{"title":"Study of Anti-Symmetric Flexural Mode Propagation along Wedge Tip with a Crack","authors":"Manikanta Prasad Banda, Che Hua Yang","volume":169,"journal":"International Journal of Civil and Environmental Engineering","pagesStart":19,"pagesEnd":24,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10011764","abstract":"<p>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.<\/p>\r\n","references":"[1]\tP. E. Lagasse, \u201cAnalysis of a dispersion-free guide for elastic waves,\u201d Electron. Lett. 8, 372\u2013373 (1972). \r\n[2]\tP. E. Lagasse, I. M. Mason, and E. A. Ash, \u201cAcoustic surface waveguides\u2014 analysis and assessment,\u201d IEEE Trans. Sonics Ultrasonic. 20, 225\u2013230 (1973). \r\n[3]\tJ. McKenna, G. D. Boyd, and R. N. Thurston, \u201cPlate theory solution for guided flexural acoustic waves along the tip of a wedge,\u201d IEEE Trans. Sonics Ultrason. 21, 178\u2013186 (1974). \r\n[4]\tV. V. Krylov, \u201cWedge elastic waves, with applications to ultrasonic non-destructive testing,\u201d in The British Conference on Non-Destructive Testing (NDT) (2016). \r\n[5]\tA.C. Hladky-Hennion, \u201cFinite element analysis of the propagation of acoustic waves in waveguides,\u201d J. Sound Vib. 194, 119\u2013136 (1996). \r\n[6]\tM. V. M. Predoi, M. Ech Cherif El Kettani, Z. Hamitouche, and C. C. Petre, \u201cGuided waves in plates with linear variation of thickness. Acoust. Soc. Am. 123, 5293\u20135297 (2008).\r\n[7]\tX. Jia and M. De Billy, \u201cObservation of the dispersion behavior of surface acoustic waves in a wedge waveguide by laser ultrasonics,\u201d Appl. Phys. Lett. 61, 2970\u20132972 (1992). \r\n[8]\tV. V. Krylov, II International Symposium on Surface Waves in Solids and Layered Structures (1989). \r\n[9]\tV. V. Krylov and E. Porteous, \u201cApplication of guided flexural waves in immersed plates to aquatic propulsion of mono-hull marine vessels,\u201d J. Acoust. Soc. Am. 123, 387\u2013392 (2008). \r\n[10]\tC. H. Yang and J. S. Liaw, \u201cObservation of dispersion behavior of acoustic wedge waves propagating along the tip of a circular wedge with laser ultrasonics,\u201d Jpn. J. Appl. Phys. 39, 2741\u20132743 (2000). \r\n[11]\tC. H. Yang and C. Z. Tsen, \u201cLaser ultrasound measurement and finite element simulation on the dispersion behaviors of acoustic waves propagating along wedges with bilinear cross section,\u201d IEEE Trans. Ultrason. Ferroelectr. Freq. Control 53, 754\u2013760 (2006). \r\n[12]\tC. H. Yang and Wen-Chih Wang \u201cAntisymmetric Flexural Modes Propagating along Apex of Piezoelectric Wedges\u201d Japanese Journal of Applied Physics Vol. 46, No. 9A, (2007). \r\n[13]\tChe-Hua Yang and Ming-I Chen, Seng-Po Tesng, Pei-Yuan Lo \u201cCharacterization of wedge waves propagating along wedge tips with defects\u201d Ultrasonics 82 (2018) 289\u2013297, (2017).","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 169, 2021"}