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Modelling the emergence of the coherent reflected field for spherical cavities in a solid matrix

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conference contribution
posted on 21.04.2015, 14:04 by Valerie Pinfield, Richard E. Challis
In this paper we study the acoustic field backscattered from a plane slab of spherical scatterers. The work is motivated by the need to model the reflected field received from porous regions of composite materials when using ultrasonic NDE techniques. Here, we simulate the field received from the spherical scatterers, using a semi-analytical model for the response of single realizations of scatterer configurations, together with the coherent field for the equivalent homogeneous medium. The degree of incoherence of the simulated field response from the scatterers is calculated and its dependence on scatterer radius, concentration and frequency are determined.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Acoustics 2012

Citation

PINFIELD, V.J. and CHALLIS, R.E., 2012. Modelling the emergence of the coherent reflected field for spherical cavities in a solid matrix. Acoustics 2012, Nantes, France, 23-27 April 2012.

Publisher

Société Française d'Acoustique

Version

NA (Not Applicable or Unknown)

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

2012

Notes

Invited oral presentation. Proceedings for delegates, unpublished.

Language

en

Location

Nantes, France

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