Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1811123 | Physica B: Condensed Matter | 2011 | 5 Pages |
Abstract
Using supercell plane wave expansion method, the Lamb wave band structure of one-dimensional thin plate with periodic stubs is investigated. The numerical results show that flat bands will appear and band gap can exist in a low-frequency domain. The position of the flat bands and width of the low-frequency Lamb wave band gap can be tuned by the stub height, plate thickness and filling fraction. The band gap is obtained by opening the folding points of the same plate modes not the crossing point of different plate mode when the stub height is small.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Yuanwei Yao, Zhilin Hou, Fugen Wu, Xin Zhang,