GATE Aerospace Engineering Practice Quiz

Question 1

For an isotropic linear elastic material, the shear stress-shear strain relation in simple shear is

Accepted Answer

$\tau = G\gamma$

Question 2

For an isotropic linear elastic material, the compliance matrix in 3D is physically admissible only if Poisson’s ratio satisfies

Accepted Answer

$-1 < \nu < 0.5$

Question 3

A material has $E=210$ GPa and $\nu=0.30$. Its bulk modulus is

Accepted Answer

175 GPa

Question 4

A bar is subjected to equal tensile stress $\sigma$ in all three orthogonal directions. For an isotropic material, the normal strain in any one direction is

Accepted Answer

$(1-2\nu)\sigma/E$

GATE Aerospace Engineering — Mock tests

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