About: Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media

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About: Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper deals with modeling wave dispersion in periodically heterogeneous plates characterized by high contrasts in elastic coefficients. We study two plate models based on the Reissner-Mindlin (R-M) theory and on the Kirchhoff-Love (K-L) theory. Models of homogenized plates were obtained using the two-scale unfolding method with the high contrast ansatz respected by scaling the elasticity coefficients of compliant inclusions. Consequently, dispersion properties are retained in the limit when the scale of the microstructure tends to zero. For some wavelengths, ``mass density'' coefficients can be negative, so that intervals of frequencies exist for which there is no propagation of elastic waves, the so-called band-gaps. Dispersion analysis for guided waves is performed for both types of the plates; occurrence of band gaps for the R-M plates is confirmed using numerical examples, however, the homogenized K-L plate model does not admit band gaps. The paper deals with modeling wave dispersion in periodically heterogeneous plates characterized by high contrasts in elastic coefficients. We study two plate models based on the Reissner-Mindlin (R-M) theory and on the Kirchhoff-Love (K-L) theory. Models of homogenized plates were obtained using the two-scale unfolding method with the high contrast ansatz respected by scaling the elasticity coefficients of compliant inclusions. Consequently, dispersion properties are retained in the limit when the scale of the microstructure tends to zero. For some wavelengths, ``mass density'' coefficients can be negative, so that intervals of frequencies exist for which there is no propagation of elastic waves, the so-called band-gaps. Dispersion analysis for guided waves is performed for both types of the plates; occurrence of band gaps for the R-M plates is confirmed using numerical examples, however, the homogenized K-L plate model does not admit band gaps. (en)
Title	Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media (en)
skos:prefLabel	Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media (en)
skos:notation	RIV/49777513:23520/12:43915768!RIV13-GA0-23520___
http://linked.open...avai/predkladatel	Fakulta aplikovaných věd
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0090), P(GAP101/12/2315)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Rohan, Eduard
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Fakulta aplikovaných věd
http://linked.open...dnocenehoVysledku	175481
http://linked.open...ai/riv/idVysledku	RIV/49777513:23520/12:43915768
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	phononic materials, plate models, homogenization, band gaps, wave dispersion (en)
http://linked.open.../riv/klicoveSlovo	phononic materials wave dispersion homogenization band gaps plate models
http://linked.open...ontrolniKodProRIV	[22B350D6D7E7]
http://linked.open...v/mistoKonaniAkce	Dubrovník
http://linked.open...i/riv/mistoVydani	Dubrovník
http://linked.open...i/riv/nazevZdroje	Proceedings of the Eleventh International Conference on Computational Structures Technology
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Modelling of acoustic wave propagation in strongly heterogeneous media; multi-scale numerical and analytical approaches NTIS - New Technologies for Information Society
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Miara, Bernadette Rohan, Eduard Cimrman, Robert
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-09-04 (xsd:date)
issn	1759-3433
number of pages	19 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Neuveden
https://schema.org/isbn	978-1-905088-54-6
http://localhost/t...ganizacniJednotka	23520
is http://linked.open...avai/riv/vysledek of	Two scale modeling of acoustic waves in phononic plates using homogenization of high-contrast media

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