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  • We consider a composite medium made of weakly piezoelectric inclusions periodically distributed in the matrix which is made of a different piezoelectric material. The medium is subject to a periodic excitation with an incidence wave frequency independent of scale veps of the microscopic heterogeneities. Two-scale method of homogenization is applied to obtain the limit homogenized model which describes acoustic wave propagation in the piezoelectric medium when $\veps \rightarrow 0$. In analogy with the purely elastic composite, the resulting model allows 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 such composite materials seems to be perspective in the context of Smart Materials design.
  • We consider a composite medium made of weakly piezoelectric inclusions periodically distributed in the matrix which is made of a different piezoelectric material. The medium is subject to a periodic excitation with an incidence wave frequency independent of scale veps of the microscopic heterogeneities. Two-scale method of homogenization is applied to obtain the limit homogenized model which describes acoustic wave propagation in the piezoelectric medium when $\veps \rightarrow 0$. In analogy with the purely elastic composite, the resulting model allows 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 such composite materials seems to be perspective in the context of Smart Materials design. (en)
Title
  • On acoustic band gaps in homogenized piezoelectric phononic materials
  • On acoustic band gaps in homogenized piezoelectric phononic materials (en)
skos:prefLabel
  • On acoustic band gaps in homogenized piezoelectric phononic materials
  • On acoustic band gaps in homogenized piezoelectric phononic materials (en)
skos:notation
  • RIV/49777513:23520/10:00503486!RIV11-GA0-23520___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/07/1471), Z(MSM4977751303)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
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  • 276645
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  • RIV/49777513:23520/10:00503486
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • phononic material; acoustic band gap; piezoelectric material; homogenization (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [841856099214]
http://linked.open...i/riv/nazevZdroje
  • Applied and Computational Mechanics
http://linked.open...in/vavai/riv/obor
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 4
http://linked.open...iv/tvurceVysledku
  • Rohan, Eduard
  • Cimrman, Robert
http://linked.open...n/vavai/riv/zamer
issn
  • 1802-680X
number of pages
http://localhost/t...ganizacniJednotka
  • 23520
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