shear modulus

Question

Shear modulus G relates:

RankGuru · Accepted Answer

Shear Modulus (also known as Modulus of Rigidity, $G$ or $\eta$) characterizes a material's resistance to a shape change while keeping the volume constant. It is the ratio of tangential (shear) stress to shear strain:
$G = \frac{	ext{Shear Stress}}{	ext{Shear Strain}} = \frac{F_{tan}/A}{	heta}$
where $	heta$ is the angle of shear (displacement divided by height). Liquids and gases cannot support shear stress, so their shear modulus is effectively zero.

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shear modulus

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