Quantitative Measurement of Crack Parameters Using Microwave Eddy-Current Techniques

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1979
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Bahr, A
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Review of Progress in Quantitative Nondestructive Evaluation
Center for Nondestructive Evaluation

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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The objectives of this work were to develop an electromagnetic scattering model that can be used to predict the microwave scattering from a crack in a metallic surface, and to evaluate the potential of using microwave scattering measurements to determine the dimensions of the crack. The initial approach to this problem has been to model the surface crack as a section of rectangular waveguide shorted at one end. Theoretical and experimental results are presented for this case, and the potential for obtaining a quantitative evaluation of the crack dimensions is discussed.

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