Two-Dimensional Arrays for the Quantitative Characterisation of Complex Defects

Lead Research Organisation: University of Strathclyde
Department Name: Electronic and Electrical Engineering

Abstract

Recent years have seen a rapid increase in the interest in arrays for NDE. Their advantages include increased flexibility, as one array probe can undertake many inspections, increased speed of imaging and increased coverage from a given location. However, current NDE systems utilise mainly 1-Dimensional (1D) arrays and so are limited to obtaining a 2-Dimensional (2D) image. 2D arrays offer the potential to image in all three dimensions. This has clear benefits as real defects and engineering structures are three-dimensional / for example defects such as cracking and inclusions in welds are of arbitrary shape and can occur in arbitrary orientations. 2D arrays are able to 'view' a given defect form a range of angles leading to the possibility of obtaining characterisation detail far beyond what is currently achievable. However there are a number of obstacles currently stifling the application of 2D arrays to NDE. Firstly, how should 2D arrays be designed with a low enough number of elements to be practically viable? Secondly, how should the vast amount of data potentially obtainable be minimised and processed? Thirdly, given these practical limitations, what imaging and characterisation performance can be achieved? This project will address these issues by developing a modelling suite to optimise array design, investigating a range of data management and signal processing techniques to make the most efficient use of the data, incorporating recently developed piezoelectric and passive materials into the array design and optimising 2D array manufacture for NDE. This proposal is being submitted within the UK Research Centre in NDE to the targeted research programme, the funding for which is earmarked by EPSRC for industrially driven research.

Publications

10 25 50
 
Description - Key components for the manufacture of 2D arrays have been established.
- 2D hexagonal array configurations have been developed and design guidlines produced.
- A sparse array configuration based on the mathematical principles of conformal mapping has been devloped.
- CUDA based software running on GP-GPU architecture offers significant potential for real-time processing and visualisation of 2D array data sets.
Exploitation Route Excellent opportunities to engage in the design of bespoke 2D ultrasonic array transducer configurations for NDE applications. 2D array geometries and manufacturing techniques have been developed and support software packages are available.
Sectors Aerospace, Defence and Marine,Energy,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology

 
Description EPSRC
Amount £200,000 (GBP)
Funding ID EP/H001387/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 10/2010 
End 03/2013
 
Description EPSRC
Amount £263,000 (GBP)
Funding ID EP/I021027/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 08/2011 
End 07/2014
 
Description KTP Programme Office
Amount £121,000 (GBP)
Funding ID KTP007806 
Organisation Knowledge Transfer Partnerships 
Sector Private
Country United Kingdom
Start 07/2010 
End 06/2012
 
Description Technology Strategy Board
Amount £160,000 (GBP)
Funding ID 1010_CRD_TI_CRD_45270 
Organisation Innovate UK 
Sector Public
Country United Kingdom
Start 08/2011 
End 07/2014
 
Description University of Strathclyde's Advanced Nuclear Research Centre
Amount £360,000 (GBP)
Organisation Babcock International Group 
Sector Private
Country United Kingdom
Start 02/2018 
End 01/2020
 
Description Joint research with University of Bristol 
Organisation University of Bristol
Country United Kingdom 
Sector Academic/University 
PI Contribution University of Strathclyde researchers worked on this project with researchers from University of Bristol
Start Year 2008
 
Description Project partnership with Airbus UK 
Organisation Airbus Group
Country France 
Sector Private 
PI Contribution Airbus UK worked with the research team and assisted/contributed to the project outcomes
Collaborator Contribution Industrial steer at project meetings.
Impact A range of signal processing algorithms for ultrasonic inspection of difficult materials.
Start Year 2008
 
Description Project partnership with National Nuclear Laboratory 
Organisation National Nuclear Laboratory
Country United Kingdom 
Sector Public 
PI Contribution National Nuclear Laboratory worked with the research team and assisted/contributed to the project outcomes. Engaged in several projects both research and KE on transduction, inspection and automation.
Collaborator Contribution Industrial steer at project meetings
Impact A range of signal processing algorithms for ultrasonic inspection of difficult materials. Bespoke ultrasonic and electromagnetic inspection approaches.
Start Year 2008
 
Description Project partnership with Rolls-Royce PLC 
Organisation Rolls Royce Group Plc
Country United Kingdom 
Sector Private 
PI Contribution Rolls-Royce PLC worked with the research team and assisted/contributed to the project outcomes
Start Year 2008
 
Description Project partnership with Shell International Trading and Shipping Company Limited 
Organisation Shell Global Solutions International BV
Department Shell Trading & Shipping Company
Country United Kingdom 
Sector Private 
PI Contribution Shell International Trading and Shipping Company Limited worked with the research team and assisted/contributed to the project outcomes
Collaborator Contribution Industrial steer in project meetings
Impact A range of signal processing algorithms for ultrasonic inspection of difficult materials.
Start Year 2008