Guided Wavefield Images Filtering for Damage Localization

Article Preview

Abstract:

The goal of this paper is to develop a new method of filtering and processing of guided wavefield images acquired by the laser vibrometers. The concept is tested on both numerical results and experimental data obtained from measurements of aluminium alloy plate which notch cuts. Results were compared with RMS based maps for different excitation frequencies.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

92-98

Citation:

Online since:

June 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] V. Giurgiutiu, Structural Health Monitoring with piezoelectric wafer active sensors. Academic Press, Elsevier Inc, 2008.

Google Scholar

[2] M. Kehlenbach, B. Kohler, X. Cao, H. Hanselka, Numerical and Experimental Investigation of Lamb Wave Interaction with Discontinuities, Struc. health monit.: from diagnostics & prognostics to Struc. Health Mng. (2003) 421-8.

Google Scholar

[3] F. Schubert, A Conceptual Study on Guided Wave Based Imaging Techniques for SHM with Distributed Transducer Array, Proc. Struc. Health Monit. (2008), 748–757.

Google Scholar

[4] P. Kudela, W. Ostachowicz, A. Żak, Damage detection in composite plates with embedded PZT transducers, Mech. Syst. Signal Pr. 22 (2008), 1327–1335.

DOI: 10.1016/j.ymssp.2007.07.008

Google Scholar

[5] L. Mallet B.C. Lee, W.J. Staszewski, F. Scarpa, Structural health monitoring using scanning laser vibrometry: II. Lamb waves for damage detection, Smart Mat. and Str. 13 (2004) 261-9

DOI: 10.1088/0964-1726/13/2/003

Google Scholar

[6] M. Ruzzene, S.M. Jeong, T. Michaels, J. Michaels, B. Mi, Simulation and measurement of ultrasonic waves in elastic plates using laser vibrometry, Rev. of Qunt. Nondestr. Eval., 24 (2005), 172-179.

DOI: 10.1063/1.1916675

Google Scholar

[7] M. Radzieński, Ł. Doliński, M. Krawczuk, A. Żak, W. Ostachowicz, Application of RMS for damage detection by guided elastic waves, J. Phys.: Conf. Ser. 305 (2011), 012085 1-10.

DOI: 10.1088/1742-6596/305/1/012085

Google Scholar