A Continuum Description of Diatomic Systems
In previous works complete dynamical equations of balance for a diatomic crystalline system were obtained by partially linearizing the equations stated for a binary mixture of elastic bodies in absence of diffusion. The method of approximation, similar to one proposed by Signorini within the theory of elasticity, used the hypothesis that the only relative motion between phases was infinitesimal, the mean being finite. Here we describe the theory and then obtain the complete linear equations in the isotropic elastic case; further, we investigate the propagation of plane harmonic waves and compare our results with those of previous models.
KeywordsAverage Displacement Continuum Description Plane Harmonic Wave Isotropic Elastic Body Diatomic System
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