A bar made of structural steel having the stressstrain diagram shown in the figure has a length

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A bar made of structural steel having the stressstrain diagram shown in the figure has a length of 48 in. The yield stress of the steel is 42 ksi and the slope of the initial linear part of the stress-strain curve (modulus of elasticity) is 30 × 103 ksi. The bar is loaded axially until it elongates 0.20 in., and then the load is removed.
How does the final length of the bar compare with its original length?
A bar made of structural steel having the stressstrain diagram
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Mechanics of Materials

ISBN: 978-0495438076

7th edition

Authors: James M. Gere, Barry J. Goodno

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