Mechanics of Materials (MindTap Course List)
9th Edition
ISBN: 9781337093347
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3.4.11P
A tapered bar AB with a solid circular cross section is twisted by torques T = 36,000 lb-in. (sec figure). The diameter of the bar varies linearly from dAat the left-hand end to dBat the right-hand end. The bar has length L = 4,0 ft and is made of an aluminum alloy having shear modulus of elasticity G = 3.9 × 106 psi. The allowable shear stress in the bar is 15,000 psi and the allowable angle of twist is 3.0°.
If the diameter at end B is 1.5 times the diameter at end A, what is the minimum required diameter dAat end A?
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Chapter 3 Solutions
Mechanics of Materials (MindTap Course List)
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