Abstract
In the domain of sheet metal production and manufacturing the harmonic analysis of eddy current signals is an appropriate nondestructive test method for process integrated determination of mechanical and technological material properties. This indirect magneto-inductive test method is based on the relation between mechanical and magnetic properties of ferromagnetic materials. It presents the possibility to create quantitative correlations between measured harmonics which depend on the material’s magnetic properties and mechanical or technological material properties. This paper presents the measuring principle as well as the results of nondestructive determination of mechanical properties (tensile strength, yield stress) of sheet steels.
The main features of the developed test equipment for harmonic analysis are a high measuring velocity and a high measuring accuracy which is comparable to destructive test methods.
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Reference
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Feiste, K.L. / Reimche, W. / Stegemann, D. Zerstörungsfreie Bestimmung mechanisch-technologischer Feinblecheigenschaften mittels Harmonischen-Analyse (Nondestructive determination of mechanical technological sheet steel properties by means of harmonic analysis); DGZfP-Tagungsband, 22.-24.5.1995, Aachen
Feiste, K.L. / Reimche, W. / Stegemann, D. Zerstörungsfreie elektromagnetische Bestimmung mechanisch-technologischer Feinblecheigenschaften (Nondestructive magneto-inductive determination of mechanical-technological sheet steel properties); Werkstoffprüfung 1995, 5. u. 6.12. 1995, Bad Nauheim
Feiste, K.L. / Reimche, W. / Stegemann, D. NDT-determination of mechanical and technological sheet steel properties using harmonic analysis; XIV CONAEND abende RIO-95 — XIV Congresso Nacional de Ensaios Não Destrutivos 1995, p249
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Stegemann, D., Reimche, W., Feiste, K.L., Heutling, B. (1998). Determination of Mechanical Properties of Steel Sheet by Electromagnetic Techniques. In: Green, R.E. (eds) Nondestructive Characterization of Materials VIII. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4847-8_43
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DOI: https://doi.org/10.1007/978-1-4615-4847-8_43
Publisher Name: Springer, Boston, MA
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