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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
|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;
|Publisher Link: ||http://dx.doi.org/10.1109/TUFFC.2014.006837|
|Appears in Collections:||Published Articles (Chemical Engineering)|
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