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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 106
Edited by:
Paper 183

Inverse Analysis for the Adhesion Strength of a Titanium Coating Film using the Laser Spallation Method

M. Arai1, Y. Sato2, N. Sugiura2, M. Nishimura2, H. Ito3 and H. Cho3

1Department of Aerospace Engineering, Nagoya University, Japan
2Department of Mechanical Systems Engineering, Shinshu University, Japan
3Department of Mechanical Engineering, Aoyama Gakuin University, Japan

Full Bibliographic Reference for this paper
M. Arai, Y. Sato, N. Sugiura, M. Nishimura, H. Ito, H. Cho, "Inverse Analysis for the Adhesion Strength of a Titanium Coating Film using the Laser Spallation Method", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 183, 2014. doi:10.4203/ccp.106.183
Keywords: laser ultrasonic waves, inverse analysis, boundary element method, coating film, interfacial strength..

In the present paper, the interfacial adhesion strength between a coating film and an aluminium alloy substrate is evaluated using laser ultrasonic waves and the boundary element method. The adhesion strength can be estimated by inverse analyses using a transfer function from the history of the displacement of the specimen and the boundary element analysis for unsteady three-dimensional vibration. In this paper, an alternative boundary element program has been written for the axisymmetric solid body. With data processing using the Weibull distribution, the interfacial strength between titanium coating film and the aluminium-alloy substrate is confirmed to be 59.2MPa.

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