Hysteresis modeling of the grain-oriented laminations with inclusion of crystalline and textured structure in a modified Jiles-Atherton model

Baghel, A. P. S.; Kulkarni, S.V.

doi:10.1063/1.4788806

Cited by 38 publications

(18 citation statements)

References 18 publications

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“…The original JA model is particularly successful in hysteresis modelling of isotropic magnetic materials [8]. However, GO materials exhibit strong anisotropic features in magnetic properties because of their crystallographic orientation [22,24,25]. Hence, the JA model needs improvements for prediction of hysteresis loops in GO materials.…”

Section: Research Articlementioning

confidence: 99%

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Modelling of minor hysteresis loops in rolling and transverse directions of grain‐oriented laminations

Baghel¹,

Chwastek

Kulkarni³

2015

IET Electric Power Applications

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The paper presents a modelling approach for symmetrical minor hysteresis loops in the rolling (RD) and transverse (TD) directions for grain-oriented (GO) laminations. A recently proposed modified Jiles-Atherton model which considers crystallographic orientation of GO laminations is extended to predict RD and TD minor loops. A power scaling rule for updation of model parameters is applied for the purpose. Two model parameters (k and a) are updated with the maximum flux density in RD. It gives reasonably accurate prediction in this direction. On the other hand, in TD, three model parameters (k, a and c) are modified to predict minor loops accurately. The proposed model is validated using measured curves in both directions. A close agreement is observed between computed and experimental ones. The model is useful for design and analysis of core joints and corners under rotating and distorted flux patterns.

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Section: Research Articlementioning

confidence: 99%

“…This paper presents a modelling approach for minor loops of grain-oriented (GO) laminations in RD and TD. A recently proposed modified JA model in [22], which considers crystallographic features of GO laminations, is used in this work. The model gives accurate predictions of narrow-waist RD and complex shaped TD major loops.…”

Section: Introductionmentioning

confidence: 99%

Modelling of minor hysteresis loops in rolling and transverse directions of grain‐oriented laminations

Baghel¹,

Chwastek

Kulkarni³

2015

IET Electric Power Applications

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“…-In the presented approach anisotropy is neglected both for the M(H) [38,39] and λ(M)dependencies. It is possible to introduce in the first approximation a vectorized version of the JA model, similar to the one considered by Szymański and Waszak [40].…”

Section: Discussionmentioning

confidence: 99%

Estimation of the Level of Residual Stress in Wires with a Magnetic Method

Suliga¹,

Borowik²,

Chwastek³

2015

Archives of Metallurgy and Materials

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Residual stress present in wires after drawing process affects their magnetic properties. The paper presents a concept to estimate the level of residual stress on the basis of measurements of hysteresis loops. In order to describe the effect qualitatively the Jiles-Atherton-Sablik description is adapted. On the basis of variations in hysteresis loop shapes the average values of residual stress in wires for different single draft values are determined. It was found that the estimated average values by magnetic stresses are comparable with the results of numerical modeling and experimental studies.Keywords: residual stress, wire drawing, hysteresis loop, effective field Naprężenia własne istniejące w drutach po procesie ciągnienia mają wpływ na ich właściwości magnetyczne. W pracy przedstawiono koncepcję oszacowania poziomu naprężeń własnych drutów na podstawie pomiarów pętli histerezy. W celu jakościowego opisu zjawiska zaadaptowano model Jilesa-Athertona-Sablika. Na podstawie zmian kształtu pętli histerezy oszacowano średnie wartości naprężeń własnych dla drutów ciągnionych z różnymi wartościami gniotu pojedynczego. Stwierdzono, że oszacowane metodą magnetyczną średnie wartości naprężeń własnych są porównywalne z wynikami z modelowania numerycznego i badań eksperymentalnych.

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“…Each individual stage follows the general expression given by the VVPM [Eq. (4)], and we ensure continuity of σ B for −1 < m < 1. σ B is then given by (9) for the up cycle, and A phenomenological approach was used to identify each value of the exponent k, similar to recent works treating the modeling of the hysteresis of magnetic materials [28,31,65,66]. More precisely, they were obtained by fitting the measured [CoFeB(3Å)/Pd(10Å)] 15 multilayer, and application of the model to the remaining samples revealed that they remain unchanged as long as there is a negligible in-plane component of the magnetization.…”

Section: Distribution Of Interactionsmentioning

confidence: 99%

“…However, due to the random distributions of defects and surface roughness, a micromagnetic approach is impractical due to the prohibitively long simulation times required. Numerical calculations and semianalytical hysteresis models like the Preisach, Jiles-Atherton, and vector-hysteresis models have been used successfully to characterize qualitatively and quantitatively different kinds * Corresponding author: carlos.garcia@usm.cl of materials and magnetic arrays by modeling experimental hysteresis loops [27][28][29][30][31]. However, none of the models is able to properly describe the magnetization switching of a thin film material with PMA.…”

Section: Introductionmentioning

confidence: 99%

Variable variance Preisach model for multilayers with perpendicular magnetic anisotropy

et al. 2016

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We present a variable variance Preisach model that fully accounts for the different magnetization processes of a multilayer structure with perpendicular magnetic anisotropy by adjusting the evolution of the interaction variance as the magnetization changes. We successfully compare in a quantitative manner the results obtained with this model to experimental hysteresis loops of several [CoFeB/Pd] n multilayers. The effect of the number of repetitions and the thicknesses of the CoFeB and Pd layers on the magnetization reversal of the multilayer structure is studied, and it is found that many of the observed phenomena can be attributed to an increase of the magnetostatic interactions and subsequent decrease of the size of the magnetic domains. Increasing the CoFeB thickness leads to the disappearance of the perpendicular anisotropy, and such a minimum thickness of the Pd layer is necessary to achieve an out-of-plane magnetization.

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Hysteresis modeling of the grain-oriented laminations with inclusion of crystalline and textured structure in a modified Jiles-Atherton model

Abstract: Identification of the relation between the material parameters in the Preisach model and in the Jiles-Atherton hysteresis modelApplication of the Preisach and Jiles-Atherton models to the simulation of hysteresis in soft magnetic alloys

Cited by 38 publications

References 18 publications

Modelling of minor hysteresis loops in rolling and transverse directions of grain‐oriented laminations

Modelling of minor hysteresis loops in rolling and transverse directions of grain‐oriented laminations

Estimation of the Level of Residual Stress in Wires with a Magnetic Method

Variable variance Preisach model for multilayers with perpendicular magnetic anisotropy

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