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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 106
PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY 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
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..
Summary
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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