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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 2015-04-21, 14:04 authored by Valerie PinfieldValerie 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.



  • Aeronautical, Automotive, Chemical and Materials Engineering


  • Chemical Engineering

Published in

Acoustics 2012


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.


Société Française d'Acoustique


  • 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



Invited oral presentation. Proceedings for delegates, unpublished.


  • en


Nantes, France

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