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Band structures of elastic waves in two-dimensional eight-fold solid-solid quasi-periodic phononic crystals |
Chen A-Li (陈阿丽), Liang Tong-Li (梁同利), Wang Yue-Sheng (汪越胜) |
Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China |
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Abstract Combined with the supercell method, band structures of the anti-plane and in-plane modes of two-dimensional (2D) eight-fold solid–solid quasi-periodic phononic crystals (QPNCs) are calculated by using the finite element method. The influences of the supercell on the band structure and the wave localization phenomenon are discussed based on the modal distributions. The reason for the appearance of unphysical bands is analyzed. The influence of the incidence angle on the transmission spectrum is also discussed.
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Received: 17 November 2014
Revised: 06 January 2015
Accepted manuscript online:
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PACS:
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61.44.Br
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(Quasicrystals)
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63.20.-e
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(Phonons in crystal lattices)
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63.20.Pw
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(Localized modes)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11272043 and 10902012) and the Project-sponsored by SRF for ROCS, SEM. |
Corresponding Authors:
Chen A-Li
E-mail: alchen@bjtu.edu.cn
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About author: 61.44.Br; 63.20.-e; 63.20.Pw |
Cite this article:
Chen A-Li (陈阿丽), Liang Tong-Li (梁同利), Wang Yue-Sheng (汪越胜) Band structures of elastic waves in two-dimensional eight-fold solid-solid quasi-periodic phononic crystals 2015 Chin. Phys. B 24 066101
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