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  • We consider a composite medium made of weakly piezoelectric inclusionsperiodically distributed in the matrix which is made of a different piezoelectricmaterial. The medium is subject to a periodic excitation with an incidence wave frequency independent of scale of the microscopic heterogeneities. Two-scale method of homogenization was applied to obtain the limit homogenized model which describes acoustic wave propagation in the piezoelectric medium when the scale of the heterogeneities goes to zero. In analogy with the purely elastic composite, the resulting model is featured by existence of the acoustic band gaps. These are identified for certain frequency ranges whenever the so-called homogenized mass becomes negative. The homogenized model can be used for band gap prediction and for dispersion analysis for low wave numbers. Modeling of these types of composite materials seems to be perspective in the context of Smart Materials design.
  • We consider a composite medium made of weakly piezoelectric inclusionsperiodically distributed in the matrix which is made of a different piezoelectricmaterial. The medium is subject to a periodic excitation with an incidence wave frequency independent of scale of the microscopic heterogeneities. Two-scale method of homogenization was applied to obtain the limit homogenized model which describes acoustic wave propagation in the piezoelectric medium when the scale of the heterogeneities goes to zero. In analogy with the purely elastic composite, the resulting model is featured by existence of the acoustic band gaps. These are identified for certain frequency ranges whenever the so-called homogenized mass becomes negative. The homogenized model can be used for band gap prediction and for dispersion analysis for low wave numbers. Modeling of these types of composite materials seems to be perspective in the context of Smart Materials design. (en)
Title
  • Dispersion properties in homogenized piezoelectric phononic materials
  • Dispersion properties in homogenized piezoelectric phononic materials (en)
skos:prefLabel
  • Dispersion properties in homogenized piezoelectric phononic materials
  • Dispersion properties in homogenized piezoelectric phononic materials (en)
skos:notation
  • RIV/49777513:23520/09:00501582!RIV10-MSM-23520___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/07/1471), Z(MSM4977751301)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 310775
http://linked.open...ai/riv/idVysledku
  • RIV/49777513:23520/09:00501582
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Dispersion; phononic materials; homogenization; acoustic waves (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [F84CC9F870EF]
http://linked.open...v/mistoKonaniAkce
  • Svratka
http://linked.open...i/riv/mistoVydani
  • Prague
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics 2009
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Rohan, Eduard
  • Cimrman, Robert
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Ústav teoretické a aplikované mechaniky AV ČR
https://schema.org/isbn
  • 978-80-86246-35-2
http://localhost/t...ganizacniJednotka
  • 23520
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