Two joules of strain energy is suddenly induced in a 200 mm long aluminum bar with a 40 mm square cross section, by a compressive load. Calculate the maximum instantaneous stress induced in the bar and magnitude of the suddenly applied load (E = 80 GPa)

Two joules of strain energy is suddenly induced in a 200 mm long aluminum bar with a 40 mm square cross section, by a compressive load. Calculate the maximum instantaneous stress induced in the bar and magnitude of the suddenly applied load (E = 80 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

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.7.5P: Determine the strain energy per unit volume (units of psi) and the strain energy per unit weight...

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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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