Unlimited isotropic solid. Potentials
Acoustics - Propagation in a solid

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AF3814 V1 Article

Unlimited isotropic solid. Potentials
Acoustics - Propagation in a solid

Authors : Daniel ROYER, Eugène DIEULESAINT

Review date: October 21, 2019 | Lire en français

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2. Unlimited isotropic solid. Potentials

In this case, according to relation 94 of [AF 3 812], the relation (3) is written :

Tij = λSδij + 2µSij.( 4 )

The two independent coefficients λ and µ (expressed in GPa) are referred to here as Lamé constants. This pair of constants characterizing the isotropy of the material can be replaced by another: Young's modulus (Y ) and Poisson's ratio (ν) or by two elastic constants c1111 and c1122, in matrix notation c11 and c12. These coefficients...

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