About: Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper deals with the sensitivity analysis of the acoustic band gaps computed using the homogenized model of strongly heterogeneous elastic, or piezo-elastic composite which is constituted by weakly piezoelectric inclusions periodically distributed in elastic, or piezoelectric matrix. We employ the homogenized model of such medium to compute intervals ? band gaps ? of the incident wave frequencies for which acoustic waves cannot propagate. It was demonstrated that the band gaps distribution can be influenced by changing the shape of inclusions. We focus on the sensitivity analysis of the band gap bounds which are determined using the effective mass tensor of the homogenized medium. The core of the problem lies in sensitivity of the eigenvalue problem associated with the microstructure. We present general sensitivity formulas and treat also the multi-modal cases which arise typically in cases of structural symmetry, namely for elastic materials; numerical illustrations on 2D examples are included. The paper deals with the sensitivity analysis of the acoustic band gaps computed using the homogenized model of strongly heterogeneous elastic, or piezo-elastic composite which is constituted by weakly piezoelectric inclusions periodically distributed in elastic, or piezoelectric matrix. We employ the homogenized model of such medium to compute intervals ? band gaps ? of the incident wave frequencies for which acoustic waves cannot propagate. It was demonstrated that the band gaps distribution can be influenced by changing the shape of inclusions. We focus on the sensitivity analysis of the band gap bounds which are determined using the effective mass tensor of the homogenized medium. The core of the problem lies in sensitivity of the eigenvalue problem associated with the microstructure. We present general sensitivity formulas and treat also the multi-modal cases which arise typically in cases of structural symmetry, namely for elastic materials; numerical illustrations on 2D examples are included. (en)
Title	Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials (en)
skos:prefLabel	Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials (en)
skos:notation	RIV/49777513:23520/09:00501596!RIV10-MSM-23520___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/07/1471), Z(MSM4977751301)
http://linked.open...vai/riv/dodaniDat	2010
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	341036
http://linked.open...ai/riv/idVysledku	RIV/49777513:23520/09:00501596
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sensitivity analysis; eigenvalue problems; phononic materials; homogenization; piezoelectricity (en)
http://linked.open.../riv/klicoveSlovo	eigenvalue problems phononic materials homogenization sensitivity analysis piezoelectricity
http://linked.open...ontrolniKodProRIV	[4426433AB556]
http://linked.open...v/mistoKonaniAkce	Lisabon
http://linked.open...i/riv/mistoVydani	Lisboa
http://linked.open...i/riv/nazevZdroje	WCSMO-8
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (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...iv/tvurceVysledku	Miara, Bernadette Rohan, Eduard
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-06-05 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Spojité a diskrétní matematické struktury a vývoj odpovídajících metod jejich zkoumání
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	APMTAC
https://schema.org/isbn	978-989-20-1554-5
http://localhost/t...ganizacniJednotka	23520
is http://linked.open...avai/riv/vysledek of	Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials Shape sensitivity analysis for material optimization of homogenized piezo-phononic materials

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