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Abstract
Use of full-matrix capture (FMC), combined with the total focusing method (TFM), has been shown to provide improvements to flaw sensitivity within components of irregular geometry. Ultrasonic immersion inspection of aerospace discs requires strict specifications to ensure full coverage – one of which is that all surfaces should be machined flat. The ability to detect defects through curved surfaces, with an equivalent sensitivity to that obtained through flat surfaces could bring many advantages. In this work, the relationship between surface curvature and sensitivity to standard defects was quantified for various front wall radii. Phased array FMC immersion inspection of curved components was simulated using finite element modelling, then visualized using surface-compensated focusing techniques. This includes the use of BRAIN software developed at the University of Bristol for production of TFM images. Modelling results were compared to experimental data from a series of test blocks with a range of curvatures, containing standard defects. The sensitivity to defects is evaluated by comparing the performance to conventional methods. Results are used to highlight the benefits and
limitations of these methods relating to the application area of aerospace engine disc forgings.
limitations of these methods relating to the application area of aerospace engine disc forgings.
Original language | English |
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Number of pages | 7 |
Publication status | Published - 16 Jul 2016 |
Event | 43rd Review in Quantitative Nondestructive Evaluation - Georgia Tech Hotel and Conference Center, Atlanta, United States Duration: 17 Jul 2016 → 22 Jul 2016 https://www.qndeprograms.org/ |
Conference
Conference | 43rd Review in Quantitative Nondestructive Evaluation |
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Abbreviated title | QNDE 2016 |
Country/Territory | United States |
City | Atlanta |
Period | 17/07/16 → 22/07/16 |
Internet address |
Keywords
- ultrasonic immersion inspection
- phased arrays
- curvilinear disc forgings
- inspection performance
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Dive into the research topics of 'Quantifying performance of ultrasonic immersion inspection using phased arrays for curvilinear disc forgings'. Together they form a unique fingerprint.Projects
- 1 Finished
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New Imaging Systems for Advanced Non-Destructive Evaluation
Pierce, G., Gachagan, A., Hayward, G., O'Leary, R., Thayer, P. & Windmill, J.
EPSRC (Engineering and Physical Sciences Research Council)
1/08/09 → 31/08/13
Project: Research