A steel rod, 4 m long and 1500 mm^2 in cross-sectional area, is secured between two walls. If the rod is stress free at 25℃, compute the stress when the temperature has dropped to -10℃ assuming that the walls do not move. Use α=11.7×10^(-6)/℃ and E=200 GPa

A steel rod, 4 m long and 1500 mm^2 in cross-sectional area, is secured between two walls. If the rod is stress free at 25℃, compute the stress when the temperature has dropped to -10℃ assuming that the walls do not move. Use α=11.7×10^(-6)/℃ and E=200 GPa

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter7: Analysis Of Stress And Strain

Section: Chapter Questions

Problem 7.6.13P: A solid spherical ball of magnesium alloy (E = 6.5 × l0-6 psi, v = 0.35) is lowered into the ocean...

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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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