Influence of adhesive layer properties on laser-generated ultrasonic waves in thin bonded plates

被引：3
|
作者：
Sun Hong-Xiang [1 ,2 ,3 ]
Xu Bai-Qiang [1 ]
Zhang Hua [1 ]
Gao Qian [1 ]
Zhang Shu-Yi [2 ,3 ]
机构：
[1] Jiangsu Univ, Fac Sci, Zhenjiang 212013, Peoples R China
[2] Nanjing Univ, Minist Educ, Lab Modern Acoust, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China
来源：
CHINESE PHYSICS B | 2011年 / 20卷 / 01期
基金：
中国国家自然科学基金;
关键词：
laser applications; surface acoustic waves; adhesive bonds; finite element method; FINITE-ELEMENT MODEL; NUMERICAL-SIMULATION; GUIDED-WAVES; QUANTITATIVE THEORY; LAMB WAVES; PROPAGATION;
D O I：
10.1088/1674-1056/20/1/014302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper studies quantitatively the generation of Lamb waves in thin bonded plates subjected to laser illumination,after considering the visco elasticity of the adhesive layer. The displacements of such plates have been calculated in the frequency domain by using the finite element method, and the time domain response has been reconstructed by applying an inverse fast Fourier transform. Numerical results are presented showing the normal surface displacement for several configurations: a single aluminum plate, a three-layer bonded plate, and a two-layer plate. The characteristics of the laser-generated Lamb waves for each particular case have been investigated. In addition, the sensitivity of the transient responses to variations of material properties (elastic modulus, viscoelastic modulus, and thickness)of the adhesive layer has been studied in detail.
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收藏
页数：9
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