Simulation Study of Damage Identification Method Based on Lamb Wave Scattering in Aluminium Plate

Abstract:

The propagation of scattering Lamb wave in plate was simulated using transient dynamic analysis in ANSYS. In order to extract the characteristic information of received signal for damage identification, the short time Fourier transform based on time-frequency analysis was utilized, and then the energy distribution and envelop of received signal were obtained. Based on the displacement contour of simulation and energy distribution, the propagation of scattering wave in plate with a through hole was examined. Also, a mathematic relationship between damage location and scattering signal was developed, with the help of wave propagation path through actuator, damage and sensor. A nonlinear optimization method was applied on the mathematic relationship to obtain the damage location. The damage identification method using scattering Lamb wave was therefore established.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 2611-2618
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.2611
• Online since: January 2012
• Authors: Zhen Hua Tian, Hong Yuan Li, Hong Xu
• Keywords: Damage Identification, Finite Element Method (FEM), Lamb Wave, Time-Frequency Analysis

References

[1] L. Rayleigh, On Waves Propagating Along the Plane Surface on an Elastic Solid, Proc. London Math. Soc., vol. 17, 1885, p.4–11.

[2] H. Lamb, On Waves in an Elastic Plate, Proc. R. Soc., Ser. A, vol. 93, 1917, p.114–128.

[3] V. Giurgiutiu, A. Zagrai, JJ. Bao, Embedded active sensors for in-situ structural health monitoring of thin-wall structures, J. Pressure Vessel Technol., vol. 124, 2002, p.293–302.

DOI: 10.1115/1.1484117

[4] CH. Wang, JT. Rose, F-K. Chang, A synthetic time-reversal imaging method for structural health monitoring, Smart Mater. Struct., vol. 13, 2004, p.415–423.

DOI: 10.1088/0964-1726/13/2/020

[5] Y. Kim, S. Ha, F-K. Chang, Time-domain spectral element method for built-in piezoelectric-actuator-induced Lamb wave propagation analysis, AIAA J., vol. 46, Mar. 2008, p.591–600.

DOI: 10.2514/1.27046

[6] MJS. Lowe, O. Diligent, Low-frequency reflection characteristics of the S0 Lamb wave from a rectangular notch in a plate, J. Acoust. Soc. Am., vol. 111, 2002, p.64–74.

DOI: 10.1121/1.1424866

[7] T. Hayashi, JL. Rose, Guided wave simulation and visualization by a semianalytical finite element method, Material Evaluation, vol. 61, 2003, p.75–79.

[8] Z. Su, L. Ye, Y. Lu, Guided Lamb waves for identification of damage in composite structures: A review, J. Sound Vib., vol. 295, 2006, p.753–780.

DOI: 10.1016/j.jsv.2006.01.020

[9] J-B. Ihn, F-K Chang, Detection and monitoring of hidden fatigue crack growth using a built-in piezoelectric sensor/actuator network: I. Diagnostics, Smart Mater. Struct., vol. 13, 2004, p.609–620.

DOI: 10.1088/0964-1726/13/3/020

[10] C. Yang, L. Ye, Z. Su, M. Bannister, Some aspects of numerical simulation for Lamb wave propagation in composite laminates, Compos. Struct., vol. 75, 2006, p.267–275.

DOI: 10.1016/j.compstruct.2006.04.034

[11] RD. Cook, DS. Malkus, ME. Plesha, RJ. Witt, Concepts and Applications of Finite Element Analysis, 4th ed., John Wiley & Sons. Inc., (2000).

[12] F. Hlawatsch, F. Auger, Time-Frequency Analysis, John Wiley & Sons. Inc., (2008).

[13] Z. Su, L. Ye, Identification of Damage Using Lamb Waves, Springer, (2009).

[14] SC. Chapra, Applied Numerical Methods with MATLAB for Engineers and Scientists, 2nd ed., McGraw-Hill Inc., (2008).