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Modelling ultrasonic array signals in multilayer anisotropic materials using the angular spectrum decomposition of plane wave responses

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posted on 10.10.2013, 13:09 authored by Yousif Humeida, Valerie PinfieldValerie Pinfield, Richard E. Challis
Ultrasonic arrays have seen increasing use for the characterisation of composite materials. In this paper, ultrasonic wave propagation in multilayer anisotropic materials has been modelled using plane wave and angular spectrum decomposition techniques. Different matrix techniques, such as the stiffness matrix method and the transfer matrix method, are used to calculate the reflection and transmission coefficients of ultrasonic plane waves in the considered media. Then, an angular decomposition technique is used to derive the bounded beams from finite-width ultrasonic array elements from the plane wave responses calculated earlier. This model is considered to be an analytical exact solution for the problem; hence the diffraction of waves in such composite materials can be calculated for different incident angles for a very wide range of frequencies. This model is validated against experimental measurements using the Full-Matrix Capture (FMC) of array data in both a homogeneous isotropic material, i.e. aluminium, and an inhomogeneous multilayer anisotropic material, i.e. a carbon fibre reinforced composite. © Published under licence by IOP Publishing Ltd.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Citation

HUMEIDA, Y., PINFIELD, V.J. and CHALLIS, R.E., 2013. Modelling ultrasonic array signals in multilayer anisotropic materials using the angular spectrum decomposition of plane wave responses. Journal of Physics: Conference Series, 457, 012005

Publisher

IOP Publishing

Version

VoR (Version of Record)

Publication date

2013

Notes

This is an Open Access Article. It is published by IOP Press under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

ISSN

1742-6588

eISSN

1742-6596

Language

en

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