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Finite element analysis reveals electromagnetic interactions between probe coils and crack-type defects, suggesting improved NDE methods.
Two finite element models have been developed to analyze the electromagnetic interaction between probe coils and crack-type defects in eddy current NDE problems. One is a fully discretized model where the width of the crack is subdivided into finite elements. The other is a thin sheet crack model where the crack-type irregularities are treated as non-conducting thin sheets with negligible thickness. To verify the models benchmark problem has been solved and comparison between the calculated and experimental data has been performed.
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Badics et al. (1994) studied this question.
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