Integrated ultrasonic imaging for the inspection of near-surface defects in safety-critical components

Joshua Elliott
Industrial Fellow 2017

Joshua Elliott
Rolls-Royce plc and Imperial College London

Joshua is researching the capabilities of Super Resolution (SR) ultrasonic imaging algorithms for use in the Non-Destructive Evaluation (NDE) inspections of defects within safety-critical submarine nuclear plant components. Through doing this, he aims to optimise the algorithms for several industrial applications. Current conventional ultrasonic NDE methods are often conservative in their approach, inevitably leading to unnecessary expenditure following routine component inspections.

SR ultrasonic imaging has the potential to characterise successfully smaller defects than ever before, which would add extra confidence to inspections results, leading to both safety improvements and possible cost savings. Joshua’s research will also focus on investigating low frequency SR imaging to compensate for image degradation caused by undesirable properties that exist in some components, which often means hazardous radiography must be resorted to.  Low frequency SR could possibly increase the applicability of cheap ultrasonic NDE in lieu of radiography.

"SR ultrasonic imaging has the potential to successfully characterise smaller defects than ever before"

Joshua graduated from the University of Warwick in 2015 with a MPhys degree, after which he began an Engineering Doctorate in the Non-Destructive Testing Group at Imperial College in collaboration with Rolls-Royce. After working at the university in London for the first year of his project, Joshua has now moved to Derby to work with the company on-site.


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