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

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

研究成果: Conference contribution

摘要

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.

原文English
主出版物標題Vibration, Acoustics and Wave Propagation
發行者American Society of Mechanical Engineers (ASME)
ISBN(電子)9780791857564
DOIs
出版狀態Published - 2015 一月 1
事件ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States
持續時間: 2015 十一月 132015 十一月 19

出版系列

名字ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
13-2015

Other

OtherASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
國家United States
城市Houston
期間15-11-1315-11-19

    指紋

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

引用此

Liu, G. T., Tsai, C. N., Chang, I. L., & Chen, L. W. (2015). Elastic dispersion analysis of two dimensional phononic crystals composed of auxetic materials. 於 Vibration, Acoustics and Wave Propagation (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); 卷 13-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201552920