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 1, Problem 1.6.5P
An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the aluminum is shown in Fig. 1.34. The initial straight, line part of the curve has a slope (modulus of elasticity) of 10.6 × 106 psi. The bar is loaded by tensile forces P = 44.6 k and then unloaded.
(a) That is the permanent set of the bar?
(b) If the bar is reloaded. what is the proportional limit?
hint: Use the concepts illustrated in Figs. l.39b and 1.40.
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Chapter 1 Solutions
Mechanics of Materials (MindTap Course List)
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