770 In? £91018) _ - 0.5.76") - 12.0456: Q 3.4 Knowing that d = 1.2 in., determine the torque T which causes a maximum shearing stress of 7.5 ksi in the hollow shaft shown. SOLUTION szid z=(v}g](.-Ic) 0.3.... c=o.23~. “H. = (42mm: 0.6 ;n J = %(C.‘*- cf) = 35(039— 0.6“) =- 0.4398 in“ T: ct!“ = 0.43:: 7.5) 1. 4.12Rip‘3" 4 f/ LJ I," ...
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