Investigation of Stoneley Waves in Multilayered Plates
Stoneley waves are interface waves that propagate at the interface between two solid media. In this study, the dispersion characteristics and wave structures of Stoneley waves in elastic multilayered plates are displayed and investigated. With a perspective of bulk wave, a reasonable assumption of the potential function forms of the expansion wave and shear wave in nth layer medium is adopted, and the characteristic equation of Stoneley waves in a three-layered plate is given in a determinant form. The dispersion curves and wave structures are solved and presented in both numerical and simulation results. It is observed that two Stoneley wave modes exist in a three-layered plate, that conspicuous dispersion occurs on low frequency band, that the velocity of each Stoneley wave mode approaches the corresponding Stoneley wave velocity at interface between two half infinite spaces. The wave structures reveal that the in-plane displacement of Stoneley waves are relatively high at interfaces, which shows great potential for interface defects detection.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1112085Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1091
 R. Stoneley, “Elastic waves at the surface of separation of two solids,” Proc. R. Soc. London, vol. 106, pp. 416-428, 1924.
 J. G. Scholte, “The range and existence of Rayleigh and Stoneley waves,” Mon. Not. R. Astron. Soc., vol. 5, pp. 120-126, 1947.
 K. Sezawa, K. Kanai, “The range of possible existence of Stoneley waves and some related problems,” Bull. Earthq. Res. Inst. Tokyo Univ., 17, pp. 1-8, 1939.
 G. S. Murty, “A theoretical model for the attenuation and dispersion of Stoneley waves at the loosely bonded interface of elastic half space,” Phys. Earth Planet. Interiors, vol. 11, no. 1, pp. 65-79, 1975.
 M. A. Goda, “The effect of inhomogeneity and anisotropy on Stoneley waves,” Acta Mech., vol. 93, p. 89-98, 1992.
 Vinh, Pham Chi, Giang, “Uniqueness of Stoneley waves in pre-stressed incompressible elastic media,” Int. J. Non-Linear Mech., vol. 47, pp. 128-134, 2012.
 J. L. Rose, Ultrasonic waves in solid media. Cambridge university press, 2004, ch. 13.
 M. J. S. Lowe, “Matrix techniques for modeling ultrasonic waves in multilayered media,” IEEE Trans. Ultrason. Ferroelectr. Freq. Control, vol. 42, pp. 525-542, 1995.
 B. Li, L. Qiang, T. Lu, “A Stoneley wave method to detect interlaminar damage of metal layer composite pipe,” Frontiers of Mechanical Engineering, vol. 10, no. 1, pp. 89-94, 2015.
 B. Li, X. Geng, T. Lu, M. Li, “Experimental verification of the interface wave method to detect interlaminar damage of a metal multilayer structure,” Frontiers of Mechanical Engineering, vol. 10, no. 4, pp. 380-391, 2015.
 B. Li, P. Duan, L. Qiang, J. Zhuo, “A graphical edge method to solve dispersion Equation of Lamb waves,” Proceedings of the First Symposium on Aviation Maintenance and Management-Volume I, pp. 471-479, 2014.