The MIIS Eprints Archive

Acoustic scattering from a strained region

Allwright, David and Jones, Gareth and Parnell, William (2006) Acoustic scattering from a strained region. [Study Group Report]

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Abstract

A composite material consists of a rubber filled with gas-filled microspheres. In underwater applications it is compressed hydrostatically by a pressure that may be not insignificant compared with the shear modulus of the rubber, so large strains are produced around each spherical inclusion. When these spherical inclusions scatter an incident acoustic wave, the strained region around an inclusion has had its elastic properties altered by the large static strain. Thales Underwater Systems asked the Study Group to address the question of how this strained region affects the elastic scattering, bearing in mind that the dynamic shear modulus differs from its static value.

Item Type:Study Group Report
Problem Sectors:Materials
Aerospace and defence
Study Groups:European Study Group with Industry > ESGI 53 (Manchester, UK, Mar 21-24, 2005)
Company Name:Thales Underwater Systems
ID Code:67
Deposited By: Gordon White
Deposited On:19 Jun 2006
Last Modified:29 May 2015 19:46

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