Ultrasonic band gap in a periodic two-dimensional composite

被引:3
|
作者
de Espinosa, FRM
Jimenez, E
Torres, M
机构
[1] CSIC, Inst Acust, E-28006 Madrid, Spain
[2] CSIC, Inst Fis Aplicada, E-28006 Madrid, Spain
关键词
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The first experimentally observed ultrasonic full band gap in periodic bidimensional composites for the longitudinal wave mode is described in this Letter, The structure consists of an aluminum alloy plate with a square periodic arrangement of cylindrical holes filled with mercury. No propagation wave exists at the frequency range between 1000-1120 kHz irrespective of the measurement direction. The experiment was performed by means of an ultrasonic transmission technique, and a measurement of the position dependence of the acoustic amplitude was also performed. [S0031-9007(97)05225-3].
引用
收藏
页码:1208 / 1211
页数:4
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