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Title: Nonlinear evolution of initially sine-like wedge acoustic waves
Authors: Krylov, Victor V.
Mayer, A.P.
Parker, D.F.
Issue Date: 1993
Publisher: © IEEE
Citation: KRYLOV, V.V., MAYER, A.P. and PARKER, D.F., 1993. Nonlinear evolution of initially sine-like wedge acoustic waves. IN: 1993 IEEE Ultrasonics Symposium, Proceedings, Baltimore, MD, 31st Oct-3rd Nov, Vol. 2, pp.765-768.
Abstract: In this paper the nonlinear behaviour of antisymmetric wedge acoustic waves propagating along the tip of a sharp elastic wedge is investigated theoretically. The nonlinear evolution equation is derived taking into account geometrical-acoustics approximation for wedge waves. In contrast to the case of surface acoustic waves for which the quadratic nonlinearity dominates, the lowest order of nonlinearity in this equation is cubic. For arbitrary propagation distances, the numerical solution taking into account 1O interacting wave harmonics has been carried out. The results show that an initially sine-like antisymmetric wedge wave distorts to a wave of trapezoidal form propagating with changed phase velocity.
Description: This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Version: Published
DOI: 10.1109/ULTSYM.1993.339509
URI: https://dspace.lboro.ac.uk/2134/6160
ISBN: 0780320123
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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