On the effect of a viscous fluid on quasi-Lamb waves in an elastic layer that interacts with a liquid layer

1Bahno, OM
1S.P. Timoshenko Institute of Mechanics of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2016, 4:41-48
https://doi.org/10.15407/dopovidi2016.04.041
Section: Mechanics
Language: Russian
Abstract: 

On the base of the three–dimensional linearized Navier–Stokes equations for viscous fluid and linear equations of the classical theory of elasticity for an elastic layer, the dispersion curves are constructed, and the propagation of quasi-Lamb waves within the wide range of frequencies is studied. The effects of the viscosity of a fluid and the thickness of elastic and fluid layers on the phase velocities and the attenuation coefficients of quasi–Lamb modes are analyzed. The numerical results are presented in the form of graphs, and their analysis is given.

Keywords: dispersion of waves, elastic layer, layer of a viscous compressible fluid, quasi-Lamb modes
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