Large one-dimensional band gaps in three-component phononic crystals plates

被引：21
|
作者：
Chen, Jiu-Jiu [1 ]
Chan, H. L. W.
Cheng, Jian-Chun
机构：
[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
[2] Nanjing Univ, Lab Modern Acoust, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China
来源：
PHYSICS LETTERS A | 2007年 / 366卷 / 4-5期
关键词：
phononic crystals; lamb wave; band gap; PERIODIC ELASTIC COMPOSITES; THIN PLATES; LAMB WAVES; SURFACE;
D O I：
10.1016/j.physleta.2007.02.034
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using the plane-wave expansion method, we study the propagation of Lamb wave mode in three-component phononic crystals plates. The influence of filling fraction, material parameters and especially the ratio of the thickness of the plates to the lattice period on the band gaps of Lamb wave mode are analyzed by numerical simulations. The optimum gap is obtained by tuning the thickness of the plates and the filling fraction. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：493 / 496
页数：4
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