Antiplane surface acoustic waves propagating in elastic half-space coated with an anisotropic laminate

被引：4

作者：

Wu, XF ^{[1
]}

Dzenis, YA ^{[1
]}

机构：

[1] Univ Nebraska, Ctr Mat Res & Anal, Dept Engn Mech, Lincoln, NE 68588 USA

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2005年 / 65卷 / 11-12期

关键词：

anisotropic elasticity; Stroh's formalism; surface acoustic waves (SAWs); dispersion relation; composite laminate; anisotropic coatings;

D O I：

10.1016/j.compscitech.2005.03.003

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Dispersion relation of antiplane surface acoustic waves (SAWs) propagating in elastic half-space coated with an anisotropic laminate was determined explicitly by means of Stroh's formalism within the Subsonic range, where is no energy leakage into the substrate. During the procedure, the governing dynamic equation in each anisotropic layer and the displacement-traction continuity at interfaces were exactly satisfied by Stroh's functions. Explicit algebraic equation was derived for determining the dispersion relation. As an example, the wave number vs. phase velocity diagram for steel half-space coated with a graphite-fiber/epoxy laminate with a [+/- 45 degrees/0 degrees(2)] lay-up was demonstrated. The given method can be used for the study of SAW properties of anisotropic coating systems and non-destructive evaluation based on surface/guided wave methods. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1761 / 1768

页数：8

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