Original title: Numerical modeling of surface elastic wave scattering in polycrystalline materials
Authors: Grabec, Tomáš ; Ryzy, M. ; Verres, I. A.
Document type: Papers
Conference/Event: IEEE International Ultrasonics Symposium (IUS), Washington (US), 20170906
Year: 2017
Language: eng
Abstract: Grain-boundary scattering of acoustic waves in polycrystalline materials is studied with analytical and numerical methods in the presented paper. In particular, the attenuation of Surface Acoustic Waves (SAWs) propagating through a polycrystalline microstructure is investigated. A three dimensional timedomain finite-element method (FEM) is utilized for the numerical simulation, whereby the granular microstructure is modeled by Voronoi tessellation. The resulting frequency-dependent attenuation coefficients are compared to an explicit analytical model.
Keywords: elastic wave; grain boundary scattering; numerical modeling; polycrystalline material
Project no.: GB14-36566G (CEP), EF16_013/0001794
Funding provider: GA ČR, GA MŠk
Host item entry: IEEE International Ultrasonics Symposium, ISBN 978-1-5386-3383-0, ISSN 1948-5719

Institution: Nuclear Physics Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279710

Permalink: http://www.nusl.cz/ntk/nusl-373422


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Research > Institutes ASCR > Nuclear Physics Institute
Conference materials > Papers