4.12 The stress-strain relation of an aluminum alloy bar having a length of 2 m anda diameter of 10 mm is expressed by the equationσ370,000 [¹ + (270)]where σ is in MPa. If the rod is axially loaded by a tensile force of 20 kN andthen unloaded, what is the permanent deformation of the bar?

Introduction In this problem, we will use the given stress-strain relationship to calculate the…

The stress-strain relation of an aluminum alloy bar having a length of 2 m and a diameter of 10 mm is expressed by the equation 1+ 70,000[¹+(270)] where σ is in MPa. If the rod is axially loaded by a tensile force of 20 kN and then unloaded, what is the permanent deformation of the har?

The stress-strain relation of an aluminum alloy bar having a length of 2 m and a diameter of 10 mm is expressed by the equation 1+ 70,000[¹+(270)] where σ is in MPa. If the rod is axially loaded by a tensile force of 20 kN and then unloaded, what is the permanent deformation of the har?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

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4.12 The stress-strain relation of an aluminum alloy bar having a length of 2 m and
a diameter of 10 mm is expressed by the equation
σ
3
70,000 [¹ + (270)]
where σ is in MPa. If the rod is axially loaded by a tensile force of 20 kN and
then unloaded, what is the permanent deformation of the bar?

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