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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.
Transfer matrix method
|Issue Date: ||2015|
|Publisher: ||© 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 frequency-dependent attenuation of the elastic waves. The effective-medium model is based on a single scattering approach i.e. 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 in order 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 article was published as Open Access, licenced under the Creative Commons Attribution licence (CC BY 3.0). For more information, see http://creativecommons.org/licenses/by/3.0/|
|Sponsor: ||This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) [Grant No. EP/K037315/1].|
|Publisher Link: ||http://dx.doi.org/10.1109/TUFFC.2014.006837|
|Appears in Collections:||Published Articles (Chemical Engineering)|
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