Trapping of shear acoustic waves by a near-surface distribution of cavities

C Aristegui, AL Shuvalov, O Poncelet, M Caleap

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)

Abstract

For a halfspace containing random and uniform distribution of empty cylindrical cavities within finite depth beneath the surface, the dispersion spectrum of coherent shear horizontal waves is calculated and analyzed based on the effective-medium approach. The scattering-induced dispersion and attenuation are coupled with the effect of a surface waveguide filled with scatterers. As a result, the obtained spectrum bears certain essential particularities in comparison with the standard Love-wave pattern. Simple analytical estimates enable a direct evaluation of the concentration of scatterers from the dispersion data.
Translated title of the contributionTrapping of shear acoustic waves by a near-surface distribution of cavities
Original languageEnglish
Pages (from-to)628 - 631
Number of pages4
JournalJournal of the Acoustical Society of America
Volume125(2)
DOIs
Publication statusPublished - 2009

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