Correlation between the Force and Magnetic Field of the U71Mn Notched Sample

Sheng Bao; Yi Bin Gu; Sheng Nan Hu; Mei Li Fu; Da Zhang

doi:10.4028/www.scientific.net/AMM.723.785

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 723Correlation between the Force and Magnetic Field...

Correlation between the Force and Magnetic Field of the U71Mn Notched Sample

Abstract:

In this work experiments were carried out to study the evolution of the piezomagnetic field surrounding steel samples with the tensile stress. The piezomagnetic field was recorded by a highly sensitive fluxgate magnetometer of 428D. The piezomagnetic field (B field) and its gradient of the U71Mn steel are compared with the mechanical response. Results show that the piezomagnetic response seems to be a more sensitive indicator of damage than the mechanical one. Moreover, there exhibits correlations between the piezomagnetic response and mechanical response. This research has demonstrated that the piezomagnetic effect can be utilized as a nondestructive method to monitor damage in the rail.

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Periodical:

Applied Mechanics and Materials (Volume 723)

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785-788

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.723.785

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Online since:

January 2015

Authors:

Sheng Bao, Yi Bin Gu, Sheng Nan Hu, Mei Li Fu, Da Zhang

Keywords:

Magnetic Field Gradient, Piezomagnetic Effect, Tensile Test

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