A model of bolt hole inspection via eddy current
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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.
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Abstract
In this paper we report on the development of an eddy-current measurement model, which is a generalization of the one reported earlier [1-2]. Our objective is to establish a computer model that is capable of simulating eddy current NDE in generic inspection geometries. To achieve this goal, we started with an earlier version of the model applicable to a flat-plate geometry and a tightly closed crack [3]. The model has been generalized so that the current version can handle more general specimen geometries, including curved surfaces and corners. Other features of the original model were kept unchanged; for instance, it uses the boundary integral equation method, can handle tight cracks, and works for an air-core coil driven at arbitrary frequencies.