Damage Detection Using Prior Wavelet Decompositions


Article Preview

This work was conducted as part of the European Union project ARTIMA and it investigates the effectiveness of wavelets in damage detection. It examines whether a prior wavelet decomposition of Lamb wave responses facilitates the classification of structural damage. The structure in question is an aluminium plate with viscoelastic-mounted transducers, and the damage took the form of saw cuts on the plate. The novelty detection technique of outlier analysis was used to classify the damage.



Edited by:

L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz




D. Chetwynd et al., "Damage Detection Using Prior Wavelet Decompositions", Key Engineering Materials, Vol. 347, pp. 145-150, 2007

Online since:

September 2007




[1] C.A. Paget, S. Grondel, K. Levin and C. Delebarre: submitted to Smart Materials and Structures, Vol 12, (2003), pp.393-402.

[2] D. Chetwynd, F. Mustapha, K. Worden and J.A. Rongong in: Proceedings of the 3 rd European Workshop on Structural Health Monitoring (EWSHM '06). (2006).

[3] V. Barnett and T. Lewis: Outliers in Statistical Data. (Wiley, Chichester, 1994).

[4] F. Mustapha, G. Manson, S.G. Pierce and K. Worden: submitted to Strain, Vol 41, (2005).