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Journal article
Band structure analysis of leaky Bloch waves in 2D phononic crystal plates
Ultrasonics, v 74
Feb 2017
PMID: 27776276
Abstract
•A hybrid finite element-plane wave expansion method is proposed.•Phononic crystal plates in contact with acoustic half-spaces are considered.•Complex Bloch wavenumbers are obtained from a nonlinear eigenvalue problem.•Attenuation band diagrams are shown for 1D and 2D phononic crystal plates.
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.
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Details
- Title
- Band structure analysis of leaky Bloch waves in 2D phononic crystal plates
- Creators
- Matteo Mazzotti - Drexel UniversityMarco Miniaci - University of Le HavreIvan Bartoli - Drexel University
- Publication Details
- Ultrasonics, v 74
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000390516800013
- Scopus ID
- 2-s2.0-84993978531
- Other Identifier
- 991019168981404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Acoustics
- Radiology, Nuclear Medicine & Medical Imaging