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Statements

Subject Item

n2:RIV%2F49777513%3A23520%2F09%3A00501534%21RIV10-MSM-23520___

rdf:type

skos:Concept n16:Vysledek

dcterms: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

dcterms:title

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

skos:prefLabel

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

skos:notation

RIV/49777513:23520/09:00501534!RIV10-MSM-23520___

n3:aktivita

n7:P n7:Z

n3:aktivity

P(GA101/07/1471), Z(MSM4977751303)

n3:cisloPeriodika

4

n3:dodaniDat

n15:2010

n3:domaciTvurceVysledku

n17:1351958 n17:2902877

n3:druhVysledku

n9:J

n3:duvernostUdaju

n13:S

n3:entitaPredkladatele

n18:predkladatel

n3:idSjednocenehoVysledku

330239

n3:idVysledku

RIV/49777513:23520/09:00501534

n3:jazykVysledku

n19:eng

n3:klicovaSlova

microstructures; elastic waves; negative mass; dispersion; band gaps; homogenization

n3:klicoveSlovo

n4:microstructures n4:elastic%20waves n4:dispersion n4:band%20gaps n4:negative%20mass n4:homogenization

n3:kodStatuVydavatele

NL - Nizozemsko

n3:kontrolniKodProRIV

[940A7CB664DB]

n3:nazevZdroje

International Journal of Engineering Science

n3:obor

n8:BI

n3:pocetDomacichTvurcuVysledku

2

n3:pocetTvurcuVysledku

3

n3:projekt

n11:GA101%2F07%2F1471

n3:rokUplatneniVysledku

n15:2009

n3:svazekPeriodika

47

n3:tvurceVysledku

Rohan, Eduard Miara, Bernadette Seifrt, František

n3:wos

000264663900007

n3:zamer

n6:MSM4977751303

s:issn

0020-7225

s:numberOfPages

22

n14:organizacniJednotka

23520