Predictions of Pulse-Echo Ultrasonic Signals from Cracks Observed Through an Interface with a Step Discontinuity: Comparison with Experiments
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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.
In ultrasonic nondestructive evaluation, one of the factors that can greatly affect the inspectibility of a part is the condition of its surface. In nuclear reactor components, factors such as weld overlay, claddings, grinding and diametrical shrink can generate interfaces with wavy, corrugated or abruptly stepped topographies. These large scale surface roughnesses could, in turn, cause excessive beam distortion and produce unreliable results. Therefore, there has been a need to quantify the adverse effects of surface conditions during ultrasonic inspections.