LeHavreV1, Main, Exploration, bibRecord, 000081

Band structure analysis of leaky Bloch waves in 2D phononic crystal plates.

Identifieur interne : 000081 ( Main/Exploration ); précédent : 000080; suivant : 000082

Band structure analysis of leaky Bloch waves in 2D phononic crystal plates.

Auteurs : Matteo Mazzotti [États-Unis] ; Marco Miniaci [France] ; Ivan Bartoli [États-Unis]

Source :

Ultrasonics [ 1874-9968 ] ; 2016.

RBID : pubmed:27776276

Abstract

A hybrid Finite Element-Plane Wave Expansion method is presented for the band structure analysis of phononic crystal plates with two dimensional lattice that are in contact with acoustic half-spaces. The method enables the computation of both real (propagative) and imaginary (attenuation) components of the Bloch wavenumber at any given frequency. Three numerical applications are presented: a benchmark dispersion analysis for an oil-loaded Titanium isotropic plate, the band structure analysis of a water-loaded Tungsten slab with square cylindrical cavities and a phononic crystal plate composed of Aurum cylinders embedded in an epoxy matrix.

DOI: 10.1016/j.ultras.2016.10.006
PubMed: 27776276

Affiliations:

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en">Band structure analysis of leaky Bloch waves in 2D phononic crystal plates.</title>
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<series><title level="j">Ultrasonics</title>
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<front><div type="abstract" xml:lang="en">A hybrid Finite Element-Plane Wave Expansion method is presented for the band structure analysis of phononic crystal plates with two dimensional lattice that are in contact with acoustic half-spaces. The method enables the computation of both real (propagative) and imaginary (attenuation) components of the Bloch wavenumber at any given frequency. Three numerical applications are presented: a benchmark dispersion analysis for an oil-loaded Titanium isotropic plate, the band structure analysis of a water-loaded Tungsten slab with square cylindrical cavities and a phononic crystal plate composed of Aurum cylinders embedded in an epoxy matrix.</div>
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Band structure analysis of leaky Bloch waves in 2D phononic crystal plates.

Band structure analysis of leaky Bloch waves in 2D phononic crystal plates.

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Abstract

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