Wave Propagation in a Microporous Structure for Angled Excitation

被引：0

作者：

Dawson, A. ^{[1
]}

Young, R. ^{[1
]}

Harris, P. ^{[1
]}

机构：

[1] Ind Res Ltd, Lower Hutt, New Zealand

来源：

2011 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2011年

关键词：

microstructure; porous; propagation;

D O I：

10.1109/ULTSYM.2011.0510

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper the antisymmetric excitation of a porous microstructured aluminium layer was investigated using FEA. The generation of two leaky antisymmetric type waves was observed; one similar to a fundamental anti-symmetric A(0) mode and the other a slower A mode. By increasing the microstructure pore widths the velocity of the dispersive A(0) mode decreases and the velocity of the A mode increases. The increased pore width decreases the energy coupling of both modes.

引用

页码：2057 / 2060

页数：4