Enhanced Ultrasonic 3D Characterisation Of Composites Using Full Matrix Capture Of Array Data
Lead Research Organisation:
University of Nottingham
Department Name: Div of Electrical Systems and Optics
Abstract
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People |
ORCID iD |
| Richard Challis (Principal Investigator) |
Publications
Humeida Y
(2013)
Simulation of ultrasonic array imaging of composite materials with defects.
in IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Pinfield VJ
(2011)
Acoustic scattering by a spherical obstacle: modification to the analytical long-wavelength solution for the zero-order coefficient.
in The Journal of the Acoustical Society of America
Pinfield VJ
(2011)
A comparison of stochastic and effective medium approaches to the backscattered signal from a porous layer in a solid matrix.
in The Journal of the Acoustical Society of America
Pinfield VJ
(2012)
Simulation of incoherent and coherent backscattered wave fields from cavities in a solid matrix.
in The Journal of the Acoustical Society of America
| Description | Ultrasonic array scanning of structural aerospace composite components is mandatory both at manufacture and in service for safety assurance. It is time consuming and expensive. This project has resulted in a mathematical/computational model of wave propagation between transducer array elements, full simulation of image formation, and hence optimisation of the imaging process. In addition, we have been able to set the conditions under which simplified equivalent medium theories can be used instead of a full scattering formulation to simulate the effects of microflaws such as porosity on image formation. |
| Exploitation Route | The project is part funded by Rolls-Royce and Airbus who will use the results in conjunction with QinetiQ and the related work at the University of Bristol (Prof. Paul Wilcox). |
| Sectors | Aerospace, Defence and Marine,Transport |
| Description | They have been incorporated into on-going research into ultrasonic imaging at the University of Bristol, with whom we collaborated for this research. This was initially facilitated by one of the RAs taking up employment in the Ultrasonics and NDT Research Group there (Professors Bruce Drinkwater, Paul Wilcox and Robert Smith). Specifically, the comprehensive modelling code for ultrasonic wave propagation in aerospace composites is destined to be used in new research on the 3D characterisation of both planar and complex shaped specimens. |
| First Year Of Impact | 2014 |
| Sector | Aerospace, Defence and Marine |
| Impact Types | Economic |