A multiscale approach to the analysis of magnetic grid shields and its validation

Bottauscio, O.; Chiampi, Mario; Manzin, A.; Roccato, Paolo Emilio; Zucca, M.

doi:10.1016/j.jcp.2007.09.010

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…In conclusion, the proposed approach is found to be suitable for the analysis of heterogeneous shields, both in terms of result accuracy [7], and computational efficiency. …”

Section: Article In Pressmentioning

confidence: 93%

“…[7], the attention is addressed to investigate the role of the ''elementary cell'' geometrical properties (hole dimension) on the effective electromagnetic properties and on the shielding efficiency of ferromagnetic grid shields. The analysis is developed by considering open and closed shield arrangements, with different materials (Fe-Si and Fe-C alloys, mumetal).…”

Section: Introductionmentioning

confidence: 99%

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Extension of thin-shell formulation to ferromagnetic heterogeneous shield modeling

Bottauscio

Piat

Chiampi

et al. 2008

Journal of Magnetism and Magnetic Materials

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“…In conclusion, the proposed approach is found to be suitable for the analysis of heterogeneous shields, both in terms of result accuracy [7], and computational efficiency. …”

Section: Article In Pressmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Extension of thin-shell formulation to ferromagnetic heterogeneous shield modeling

Bottauscio

Piat

Chiampi

et al. 2008

Journal of Magnetism and Magnetic Materials

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“…The use of these techniques is not limited to microstructured magnetic materials, but applications can also be found in stratified structures (e.g. strip‐wound amorphous cores ), multiconductor windings , and grid shields .…”

Section: Introductionmentioning

confidence: 99%

“…Here functions g ij are solutions of the cell problems with periodic boundary conditions: (15) where:…”

mentioning

confidence: 99%

Multiscale modeling of heterogeneous magnetic materials

Bottauscio

Chiampi

Manzin

2013

Int J Numerical Modelling

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This paper analyzes and discusses some computational methods for the simulation of the electric and magnetic behavior versus frequency of heterogeneous soft magnetic materials (such as soft magnetic composites, soft ferrites, and polymer composites). All these media are characterized by a granular structure, with magnetic grains separated by high resistivity layers, so that the study involves phenomena occurring at both macroscopic (sample size) and microscopic scale (grain size). The main purpose of the analysis is the prediction of the effective magnetic and electric properties, and of the relative energy losses starting from the known properties of the constituents, as well as the extrapolation of the constituent parameters from the measured global properties of the heterogeneous medium (inverse problem). The adopted computational methodologies include both analytical mixing rules and numerical approaches on the basis of homogenization and multiscale methods. The paper reports some examples illustrating advantages and drawbacks of these techniques, giving also an outline of nonlinear media homogenization.

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Comparison of multiscale models for eddy current computation in granular magnetic materials

Bottauscio

Manzin

2013

Journal of Computational Physics

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A multiscale approach to the analysis of magnetic grid shields and its validation

Cited by 4 publications

References 7 publications

Extension of thin-shell formulation to ferromagnetic heterogeneous shield modeling

Extension of thin-shell formulation to ferromagnetic heterogeneous shield modeling

Multiscale modeling of heterogeneous magnetic materials

Comparison of multiscale models for eddy current computation in granular magnetic materials

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