Smart Structures and Systems

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On time reversal-based signal enhancement for active lamb wave-based damage identification

  • Wang, Qiang (School of Automation, Nanjing University of Posts and Telecommunications) ;
  • Yuan, Shenfang (The Aeronautical Science Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics) ;
  • Hong, Ming (Department of Mechanical Engineering, The Hong Kong Polytechnic University) ;
  • Su, Zhongqing (Department of Mechanical Engineering, The Hong Kong Polytechnic University)
  • Received : 2013.10.26
  • Accepted : 2014.03.10
  • Published : 2015.06.25
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Abstract

Lamb waves have been a promising candidate for quantitative damage identification for various engineering structures, taking advantage of their superb capabilities of traveling for long distances with fast propagation and low attenuation. However, the application of Lamb waves in damage identification so far has been hampered by the fact that the characteristic signals associated with defects are generally weaker compared with those arising from boundary reflections, mode conversions and environmental noises, making it a tough task to achieve satisfactory damage identification from the time series. With awareness of this challenge, this paper proposes a time reversal-based technique to enhance the strength of damage-scattered signals, which has been previously applied to bulk wave-based damage detection successfully. The investigation includes (i) an analysis of Lamb wave propagation in a plate, generated by PZT patches mounted on the structure; (ii) an introduction of the time reversal theory dedicated for waveform reconstruction with a narrow-band input; (iii) a process of enhancing damage-scattered signals based on time reversal focalization; and (iv) the experimental investigation of the proposed approach to enhance the damage identification on a composite plate. The results have demonstrated that signals scattered by delamination in the composite plate can be enhanced remarkably with the assistance of the proposed process, benefiting from which the damage in the plate is identified with ease and high precision.

Keywords

References

  1. Bardos, C. and Fink, M. (2002), "Mathematical foundations of the time reversal mirror", Asymptotic Anal., 29, 157-182.
  2. Boller, C. (2000), "Next generation structural health monitoring and its integration into aircraft design", Int. J. Syst. Sci., 31(11), 1333-1349. https://doi.org/10.1080/00207720050197730
  3. Draeger, C., Cassereau, D. and Fink, M. (1997), "Theory of the time-reversal process in solids", J. Acoust. Soc. Am., 102(3), 1289-1295. https://doi.org/10.1121/1.420094
  4. Fink, M. (1999), "Time-reversed acoustics", Sci. Am., 281(5), 91-97. https://doi.org/10.1038/scientificamerican1199-91
  5. Fink, M. and Lewiner, J. (2000), "Method and device for detecting and locating a reflecting sound source", Patent US 6,161,434.
  6. Gangadharan, R., Murthy, C.R.L., Gopalakrishnan, S. and Bhat M.R. (2009), "Time reversal technique for health monitoring of metallic structure using Lamb waves", Ultrasonics, 49, 696-705. https://doi.org/10.1016/j.ultras.2009.05.002
  7. Giurgiutiu, V. (2000), "Active sensors for health monitoring of aging aerospace structures", Proceedings of the SPIE 7th International Symposium on Smart Structures and Materials and 5th International Symposium on Nondestructive Evaluation and Health Monitoring of Aging Infrastructure, Newport Beach, California, March.
  8. Ing, R.K. and Fink, M. (1998), "Time reversed Lamb waves", IEEE T. Ultrason. Ferr., 45(4), 1032-1043. https://doi.org/10.1109/58.710586
  9. Jeong, H. (2009), "Time reversal study of ultrasonic waves for anisotropic solids using a Gaussian beam model", NDT&E Int., 42, 210-214. https://doi.org/10.1016/j.ndteint.2008.09.010
  10. Park, H.W., Kim, S.B. and Sohn, H. (2009), "Understanding a time reversal process in Lamb wave propagation", Wave Motion, 46(7), 451-467. https://doi.org/10.1016/j.wavemoti.2009.04.004
  11. Qiu, L. and Yuan, S. (2009), "On development of a multi-channel PZT array scanning system and its evaluating application on UAV wing box", Sensor Actuat. A-phys., 151(2), 220-230. https://doi.org/10.1016/j.sna.2009.02.032
  12. Ratneshwar, J. and Ryan, W. (2009), "Lamb wave based diagnostics of composite plates using modified time reversal method", Proceedings of the 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, California, May.
  13. Song, H.C., Hodgkiss, W.S., Kuperman, W.A., Higley, W.J., Raghukumar, K., Akal, T. and Stevenson, M. (2006), "Spatial diversity in passive time reversal communications", J. Acoust. Soc. Am., 120(4), 2067-2076. https://doi.org/10.1121/1.2338286
  14. Wang, C.H., Rose, J.T. and Chang, F.K. (2004), "A synthetic time-reversal imaging method for structural health monitoring", Smart Mater. Struct., 13(2), 415-423. https://doi.org/10.1088/0964-1726/13/2/020
  15. Xu, B. and Giurgiutiu, V. (2007), "Single mode tuning effects on Lamb wave time reversal with piezoelectric wafer active sensors for structural health monitoring", J. Nondestruct. Eval., 26(2-4), 123-134. https://doi.org/10.1007/s10921-007-0027-8
  16. Yu, L., Bottai-Santoni, G. and Giurgiutiu, V. (2010), "Shear lag solution for tuning ultrasonic piezoelectric wafer active sensors with applications to Lamb wave array imaging", Int. J. Eng. Sci., 48(10), 848-861. https://doi.org/10.1016/j.ijengsci.2010.05.007
  17. Yuan, S., Wang, L. and Shi, L. (2003), "On-line damage monitoring in composite structures", J. Vib. Acoust., 125, 178-186. https://doi.org/10.1115/1.1547464
  18. Zhang, H., Chen, X., Cao, Y. and Yu, J. (2010), "Focusing of time reversal Lamb waves and its applications in structural health monitoring", Chinese Phys. Lett., 27(10), 104301. https://doi.org/10.1088/0256-307X/27/10/104301

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