Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Quantifying performance of ultrasonic immersion inspection using phased arrays for curvilinear disc forgings

Brown, Roy H. and Dobson, Jeff and Pierce, S. Gareth and Dutton, Ben and Collison, Ian (2016) Quantifying performance of ultrasonic immersion inspection using phased arrays for curvilinear disc forgings. In: 43rd Review in Quantitative Nondestructive Evaluation, 2016-07-17 - 2016-07-22, Georgia Tech Hotel and Conference Center.

Text (Brown-etal-RQNE2016-quantifying-performance-ultrasonic-immersion-inspection-using-phased-arrays)
Brown_etal_RQNE2016_quantifying_performance_ultrasonic_immersion_inspection_using_phased_arrays.pdf - Accepted Author Manuscript

Download (649kB) | Preview


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.