A bar of length L meters and cross-sectional area A is subjected to a slowly increasing tensile force W. What is the expression for the strain energy stored in the bar?

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Subject: Theory of Structurescivil-engineering-mcqs › theory-of-structures
Published: 17 Jan 2019
Last updated: 28 May 2026

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Explanation

The strain energy stored in a bar under a gradually applied tensile load W is given by (W²L) / (2AE), where L is the length, A is the cross-sectional area, and E is the modulus of elasticity.

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A bar of length L meters and cross-sectional area A is subjected to a slowly increasing tensile force W. What is the expression for the strain energy stored in the bar?

Explanation

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