Elastic wave band gaps of one-dimensional phononic crystals with functionally graded materials
| Autor: | Wen Pei Yang, Liang Yu Wu, Mei Ling Wu, Lien Wen Chen |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Wave propagation Band gap business.industry Isotropy Transfer-matrix method (optics) Condensed Matter Physics Transfer matrix Atomic and Molecular Physics and Optics Finite element method Optics Mechanics of Materials Signal Processing General Materials Science Electrical and Electronic Engineering Composite material Spectral method business Material properties Civil and Structural Engineering |
| Zdroj: | Smart Materials and Structures. 18:115013 |
| ISSN: | 1361-665X 0964-1726 |
| DOI: | 10.1088/0964-1726/18/11/115013 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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