Measurement and analytical modeling of the ΔE effect in a bulk iron-cobalt alloy - CentraleSupélec Access content directly
Journal Articles IEEE Transactions on Magnetics Year : 2010

Measurement and analytical modeling of the ΔE effect in a bulk iron-cobalt alloy

Laurent Daniel

Abstract

The Young modulus of a material is the ratio between an uniaxial applied stress and the elastic strain measured in the direction parallel to the applied stress. For magnetic materials, stress-strain relationship appears to be non-linear. This effect is called the ΔE effect, usually introduced as a dependency of the Young modulus on the stress level, but physically due to a re-organization of the magnetic domains under stress generating a magnetostriction strain. In this paper, the ΔE effect is measured for a bulk iron-cobalt alloy thanks to two different methods. An analytical magneto-mechanical modeling of the ΔE effect is finally applied and compared to the experimental results.
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hal-00555656 , version 1 (22-02-2022)

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Olivier Hubert, Laurent Daniel. Measurement and analytical modeling of the ΔE effect in a bulk iron-cobalt alloy. IEEE Transactions on Magnetics, 2010, 46 (2), pp.401-404. ⟨10.1109/tmag.2009.2033387⟩. ⟨hal-00555656⟩
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