# Dictionary:Compliance

(k∂m plī’ ∂ns) The ratio of strain to stress, each with specified directions. Compliance constitutes a tensor of rank four, which is the inverse of the stiffness tensor. It is also expressible as a 6×6 matrix, using Voigt notation :

See main page: Compliance.

For isotropic compliances, see Figure E-5.

See *elastic constants*.

Compliance is the mechanical or acoustical equivalent of electrical capacitance.