EngD student, 2011 intake
Research: Inspection of Complex Components using Sparse 2D Ultrasonic Arrays
Sponsoring company: Doosan Babcock
Background: Undergraduate Honours in Applied Physics, University of Strathclyde, June 2011. An industrial placement between my 3rd and 4th year at Doosan Babcock was my introduction to NDE. I worked on developing a damping material for custom phased array wedges.
My Research involves the investigation and development of ultrasonic inspection of components typical of the nuclear industry, using 2D arrays and the Total Focusing Method (TFM). Such components are often complex to inspect as they are thick (~100mm), coarse grained and exhibit an irregular and unknown surface profile.
My work involves inspecting a component with Full Matrix Capture (FMC). The surface profile of the component is extracted from a TFM image of the surface only. The surface profile is then fed back into the TFM algorithm to adjust the delay laws and correctly image the component. This method has been demonstrated on a thick section stainless steel test block, manufactured with an example of the worst acceptable error of form in a component. The side drilled holes and back wall have been correctly imaged using this method. Further work is ongoing to gain an understanding of the variables involved in such an inspection.
Key Publication: A. McGilp, J. Dziewierz, T. Lardner, A. Gachagan, J. Mackersie, Inspection of Complex Components using 2D Arrays and TFM, BINDT Sept 2014, Manchester
Awards: British Institute of NDT William Gardner Award 2014 – Best paper published in the Proceedings of the Institute’s Annual Conference by a person in the early stages of their career.