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2007 ultrasonic benchmark studies of interface curvature - a summary

: Schmerr, L.W.; Huang, R.; Raillon, R.; Chatillon, S.; Mahaut, S.; Song, S.-J.; Kim, H.-J.; Spies, M.

Postprint urn:nbn:de:0011-n-884933 (1.1 MByte PDF)
MD5 Fingerprint: 7bc0a50c5f663e03cfe434923a53857d
Copyright AIP
Created on: 9.7.2010

Thompson, D.O.:
Review of progress in quantitative nondestructive evaluation. Vol. 27B : The 34th Annual Review of Progress in Quantitative NDE. Golden, Colorado, 22 - 27 July 2007
Melville, NY: AIP, 2008 (AIP Conference Proceedings 975,B)
ISBN: 978-0-7354-0494-6
Annual Review of Progress in Quantitative Nondestructive Evaluation (NDE) <34, 2007, Golden/Colo.>
Conference Paper, Electronic Publication
Fraunhofer IZFP ()
ultrasonic benchmark; curvature study; flat-bottom hole; Point source beam model; multi-Gaussian beam model; Kirchhoff approximation; ultrasonic measurement mode

The 2007 QNDE ultrasonic benchmark session involved researchers from four different institutions around the world. The two studies they considered examined the influence that the curvature of a cylindrical fluid-solid interface has on the measured NDE immersion test response of a flat-bottom hole (FBH) reflector The first study was a model-based study of the effects of different FBH sizes and curvatures, where the FBHs were all located a specific depth in a solid. The second study compared model-based predictions with experiments for different interface curvatures and a FBH hole of a fixed size but located at different depths. Here, we will summarize the results obtained and analyze the differences between the different models and between the model-based results and the experiments.