Shear modulus is also known as what?

Shear modulus, which measures a material's response to shear stress, is commonly referred to as the modulus of rigidity. This property quantifies how much a material deforms under shear strain when a shear force is applied. It is defined mathematically as the ratio of shear stress to shear strain within the elastic limit of the material.

Understanding this term is essential in various engineering applications where materials are subjected to twisting forces or shear loads. The modulus of rigidity is particularly relevant in the fields of structural and mechanical engineering, where precise material behavior under stress is critical for design and safety.

The other terms listed serve different purposes in mechanical and materials engineering. For instance, shear elasticity relates closely to shear modulus but is not as commonly used. Poisson's ratio describes the relationship between longitudinal strain and lateral strain in a material, while the modulus of elasticity specifically refers to the ratio of tensile or compressive stress to the corresponding strain, distinctly different from the shear modulus.