Abstract
This paper presents a method to estimate the magnetic properties and width of a damaged area which is the result of the carried out punching process. Both a finite-element method (FEM) numerical model and a method for estimating the damaged area width are proposed based on data obtained from the noninvasive measurements as well as on an experimental study of the crystallographic structure. In addition, the authors propose an algorithm, using the FEM numerical model, to identify the equivalent magnetic properties of the material in the damaged area. The results obtained from the FEM model were compared with those obtained by the analytical formula proposed earlier.
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