Abstract
An iterative technique utilizing a volume integral formulation and a stationary expression for the eddy-current response is discussed and applied to defects of spherical and cylindrical geometry in a conducting half-space. The computations converge in one to four iterations and give known results for small spherical defects. The technique is computationally stable and will efficiently handle defect dimensions at least up to several skin depths. The air-metal interface is considered by means of image theory.
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Hower, G.L., Hadlock, D.E. An iterative calculation of eddy-current responses due to three-dimensional defects. J Nondestruct Eval 8, 247–255 (1989). https://doi.org/10.1007/BF00633275
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DOI: https://doi.org/10.1007/BF00633275