Modeling the Propagation of Elastic Ultrasonic Waves in Isotropic and Anisotropic Materials when Excited by Various Sources

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This work is devoted to the investigation of the characteristics of acoustic emission waves to establish their relations with the parameters of the fracture of the structure of the material. The paper presents the results of the analysis of acoustic emission signals recorded during the propagation of ultrasonic waves in metal sheet materials using piezoelectric sensors. The specimen was a rectangular aluminum plate. The piezoelectric sensor recorded acoustic emission signals generated by the Hsu-Nielsen source. The piezoelectric sensor is located in the center of the aluminum plate. Then sources are generated with different hardness to model various kinds of cracks at each specific location. To determine the informative component of a useful acoustic emission signal, the Morlet wavelet transformation was used. When excited by a fracture pencils of different hardness, the magnitude of the wavelet differ in the energy and intensity of the spectrogram.

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Edited by:

Dr. Denis Solovev

Pages:

926-931

Citation:

H. Khon et al., "Modeling the Propagation of Elastic Ultrasonic Waves in Isotropic and Anisotropic Materials when Excited by Various Sources", Materials Science Forum, Vol. 945, pp. 926-931, 2019

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February 2019

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[1] S. Alkiviadis Paipetis, E. Theodore Matikas, G. Dimitrios Aggelis, D.V. Hemelrijck, Emerging Technologies in Non-Destrctive Testing. CRC Press. Taylor & Francis Group. (2012).

DOI: https://doi.org/10.1201/b11837

[2] V.V. Bardakov, V.A. Barat, D.A. Terent'ev, D.V. Chernov, and K.O. Osipov, Peculiarities of applying the AE method in testing bridge constructions, Kontrol. Diagn. 1 (2016) 32–39.

DOI: https://doi.org/10.14489/td.2016.01.pp.032-039

[3] J. Tang, et al., Structural health monitoring methodology for wind turbine blades using acoustic emission, Proc.Cond. Nondestr. Eval. 20(6) (2014).

[4] F.G. Yuan, Structural Health Monitoring (SHM) in Aerospace Structures, Woodhead Publishing, (2016).

[5] M.F. Haider, V.Giurgiutiu, B.Lin, Yu.L, Simulation of lamb wave propagation using excitation potentials, Proceedings of the ASME Pressure Vessels and Piping Conference. 6A(PVP2017-66074 (2017) 7.

DOI: https://doi.org/10.1115/pvp2017-66074

[6] W. Hillger, U. Pfeiffer, Structural Health Monitoring Using Lamb Waves, 9th European Conference on Non-Destructive Testing – ECNDT, Berlin, Germany, (2006).

[7] G.R. Markus Sause, In Situ Monitoring of Fiber-Reinforced Composites, Springer Series in Materials Science 242. Springer. (2016).

DOI: https://doi.org/10.1007/978-3-319-30954-5_5

[8] S. Zhongqing, Y.Lin, Identification of Damage using Lamb Waves, Lecture Notes in Applied and Computational Mechanics. 48 (2009) 346.

DOI: https://doi.org/10.1007/978-1-84882-784-4_1

[9] M.A. Hamstad, Small Diameter Waveguide for Wideeband Acoustic Emission. J. Acoustic Emission. 24 (2006) 234-247.

[10] N.N. Hsu, F.R. Breckenridge, Characterization and calibration of acoustic emission sensors, Mater. Eval. 39 (1981) 60-68.

[11] A. Nielsen, Acoustic Emission Source based on Pencil Lead Breaking, The Danish Welding Institute Publication: Copenhagen, Danmark. (1980) 15-18.

[12] G.R Markus Sause, Investigation of Pencil-lead Breaks As Acoutic Emission Sources, J. Acoustic Emission. 29 (2011) 184-196.

[13] E. Nesvijski, M Marasteanu, Wavelet transform and its applications to acoustic emission analysis of asphalt cold cracking. J. NDT. 12 (2007) 1-13.

[14] H. Suzuki, T. Kinjo, Y. Hayashi, M. Takemoto, K. Ono, Wavelet Transform of Acoustic Emission Signals, J. Acoustic Emission. 14-2 (1996) 69-84.

[15] M.A. Hamstad, A.O. Gallagher, J. Gary, A wavelet transform applied to acoustic emission signals: Part 1: Source identification, J. Acoustic Emission. 20 (2002) 39-61.

[16] M.A. Hamstad, A.O. Gallagher, J. Gary, A wavelet transform applied to acoustic emission signals: Part 2: Source location, J. Acoustic Emission. 20 (2002) 62-82.

[17] O.V. Bashkov, E.E. Parfenov, T.I. Bashkova, A Soft Hardware Complex for Recording and Processing of Acoustic Signal and for Location and Identification of Their Sources, Instrum. Exp. Tech. 53 (2010) 682-687.

DOI: https://doi.org/10.1134/s0020441210050106

[18] H. Lamb. On Waves in an Elastic Plate. Proceedings of the Royal Society, A: Mathematical, Physical and Engineering Sciences. 93 (1917) 114-128.

DOI: https://doi.org/10.1098/rspa.1917.0008

[19] J.L. Rose, Ultrasonic Waves in Solid Media, Cambridge University Press, (1999).

[20] M.A. Hamstad, Acoustic Emission Signals Generated By Monopole (Pencil-Lead Break Versus Dipole Sources: Finite Element Modelling And Experiments, J. Acoustic Emission. 25 (2007) 92-392.

DOI: https://doi.org/10.4028/0-87849-420-0.61