Lamé constants

Quantities that connect the components of an elastic stress at some point of a linearly-elastic (or solid deformable) isotropic body with the components of the deformation at this point:

where and are the normal and tangential constituents of the stress, are the components of the deformation and the coefficients and are the Lamé constants. The Lamé constants depend on the material and its temperature. The Lamé constants are connected with the elasticity modulus and Poisson's ratio by

is also called Young's modulus and is the modulus of shear.

The Lamé constants are named after G. Lamé.

References

[a1]	E.M. Lifshitz, "Theory of elasticity" , Pergamon (1959) (Translated from Russian)
[a2]	I.S. [I.S. Sokolnikov] Sokolnikoff, "Mathematical theory of elasticity" , McGraw-Hill (1956) (Translated from Russian)
[a3]	S.C. Hunter, "Mechanics of continuous media" , Wiley (1976)