1.

A bar of uniform rectangular section of area A is subjected to an axial tensile load P; it's Young's modulus is E and its Poisson's ratio is 1/m. Its volumetric strain ev is

A. \(\frac{P}{{AE}}\;\left( {1 + \frac{3}{m}} \right)\)
B. \(\frac{P}{{AE}}\left( {1 + \frac{2}{m}} \right)\)
C. \(\frac{P}{{AE}}\left( {1 - \frac{2}{m}} \right)\)
D. \(\frac{P}{{AE}}\left( {1 - \frac{1}{{2m}}} \right)\)
Answer» D. \(\frac{P}{{AE}}\left( {1 - \frac{1}{{2m}}} \right)\)


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