Aerospace Engineering > GATE 2014 > Material Properties
It is desired to measure the Young's modulus and the Poisson's ratio of a given homogeneous, isotropic material. A bar of length 20cm and square cross-section (10mm×10mm) of this material is subjected to a tensile load of 40kN. Under this load, length increases to 20.1cm while the cross-section reduces to 9.98mm×9.98mm Young's modulus and Poisson's ratio of the material are:
A
80GPa& 0.4 respectively
B
40GPa& -0.4 respectively
C
80GPa& -0.2 respectively
D
40GPa& 0.2 respectively

Correct : a

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Young's modulus Poisson's ratio GATE Aerospace 2014 aerospace engineering gate material property measurement tensile load material GATE 2014 question 21 Poisson's ratio definition material property calculation Young's modulus definition material science engineering

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