From the Somigliana waves to the evanescent waves

P. CALOI

Abstract


The Rayleigh equation has real coefficients; therefore,
also the case of complex conjugated roots may be explained physically.
The Author proves t h a t the Somigliana waves may be formed for Poisson
ratio values until 0.30543; for gradually less rigid media, they are missing
altogether and degenerate into evanescent waves.

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DOI: https://doi.org/10.4401/ag-5116

Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X