2007 ULTRASONIC BENCHMARK STUDIES OF INTERFACE CURVATURE—A SUMMARY.

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. [ABSTRACT FROM AUTHOR]