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 2, Problem 2.7.1P
A prismatic bar AD of length L, cross-sectional area A. and modulus of elasticity E is subjected to loads 5P, 3P, and P acting at points B, C, and D, respectively (see figure). Segments AB, BC, and CD have lengths L/6, L/2, and L/3, respectively.
(a) Obtain a formula for the strain energy U of the bar.
(b) Calculate the strain energy if P = 6 kips,
L = 52 in., A = 2.76 in2, and the material is aluminum with E = 10.4 × 106 psi.
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Chapter 2 Solutions
Mechanics of Materials (MindTap Course List)
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