About: Numerical simulation of acoustic band gaps in homogenized elastic composites

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The dispersion of acoustic or elastodynamic waves in elastic composites are studied using the homogenized model. We consider heterogeneous periodic structures consisting of soft but heavy inclusions embedded in a stiffer matrix. By virtue of the asymptotic homogenization technique in conjunction with an appropriate scaling of the elasticity coefficients in the inclusions, the limit model exhibits the band gaps in wave propagation due to the negative effective mass. This phenomenon can be revealed by studying guided waves in discrete mass-spring structures with scale-dependent parameters. The main purpose of the paper is to justify the applicability of the homogenized model of the heterogeneous elastic continuum for prediction of the band gaps in structures featured by a finite scale of heterogeneities. We show the band gaps numerical identification and discus aspects of anisotropy, microstructure geometry and material contrast between the constituents in the context of the long wave dis The dispersion of acoustic or elastodynamic waves in elastic composites are studied using the homogenized model. We consider heterogeneous periodic structures consisting of soft but heavy inclusions embedded in a stiffer matrix. By virtue of the asymptotic homogenization technique in conjunction with an appropriate scaling of the elasticity coefficients in the inclusions, the limit model exhibits the band gaps in wave propagation due to the negative effective mass. This phenomenon can be revealed by studying guided waves in discrete mass-spring structures with scale-dependent parameters. The main purpose of the paper is to justify the applicability of the homogenized model of the heterogeneous elastic continuum for prediction of the band gaps in structures featured by a finite scale of heterogeneities. We show the band gaps numerical identification and discus aspects of anisotropy, microstructure geometry and material contrast between the constituents in the context of the long wave dis (en)
Title	Numerical simulation of acoustic band gaps in homogenized elastic composites Numerical simulation of acoustic band gaps in homogenized elastic composites (en)
skos:prefLabel	Numerical simulation of acoustic band gaps in homogenized elastic composites Numerical simulation of acoustic band gaps in homogenized elastic composites (en)
skos:notation	RIV/49777513:23520/09:00501534!RIV10-MSM-23520___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/07/1471), Z(MSM4977751303)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Seifrt, František Rohan, Eduard
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	330239
http://linked.open...ai/riv/idVysledku	RIV/49777513:23520/09:00501534
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	microstructures; elastic waves; negative mass; dispersion; band gaps; homogenization (en)
http://linked.open.../riv/klicoveSlovo	negative mass microstructures homogenization band gaps dispersion elastic waves
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[940A7CB664DB]
http://linked.open...i/riv/nazevZdroje	International Journal of Engineering Science
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Finite element modelling of linear, non-linear and multiscale effects in wave propagation in solids and heterogeneous media
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Miara, Bernadette Rohan, Eduard Seifrt, František
http://linked.open...ain/vavai/riv/wos	000264663900007
http://linked.open...n/vavai/riv/zamer	Predikce poruch heterogenních materiálů, komponent mechanických a biomechanických systémů.
issn	0020-7225
number of pages	22 (xsd:int)
http://localhost/t...ganizacniJednotka	23520
is http://linked.open...avai/riv/vysledek of	Numerical simulation of acoustic band gaps in homogenized elastic composites Numerical simulation of acoustic band gaps in homogenized elastic composites Numerical simulation of acoustic band gaps in homogenized elastic composites Numerical simulation of acoustic band gaps in homogenized elastic composites

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