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Study of Anti-Symmetric Flexural Mode Propagation along Wedge Tip with a Crack

Authors: Manikanta Prasad Banda, Che Hua Yang

Abstract:

Anti-symmetric wave propagation along the particle motion of the wedge waves is known as anti-symmetric flexural (ASF) modes which travel along the wedge tips of the mid-plane apex with a small truncation. This paper investigates the characteristics of the ASF modes propagation with the wedge tip crack. The simulation and experimental results obtained by a three-dimensional (3-D) finite element model explained the contact acoustic non-linear (CAN) behavior in explicit dynamics in ABAQUS and the ultrasonic non-destructive testing (NDT) method is used for defect detection. The effect of various parameters on its high and low-level conversion modes are known for complex reflections and transmissions involved with direct reflections and transmissions. The results are used to predict the location of crack through complex transmission and reflection coefficients.

Keywords: Crack Detection, finite elements method, ASF mode, laser ultrasound technique, wedge waves

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References:


[1] P. E. Lagasse, “Analysis of a dispersion-free guide for elastic waves,” Electron. Lett. 8, 372–373 (1972).
[2] P. E. Lagasse, I. M. Mason, and E. A. Ash, “Acoustic surface waveguides— analysis and assessment,” IEEE Trans. Sonics Ultrasonic. 20, 225–230 (1973).
[3] J. McKenna, G. D. Boyd, and R. N. Thurston, “Plate theory solution for guided flexural acoustic waves along the tip of a wedge,” IEEE Trans. Sonics Ultrason. 21, 178–186 (1974).
[4] V. V. Krylov, “Wedge elastic waves, with applications to ultrasonic non-destructive testing,” in The British Conference on Non-Destructive Testing (NDT) (2016).
[5] A.C. Hladky-Hennion, “Finite element analysis of the propagation of acoustic waves in waveguides,” J. Sound Vib. 194, 119–136 (1996).
[6] M. V. M. Predoi, M. Ech Cherif El Kettani, Z. Hamitouche, and C. C. Petre, “Guided waves in plates with linear variation of thickness. Acoust. Soc. Am. 123, 5293–5297 (2008).
[7] X. Jia and M. De Billy, “Observation of the dispersion behavior of surface acoustic waves in a wedge waveguide by laser ultrasonics,” Appl. Phys. Lett. 61, 2970–2972 (1992).
[8] V. V. Krylov, II International Symposium on Surface Waves in Solids and Layered Structures (1989).
[9] V. V. Krylov and E. Porteous, “Application of guided flexural waves in immersed plates to aquatic propulsion of mono-hull marine vessels,” J. Acoust. Soc. Am. 123, 387–392 (2008).
[10] C. H. Yang and J. S. Liaw, “Observation of dispersion behavior of acoustic wedge waves propagating along the tip of a circular wedge with laser ultrasonics,” Jpn. J. Appl. Phys. 39, 2741–2743 (2000).
[11] C. H. Yang and C. Z. Tsen, “Laser ultrasound measurement and finite element simulation on the dispersion behaviors of acoustic waves propagating along wedges with bilinear cross section,” IEEE Trans. Ultrason. Ferroelectr. Freq. Control 53, 754–760 (2006).
[12] C. H. Yang and Wen-Chih Wang “Antisymmetric Flexural Modes Propagating along Apex of Piezoelectric Wedges” Japanese Journal of Applied Physics Vol. 46, No. 9A, (2007).
[13] Che-Hua Yang and Ming-I Chen, Seng-Po Tesng, Pei-Yuan Lo “Characterization of wedge waves propagating along wedge tips with defects” Ultrasonics 82 (2018) 289–297, (2017).