Experimental Study of Magnetic Field Variation Induced in Ferromagnetic Materials

Yang Yong; Dong Sun; Jie Ji

doi:10.4028/www.scientific.net/AMM.312.402

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 312Experimental Study of Magnetic Field Variation...

Experimental Study of Magnetic Field Variation Induced in Ferromagnetic Materials

Abstract:

The fatigue tests on 15CrMo steel specimen were carried out and the metal magnetic memory (MMM) signals were detected. The experiment shows that the magnetic signals of specimen contain the information of stress distribution in the material inside. Furthermore, the experimental results show that the magnetic signals increase initial while then decrease slightly with the stress increase from 0kN to 200kN. Though analysis the MMM signals induced by different tensile stress within the plastic region of the specimen, a simple model was derived. The experimental results are consistent with the calculated results based on the Jiles-Atherton model.

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Periodical:

Applied Mechanics and Materials (Volume 312)

Pages:

402-405

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.312.402

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Online since:

February 2013

Authors:

Yang Yong, Dong Sun, Jie Ji

Keywords:

Ferromagnetic Materials, Jiles-Atherton (J-A) Model, Magnetic Field Variation, Stress Concentration Zone

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