Elastic wave band gaps of one-dimensional phononic crystals with functionally graded materials

Mei Ling Wu, Liang Yu Wu, Wen Pei Yang, Lien-Wen Chen

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The propagation of elastic waves in one-dimensional (1D) phononic crystals (PCs) with functionally graded materials (FGMs) is studied using the spectral finite elements and transfer matrix methods. FGMs typically treat the graded interlayer as a system of discrete layers, and the material properties are varied according to a well-known rule, such as the power law. The 1D PCs are composed of both FGMs and isotropic materials, and their band gaps can be changed with different FGM compositions and geometry parameters. By selecting the appropriate parameters, the desired filters can be designed.

Original languageEnglish
Article number115013
JournalSmart Materials and Structures
Volume18
Issue number11
DOIs
Publication statusPublished - 2009 Nov 9

Fingerprint

Functionally graded materials
Elastic waves
elastic waves
Energy gap
Crystals
matrix methods
crystals
interlayers
filters
Transfer matrix method
propagation
geometry
Materials properties
Geometry
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Civil and Structural Engineering
  • Condensed Matter Physics
  • Mechanics of Materials
  • Materials Science(all)

Cite this

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Elastic wave band gaps of one-dimensional phononic crystals with functionally graded materials. / Wu, Mei Ling; Wu, Liang Yu; Yang, Wen Pei; Chen, Lien-Wen.

In: Smart Materials and Structures, Vol. 18, No. 11, 115013, 09.11.2009.

Research output: Contribution to journalArticle

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