Effect of applied stresses on magnetostriction of low carbon steel

Yamasaki, Tomohiro; Yamamoto, Shinji; Hirao, Masahiko

doi:10.1016/s0963-8695(96)00028-x

Cited by 63 publications

(28 citation statements)

References 2 publications

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“…The argument of tanh contains −σ, which implies that it is flipped with respect to the stress (compression being negative and tension positive on the stress axis). This is evident from Figure (12a) of [30], which shows the variation of the maximum magnetostriction with respect to stress.…”

Section: A Magnetostriction Modelmentioning

confidence: 77%

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

et al. 2016

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A coupled magneto-mechanical model for hysteresis in an electrical steel sheet is presented. The foundation of the model developed is the classical Sablik-Jiles-Atherton (SJA) model. A comprehensive model for the stress dependent magnetostriction is also proposed and implemented in the SJA model. Improvements in the SJA model as well, are proposed and validated with simultaneous measurements of magnetostriction, magnetic field and flux density. The measurements were performed on a single electrical steel sheet under various levels of stress (-35 MPa to 100 MPa). The proposed model was found to adequately model the permeability change and the local bowing of the BH-loop due to stress.

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Section: A Magnetostriction Modelmentioning

confidence: 77%

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

et al. 2016

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“…For materials with positive magnetostriction, the magnetic moments tend to align in parallel to the direction of tensile stress, and perpendicular to compressive stress. In materials with negative magnetostriction, opposite phenomena occurthe magnetic moments tend to align perpendicular to the direction of tensile stress, and in parallel to compressive stress [12,13]. The impact of uniaxial stress on the domain structure can be compared to the effect of a magnetic field with strength H σ which is equivalent to the stress…”

Section: Resultsmentioning

confidence: 99%

“…where σ is stress, λ-magnetostriction, μ 0 -magnetic permeability of free space, M-magnetisation, φ-the angle between the stress axis and the direction of magnetic field H σ , and ν-Poisson's ratio [12][13][14][15][16]. Dependence (1) results from the fact that, in a certain range of the magnetic field strength H and stress σ , Villary's effect is the inverse of Joule's effect and in this case these effects are interrelated by a thermodynamic dependence.…”

Section: Resultsmentioning

confidence: 99%

Analysis of relationships between residual magnetic field and residual stress

2012

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The impact of stress on changes in magnetisation is one of the most complex issues of magnetism. Magnetic methods make use of the impact of stress on permeability, hysteresis and magnetic Barkhausen noise, which are examined with fields with a high strength and a small frequency. The paper presents an analysis of the impact of residual stress resulting from inhomogeneous plastic deformations in the notch area of the examined samples on the changes in the strength of the residual magnetic field (RMF). The RMF on the surface of the component is the superposition of the simultaneous effect of the shape, the anisotropic magnetic properties of the material, as well as of the values of the components of a weak external magnetic field (most commonly-the magnetic field of the Earth). Distributions of the RMF components were measured on the surface of samples with a various degree of plastic strain. The finite element method was used to model residual stress in the samples. The impact of residual stress on changes in the residual magnetic field was shown. A qualitative correlation was found between places with residual stress and areas with increased values of the gradients of the RMF components. Further research is now in progress in order to develop the quantitative relationships.

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“…It is well known that a transformation from an austenite to a martensite is induced by a plastic deformation [5]. Most previous reports refer to the response of these evaluations in terms of the effects of the martensite contents in 304 SS with a progressive cold rolling [6,7]. However, it is a fact that many of these structures experience a unidirectional tensile loading, which incurs a lot of deformation induced by a martensite generation and growth.…”

Section: Introductionmentioning

confidence: 99%