Reverberation-ray matrix analysis for wave propagation in multiferroic plates with imperfect interfacial bonding

被引：18
|
作者：
Zhu, Jun [2 ]
Chen, Weiqiu [1 ,3 ]
Ye, Guiru [4 ]
机构：
[1] Zhejiang Univ, Dept Engn Mech, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Mech Engn, Hangzhou 310027, Zhejiang, Peoples R China
[3] Zhejiang Univ, State Key Lab CAD & CG, Hangzhou 310058, Zhejiang, Peoples R China
[4] Zhejiang Univ, Dept Civil Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
ULTRASONICS | 2012年 / 52卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Reverberation-ray matrix analysis; Wave propagation; Multiferroic plates; ELASTIC-WAVES; SURFACE-WAVES; MULTILAYERS; SCATTERING;
D O I：
10.1016/j.ultras.2011.07.004
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The dispersion behavior of waves in multiferroic plates with imperfect interfacial bonding has been investigated via the method of reverberation-ray matrix, which is directly established from the three-dimensional equations of magneto-electro-elasticity in the form of state space formalism. A generalized spring-layer model is employed to characterize the interfacial imperfection. By introducing a dual system of local coordinates for each single layer, the numerical instability usually encountered in the state space method can be avoided. Based on the proposed method, a typical sandwich plate made of piezoelectric and piezomagnetic phases is considered in numerical examples to calculate the dispersion curves and mode shapes. It is demonstrated that the results obtained by the present method is unconditionally stable as compared to the traditional state space method. The influence of different interfacial bonding conditions on the dispersion characteristics and corresponding mode shapes is investigated. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：125 / 132
页数：8
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