On the sonic composites subjected to severe acoustic loads

Transformation acoustics opens a new avenue towards the fabrication of a new class of sonic composites with scatterers made of auxetic materials embedded in the epoxy matrix. The design of the acoustic scatterers is based on the property of Helmoltz equations to be invariant under coordinate transfo...

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Bibliographic Details
Published inProceedings in applied mathematics and mechanics Vol. 14; no. 1; pp. 687 - 688
Main Authors Ilie, Ruxandra, Ioan, Rodica, Brişan, Cornel
Format Journal Article
LanguageEnglish
Published Berlin WILEY-VCH Verlag 01.12.2014
WILEY‐VCH Verlag
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Summary:Transformation acoustics opens a new avenue towards the fabrication of a new class of sonic composites with scatterers made of auxetic materials embedded in the epoxy matrix. The design of the acoustic scatterers is based on the property of Helmoltz equations to be invariant under coordinate transformations, i.e. a specific spatial compression is equivalent to a variation of the material parameters in the original space. In this paper, the noise suppression for a wide full band‐gap of frequencies is discussed for spherical shell scatterers made of auxetic materials. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Bibliography:ArticleID:PAMM201410327
ark:/67375/WNG-V301VBH1-P
istex:4F04F86BD22F8A513F4CC1C2C04CF9DF52B84718
ISSN:1617-7061
1617-7061
DOI:10.1002/pamm.201410327