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Influence of adhesive layer properties on laser-generated ultrasonic waves in thin bonded plates |
| Sun Hong-Xiang(孙宏祥)a)b)†, Xu Bai-Qiang(许伯强)a), Zhang Hua(张华)a), Gao Qian(高倩)a), and Zhang Shu-Yi(张淑仪)b) |
| a Faculty of Science, Jiangsu University, Zhenjiang 212013, China; b Laboratory of Modern Acoustics, Ministry of Education, and Institute of Acoustics, Nanjing University, Nanjing 210093, China |
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Abstract This paper studies quantitatively the generation of Lamb waves in thin bonded plates subjected to laser illumination, after considering the viscoelasticity 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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Received: 12 January 2010
Revised: 09 June 2010
Accepted manuscript online:
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PACS:
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43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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42.62.-b
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(Laser applications)
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83.60.Bc
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(Linear viscoelasticity)
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02.70.Dh
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(Finite-element and Galerkin methods)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074125), the Major Project of the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 10KJA140006), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 08KJB140003), and the Student Research Foundation of the Jiangsu University, China (Grant Nos. 2010074 and 09A101). |
Cite this article:
Sun Hong-Xiang(孙宏祥), Xu Bai-Qiang(许伯强), Zhang Hua(张华), Gao Qian(高倩), and Zhang Shu-Yi(张淑仪) Influence of adhesive layer properties on laser-generated ultrasonic waves in thin bonded plates 2011 Chin. Phys. B 20 014302
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