Elastic waves in arrays of elliptic inclusions

被引：3

作者：

Guenneau, S

Movchan, AB

机构：

[1] Univ London Imperial Coll Sci & Technol, Dept Phys, London L69 2AZ, England

[2] Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 2005年 / 220卷 / 9-10期

关键词：

phononic crystals; band diagrams; localisation of elastic waves;

D O I：

10.1524/zkri.2005.220.9-10.906

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We consider in-plane elastic waves propagating through a doubly periodic array of cylinders of Tantalum (with both circular and elliptical cross-sections) which are embedded in a matrix of fused silica. We find some sonic gap for fairly small filling fractions of the cylinders which eventually vanish in the limit of high-filling fraction. In the case of a doubly periodic array of elliptical cylinders, removal of a cylinder within a macro-cell leads to two localised eigenstates.

引用

页码：906 / 911

页数：6

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