Field and Beta-Site Testing of the Dripless Bubbler Ultrasonic Scanner
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
The Dripless Bubbler technique [1–4] has demonstrated in both laboratory and field trials the ability to identify adhesive disbonds and quantify the metal loss due to corrosion in aircraft fuselage structures. In the latest round of field trials, this technique was successfully applied to aid in characterizing exfoliation corrosion around fasteners in thick wing skins (0.190 – 0.500 inches). In two Beta-site tests, the technique was used to identify delaminations, verify ply drop-offs and evaluate repairs in aircraft composite structures such as rudders, spoilers and flaps.