Theory of Structures - Civil Engineering Questions and Answers

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A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is

$\frac { WL } { 2AE }$

$\frac { WL } { AE }$

$\frac { W^2L } { AE }$

$\frac { W^2L } { 2AE }$

Answer : Option D

Explanation :

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