bulk modulus of elasticity


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bulk modulus of elasticity

[¦bəlk ′mäj·‚·ləs əv i‚las′tis·əd·ē]
(mechanics)
The ratio of the compressive or tensile force applied to a substance per unit surface area to the change in volume of the substance per unit volume. Also known as bulk modulus; compression modulus; hydrostatic modulus; modulus of compression; modulus of volume elasticity.

bulk modulus of elasticity, modulus of volume elasticity

A number expressing a material’s resistance to elastic changes in volume; the ratio between a pressure that acts on a material (to change its volume) and the fractional change in volume so produced, within the elastic limit of the material.