Elastic wave propagation in symmetrically periodic sinusoidal waveguide

被引：6
|
作者：
Banerjee, S [1 ]
Kundu, T [1 ]
机构：
[1] Univ Arizona, Dept Civil Engn & Engn Mech, Tucson, AZ 85721 USA
来源：
HEALTH MONITORING AND SMART NONDESTRUCTIVE EVALUATION OF STRUCTURAL AND BIOLOGICAL SYSTEM III | 2004年 / 5394卷
关键词：
sinusoidal waveguide; dispersion relation; mode conversion; stop-band; pass-band; wave-number;
D O I：
10.1117/12.540009
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Wave propagation in structures with irregular boundaries is studied by transforming the plates with irregular surfaces to sinusoidal wave-guides. Guided elastic wave in a two-dimensional periodically corrugated plate is studied analytically. The plate material is considered as homogeneous, isotropic and linearly elastic. In a periodically corrugated wave-guide all possible spectral order of wave numbers are considered. The dispersion equation is obtained by applying the traction free boundary conditions. The analysis is carried out in the wave-number domain for symmetric modes. Non-propagating 'stop bands' and propagating 'pass bands' are investigated.
引用
收藏
页码：89 / 98
页数：10
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