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Title: Comparison of numerical and effective-medium modeling of porosity in layered media
Authors: Veres, Istvan A.
Smith, Robert A.
Pinfield, Valerie J.
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Citation: VERES, I.A., SMITH, R.A. and PINFIELD, V.J., 2015. Comparison of numerical and effective-medium modeling of porosity in layered media. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 62 (6), pp.1086-1094.
Abstract: In this study, modeling approaches for porosity in layered media are presented and compared. First, an effective-medium model is used to account for the frequencydependent attenuation of the elastic waves. The effective-medium model is based on a single-scattering approach, i.e., it neglects multiple-scattering effects. Then, the effective-medium model is compared in time-domain finite element simulations. The numerical model allows the study of the scattering of the elastic waves on randomly distributed spherical cavities and also accounts for multiple-scattering effects. The models are compared to investigate the validity of the effective-medium model approach. The calculated reflected laminate responses and transmission spectra from the two models show a good agreement.
Description: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
Sponsor: Support is acknowledged from an ongoing Fellowship in Manufacturing of the UK Engineering and Physical Sciences Research Council (EPSRC; EP/K037315/1).
Version: Published
DOI: 10.1109/TUFFC.2014.006837
URI: https://dspace.lboro.ac.uk/2134/18951
Publisher Link: http://dx.doi.org/10.1109/TUFFC.2014.006837
ISSN: 1525-8955
0885-3010
Appears in Collections:Published Articles (Chemical Engineering)

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