Paper Titles
Identification of Discontinuities in Composite Rods and Beams Based on Lamb Wave Propagation
p.517
Application of Statistical Energy Analysis for Damage Detection in Spacecraft Structures
p.525
Experimental and Numerical Investigation of Wave Propagation in Composite Beam with an Additional Mass
p.533
A Combined Finite and Spectral Element Approach to Wave Scattering in a Cracked Beam: Modelling and Validation
p.541
Tracking of Cracks in Airplane Components Using Nonlinear Surface Wave Propagation Techniques
p.549
Wave Propagation Based Multi-Crack Identification in Beam Structures through Anti-Resonances Information
p.557
Damage Detection in Circular Cylindrical Shells by Frequency Sensitivities and Mode Shapes
p.565
Health Monitoring: New Techniques Based on Vibrations Measurements and Identification Algorithms on an Aeronautical Composite Panel
p.575
Identification of Damage in Composite Structures Using Thermoelastic Stress Analysis
p.583

Tracking of Cracks in Airplane Components Using Nonlinear Surface Wave Propagation Techniques

Article Preview

Abstract:

Ultrasonic surface waves provide a sensitive means to detect cracks in airplane structures. Until now several obstacles remained to use ultrasonic surface waves for on-line damage detection (i.e. in-flight). In this article a method will be proposed to detect a growing fatigue crack while the aircraft is operating. In contrast to classical ultrasonic measurement methods, that use a high voltage pulse, we applied an optimized multi-sine excitation signal with an amplitude of a few volts only (this agrees better with the applicable safety regulations for aircraft). Furthermore, an indicator quantifying the nonlinearity of the ultrasonic surface wave propagation is used. By using a nonlinearity index the influence of changing operation conditions that can be observed with most linear methods is eliminated. The proposed method is validated on a steel beam that is fatigue loaded with a force signal obtained from in-flight data.

You might also be interested in these eBooks
Damage Assessment of Structures VI View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 293-294)

Pages:

549-556

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.293-294.549

Citation:

Cite this paper

Online since:

September 2005

Authors:

Steve Vanlanduit, Patrick Guillaume, Jimmy Vermeulen, Kristof Harri

Keywords:

Nonlinear, On-Line Fatigue Crack Detection, Ultrasonic Surface Waves

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] L. Cartz: Nondestructive testing (ASM International, 1995).

Google Scholar

[2] FAA: Aircraft Inspection, Repair and Alterations (Aviation Supplies and Academics, 2001).

Google Scholar

[3] G. Clark, J. F. Knot: Journal Mech. Phys. Vol. 23 (1975) p.265.

Google Scholar

[4] I. G. Scott: Basic Acoustic Emission (Nondestructive Testing Monographs and Tracts, Vol. 6), Taylor and Francis.

Google Scholar

[5] S. Vanlanduit, P. Verboven, P. Guillaume: Journal of Sound and Vibration Vol. 266(4) (2003), p.805.

Google Scholar

[6] I. A. Viktorov: Rayleigh and Lamb waves (Plenum, New York).

Google Scholar

[7] U. B. Halabe, R. Franklin: Materials Evaluation Vol. 59 (2001), p.424.

Google Scholar

[8] B. Zurn, S. C. Mantell: Journal of Composite Materials Vol. 35 (2001) 1026.

Google Scholar

[9] J. S. Popovics, W. Song, M. Ghandehari, K. V. Subramaniam, J. D. Achenbach, S. P. Shah: American Concrete Institute (ACI) Materials Journal Vol. 97(2) (2000), p.127.

Google Scholar

[10] S. Vanlanduit, P. Guillaume, G. Van der Linden: Key Eng. Mat. Vol. 245(2) (2003), p.27.

Google Scholar

[11] S. Vanlanduit, P. Guillaume and G. Van Der Linden: NDT&E International, Vol. 36(8) (2003), p.601.

Google Scholar

[12] S. Vanlanduit, P. Guillaume: International Journal on Fatigue Vol. 26(1) (2004), p.95.

Google Scholar

[13] P. Guillaume, J. Schoukens, R. Pintelon, and I. Kollar: IEEE Trans. Instr. Meas. Vol. 40 (1991), p.982.

DOI: 10.1109/19.119778

Google Scholar

[14] L. W. Schmerr: Fundamentals of ultrasonic nondestructive evaluation: a modeling approach (Plenum Press, London 1998).

Google Scholar