A Simplified Sablik’s Approach to Model the Effect of Compaction Pressure on the Shape of Hysteresis Loops in Soft Magnetic Composite Cores

Jakubas, Adam; Chwastek, Krzysztof

doi:10.3390/ma13010170

Cited by 11 publications

(8 citation statements)

References 54 publications

(90 reference statements)

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“…Several alterations of the original static J-A model have been developed such as the dynamic frequency-dependent J-A model [13] and a mechanical stress-dependent model [14]. The simplicity of the J-A model enabled it to be easily implemented into finite element method (FEM) simulation algorithms [15].…”

Section: Msmentioning

confidence: 99%

Estimation of Jiles-Atherton Parameters of Toroid Cores Using MATLAB/Simulink

2023

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This paper addresses the development and testing of a new genetic-like algorithm for the Jiles-Atherton ferromagnetic hysteresis model parameter fitting. The MATLAB/Simulink environment was used for the simulation and postprocessing of data. Firstly, the model's first-order ordinary differential equation is introduced with a brief description of its parameters. A correction parameter was introduced into the equation to eliminate the non-physical behavior of the model. Then the fitting algorithm and fit function are described. An experimental setup is built to measure the hysteretic loops of a ferromagnetic toroid core consisting of an iron powder material. The major and several minor hysteresis loops were measured and used as inputs into the model fitting algorithm. The measurement is then compared with the simulated results.

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Section: Msmentioning

confidence: 99%

Estimation of Jiles-Atherton Parameters of Toroid Cores Using MATLAB/Simulink

2023

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“…The model has been used and modified by many authors over the years [5][6][7][8][9][10]. Our approach is to use the theory that was used in [4].…”

Section: The Modelmentioning

confidence: 99%

Prediction of Magnetic Properties of a Plastically Deformed Steel and One Way to Measure its Plastic Deformation

Sablik¹

2020

Advances in Materials Science

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AbstractIn this paper, we use a phenomenological model based on the Jiles-Atherton-Sablik model of stress affecting the magnetic hysteresis of magnetic materials as modified when stress goes past the yield stress We use this to show that (1) the model produces sharp shearing of hysteresis curves, as seen experimentally and that (2) it also produces a step in the hysteresis loss at small residual plastic strain. We also find that the step in the hysteresis loss can be fitted to a power law, and find that the power law can be fitted by the power m=0.270, different from the mechanical Ludwik Law exponent, and reasonably close to the experimental 0.333 and 0.202. We will also suggest a method of measuring how plastically deformed the material is by suggesting how the dislocation density can be measured.

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“…Therefore, to better understand the behaviour of this increasingly popular class of materials for their prospective improvement, the mentioned factors, as well as the magnetic interactions between adjacent particles and the movability of domain walls, are of great significance to be studied in detail and considered in various models when applied to SMCs. For example, the Jiles-Atherton model in [24][25][26], the Steinmetz law in [2,22,27], the first-order reversal curves analysis in [6], the models for magnetization curves in [28][29][30], for energy losses in [2,3,5,7,25,[31][32][33][34][35], for different kinds of magnetic permeability in [2,9,14,15,[36][37][38][39][40][41][42][43], for inner demagnetizing fields in [2,4,38,[44][45][46][47][48] or magnetostriction in [49], were adapted to fit for SMCs. Since the application potential of SMCs covers a wide range of frequencies and magnetic inductions, researches are carried out in different ranges of these parameters.…”

Section: Introductionmentioning

confidence: 99%

Wide induction range analysis of DC magnetic properties and magnetization processes of Fe-based soft magnetic composites

Birčáková

Kollář

Füzer

et al. 2023

J. Phys. D: Appl. Phys.

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The paper presents systematic analyses of a wide maximum induction range (0.001 T - 1.4 T) DC magnetic properties of iron-based soft magnetic composite materials by applying different methods to understand the specific features of magnetization reversal of this increasingly popular class of soft magnetic materials, including a hitherto less explored area of the Rayleigh region of very low magnetic fields, which has growing application potential in new, low-energy consuming electronic devices or ultra-low magnetic field shielding. The total permeability, coercive field and remanent magnetic induction were analysed in connection with the reciprocity factor and inner demagnetization factor and their relations to interparticle magnetic interaction, domain wall movability and predominance of individual magnetization processes. Their dependence on the magnetic induction and the properties of each sample were revealed and confirmed also by energy loss separation. The Rayleigh region analytical expressions for the coercive field, remanent magnetic induction, the ratio of irreversible to reversible magnetization changes and their percentages within the magnetizing cycle were used for soft magnetic composites for the first time.

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A Simplified Sablik’s Approach to Model the Effect of Compaction Pressure on the Shape of Hysteresis Loops in Soft Magnetic Composite Cores

Cited by 11 publications

References 54 publications

Estimation of Jiles-Atherton Parameters of Toroid Cores Using MATLAB/Simulink

Estimation of Jiles-Atherton Parameters of Toroid Cores Using MATLAB/Simulink

Prediction of Magnetic Properties of a Plastically Deformed Steel and One Way to Measure its Plastic Deformation

Wide induction range analysis of DC magnetic properties and magnetization processes of Fe-based soft magnetic composites

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