Numerical and analytical investigation of the influence of porosity on the frequency response of GLARE composite

Veres, Istvan A.; Smith, Robert A.; Pinfield, Valerie

ManuPor_VerRasPin.pdf (1005.41 kB)

Numerical and analytical investigation of the influence of porosity on the frequency response of GLARE composite

conference contribution

posted on 2015-04-21, 13:40 authored by Istvan A. Veres, Robert A. Smith, Valerie PinfieldValerie Pinfield

In this study, the validity of the effective-medium model approach to model the ultrasonic response of porosity is investigated with the help of time-domain Finite Element Method simulations. The effective-medium model is based on a single scattering approach i.e. by neglecting the rescattering of the waves and assuming a complex wave number to account for the frequency-dependent attenuation of the elastic waves. The numerical model, on the other hand, allows the study of the scattering of the elastic waves on randomly distributed spherical cavities and also accounts for the multiple scattering effects.

Funding

This work was supported by the Engineering and Physical Sciences Research Council (EPSRC) ( Grant No. EP/K037315/1).

History

School

Aeronautical, Automotive, Chemical and Materials Engineering

Department

Chemical Engineering

Published in

IEEE International Ultrasonics Symposium, IUS

Pages

240 - 243

Citation

VERES, I.A., SMITH, R.A. and PINFIELD, V.A., 2014. Numerical and analytical investigation of the influence of porosity on the frequency response of GLARE composite. IEEE International Ultrasonics Symposium, IUS, pp. 240-243.

Publisher

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014

Notes

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