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Mode Selection of Leaky Lamb Waves in Steel Plate  

Lee, Ju-Won (Department of Ocean Engineering, Pukyong National University)
Kim, Jeong-Tae (Department of Ocean Engineering, Pukyong National University)
Cho, Hyun-Man (Department of Ocean Engineering, Pukyong National University)
Na, Won-Bae (Department of Ocean Engineering, Pukyong National University)
Publication Information
Journal of Ocean Engineering and Technology / v.22, no.1, 2008 , pp. 6-12 More about this Journal
Abstract
The dispersion and attenuation of Lamb and Leaky Lamb waves propagating in a 1 mm-thick steel plate were investigated. For acquiring a long(or large) range inspection capability, the fundamental symmetric and anti-symmetric wave modes(S0 and A0) over law frequencies were studied. Based on the dispersion curves, as well as pitch-catch and multi-mode simulations, it was shown that the S0 mode over law frequencies is the proper mode to minimize the dispersion and attenuation. In addition, it was shown that the S0 mode couldbe easily distinguished under multi-mode simulation since it has a larger group velocity than the A0 mode.
Keywords
Mode Selection; Leaky Lamb Waves; Steel Plate; Nondestructive Testing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Alleyne, D.N. (1991). The Nondestructive Testing of Plates using Ultrasonic Lamb Waves, PhD Thesis, Imperial College London
2 Na, W.B. and Kundu, T. (2002). “Underwater Pipeline Inspection using Guided Waves”, Transactions of the ASME-Journal of Pressure Vessel Technology, Vol 124, pp 196-200   DOI   ScienceOn
3 Pan, E., Rogers, J., Datta, S.K. and Shah, A.H. (1999). “Mode Selection of Guided Waves for Ultrasonic Inspection of Gas Pipeline with Thick Coating”, Mechanics of Materials, Vol 31, pp 165-174   DOI   ScienceOn
4 Pavlakovic, B.N., Lowe, M.J.S., Alleyne, D.N. and Cawley, P. (1997). “Disperse: A General Purpose Program for Creating Dispersion Curves”, Eds. D.O. Thompson and D.E. Chimenti, Review of Progress in Quantitative Nondestructive Evaluation, Vol 18, pp 239-246, Plenum Press, New York
5 Kwun, H., Kim, S.Y., Choi, M.S. and Walker, S.M. (2004). “Torsional Guided-Wave Attenuation in Coal-Tar-Enamel-Coated, Buried Piping”, NDT&E International, Vol 37, pp 663-665   DOI   ScienceOn
6 Alleyne, D.N. and Cawley, P. (1996). "The Excitation of Lamb Waves in Pipes using Dry-Coupled Piezoelectric Transducers", Journal of Nondestructive Evaluation, Vol 15, pp 11-20   DOI
7 Diligent, O. (2003). Interaction Between Fundamental Lamb Modes and Defects in Plates, PhD Thesis, Imperial College London
8 Guo, D. and Kundu, T. (2001). “A New Transducer Holder Mechanism for Pipe Inspection”, Journal of the Acoustical Society of America, Vol 110, pp 303-309   DOI   ScienceOn
9 Na, W.B., Ryu, Y.S., and Kim, J.T. (2005). “Attenuation of Fundarrental Longitudinal Cylindrical Guided Wave Propagating in a liquid-Filled Steel Pipes”, Journal of Ocean Engineering and Technology, Vol 19, No 5, pp 26-33   과학기술학회마을
10 Rose, J.L., Ditri, J.J., Pilarski, A, Rajana, K., and Carr, F. (1994). “A Guided Wave Inspection Technique for Nuclear Steam Generator Tubing”, NDT&E International, Vol 27, pp 307-310   DOI   ScienceOn
11 Wilcox, P., Lowe, M., and Cawley, P. (2001). “The Effect of Dispersion on Long-Range Inspection using Ultrasonic Guided Waves”, NDT&E International, Vol 34, pp 1-9   DOI   ScienceOn
12 Lowe, M. (1995). “Matrix Techniques for Modelling Ultrasonic Waves in Multilayered Media”, IEEE Transactions on Ultrasonics, Ferroelectrics, Frequency Control, Vol 42, pp 525-542   DOI   ScienceOn
13 Na, W.B., Kim, J.T., and Ryu, Y.S. (2006). “Guided-Waves-Based Mortar-Filled Steel Pipe Inspection Using EMAT and Wavelet Transform”, Journal of Ocean Engineering and Technology, Vol 20, No 2, pp 8-15   과학기술학회마을
14 Favestto-Anres, N. and Rabau, G. (1997). “Excitation of the Stoneley-Scholte Wave at the Boundary Between an Ideal Fluid and a Viscoelastic Solid”, Journal of Sound and Vibration, Vol 203, pp 193-208   DOI   ScienceOn