Krylov IEEE IUS 2019 - postprint 01.pdf (464.58 kB)
On the theory of smooth topographic waveguides for Rayleigh waves
conference contribution
posted on 2019-11-05, 09:27 authored by Victor V. KrylovIn the present paper, it is demonstrated that the existence of guided modes of Rayleigh waves on some types of smooth solid surfaces, often called 'smooth topographic waveguides', can take place under the condition of total internal reflection of Rayleigh waves from the 'external' areas of surfaces surrounding the 'internal' areas of wave localisation. In the framework of the geometrical acoustics approximation, the possibility of total internal reflection of Rayleigh waves in smooth topographic structures of complex geometry is linked to the presence of internal areas on the surfaces characterised by the geometry-modified angular-dependent local phase velocities of Rayleigh waves that are smaller in the direction of guided wave propagation than their velocities in the surrounding external areas. The above-mentioned condition of wave localisation is illustrated by theoretical calculations of the dispersion curves of guided waves for several examples of guided wave propagation. The obtained results for the dispersion curves of localised waves are compared with the known solutions, where available.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
2019 IEEE International Ultrasonics Symposium (IUS)Pages
2198 - 2201Source
IEEE International Ultrasonics Symposium 2019Publisher
IEEEVersion
- AM (Accepted Manuscript)
Rights holder
© IEEEPublisher statement
Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Acceptance date
2019-09-10Publication date
2019-12-09Copyright date
2019ISBN
9781728145969ISSN
1948-5727Publisher version
Language
- en
Location
Glasgow, ScotlandEvent dates
6th October 2019 - 9th October 2019Depositor
Prof Victor Krylov Deposit date: 5 November 2019Usage metrics
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