Elastic dispersion analysis of two dimensional phononic crystals composed of auxetic materials

Geng Ting Liu, Chia Nien Tsai, I. Ling Chang, Lien Wen Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The wave propagations of two dimensional phononic crystals composed of auxetic materials are studied. The periodic structures consist of square lattice air cylinders in a solid background made of auxetic material. The finite element method and plane wave expansion method are used to obtain the band structures of the phononic crystals. The effects of Poisson's ratio on the elastic wave propagation within the phononic crystal are investigated. The negative Poisson's ratio of the auxetic material is shown to have significant effect on the dispersion of the elastic wave within the periodic structures. The results reveal that the phononic crystals composed of auxetic materials can have a great potential for the design of novel acoustic devices.

Original languageEnglish
Title of host publicationVibration, Acoustics and Wave Propagation
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857564
DOIs
Publication statusPublished - 2015 Jan 1
EventASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States
Duration: 2015 Nov 132015 Nov 19

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume13-2015

Other

OtherASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
Country/TerritoryUnited States
CityHouston
Period15-11-1315-11-19

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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