The effective properties of macroscopically nonuniform ferromagnetic composites: Theory and numerical experiment

Snarskiı̆, A. A.; Shamonin, Mikhail; Zhenirovsky, M.

doi:10.1134/1.1545385

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…In the original two works [55][56], the power-type nonlinearities were considered, see also [58]. The effective properties of composites with fixed ferromagnetic inclusions were considered in [59][60][61][62]. The method proposed in [55,56] is briefly explained in Appendix 2.…”

Section: Effective Magnetic Permeability Taking Into Account Nonlinea...mentioning

confidence: 99%

Theoretical method for calculation of effective properties of composite materials with reconfigurable microstructure: Electric and magnetic phenomena

Snarskiı̆

Zorinets

Shamonin

et al. 2019

Physica A: Statistical Mechanics and its Applications

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We propose a theoretical approach for calculating effective electric and magnetic properties of composites with field-dependent restructuring of the filler. The theory combines the Bruggeman-Landauer approximation extended to a field-dependent (variable) percolation threshold with the approximate treatment of nonlinearity of material properties. Theoretical results are compared with experiments on magnetorheological elastomers, which in the context of investigated phenomena are often called magnetoactive elastomers (MAEs). In MAEs with soft polymer matrices, the mutual arrangement of inclusions changes in an applied magnetic field. This reorganization of the microstructure leads to unconventionally large changes of electrical and magnetic properties. Obtained theoretical results describe observed phenomena in MAEs well. Qualitative agreement between theory and experiment is demonstrated for the magnetodielectric effect. In the case of magnetic permeability, quantitative agreement is achieved. The theoretical approach presented can be useful for development of field-controlled smart materials and design of smart structures on their basis, because the field dependence of physical properties can be predicted.

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Section: Effective Magnetic Permeability Taking Into Account Nonlinea...mentioning

confidence: 99%

Theoretical method for calculation of effective properties of composite materials with reconfigurable microstructure: Electric and magnetic phenomena

Snarskiı̆

Zorinets

Shamonin

et al. 2019

Physica A: Statistical Mechanics and its Applications

View full text Add to dashboard Cite

show abstract

“…[1]). The experimental data available for comparison in the literature are scarce and usually do not provide the magnetization curves of pure phases thus making any quantitative comparison very difficult.…”

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confidence: 93%

“…[16]. This program has proven to be efficient for the solution of the similar magnetostatics problems in non-linear ferromagnetics having demonstrated an excellent compliance with the experiment and analytical results [1,17]. Calculations were made on a standard PC and calculation time for a given ferromagnetic phase concentration p and a given external field kHl was from 5 to 45 min depending on p and kHl:…”

mentioning

confidence: 99%