Mesomechanical Response of a Soft Magnetic Elastomer to AC Magnetization

Biller, A. M.; Столбов, О. В.; Raǐkher, Yu. L.

doi:10.1007/978-3-319-90884-7_5

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…in the range of one particle diameter or lower, in order to capture effects of an inhomogeneous, non-linear magnetization. Concurrently, the stiffness of the surrounding elastomer material must prevent the particles from colliding since such effects, see the works of Puljiz et al [40] as well as Biller et al [15,41] for details, are outside the scope of this contribution and impede the numerical simulations. Finally, the size of the samples has to be chosen in a way, that the external magnetic field can be assumed as homogeneous and well-defined: this is of particular importance for the application of magnetic boundary conditions within the numerical simulations [42].…”

Section: Deformation Behavior Of Simplified Mae Samplesmentioning

confidence: 99%

Field-induced interactions in magneto-active elastomers - A comparison of experiments and simulations

Metsch

Schmidt

Sindersberger

et al. 2020

Smart Mater. Struct.

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In this contribution, field-induced interactions of magnetizable particles embedded into a soft elastomer matrix are analyzed with regard to the resulting mechanical deformations. By comparing experiments for two-, three- and four-particle systems with the results of finite element simulations, a fully coupled continuum model for magneto-active elastomers is validated with the help of real data for the first time. The model under consideration permits the investigation of magneto-active elastomers with arbitrary particle distances, shapes and volume fractions as well as magnetic and mechanical properties of the individual constituents. It thus represents a basis for future studies on more complex, realistic systems. Our results show a very good agreement between experiments and numerical simulations—the deformation behavior of all systems is captured by the model qualitatively as well as quantitatively. Within a sensitivity analysis, the influence of the initial particle positions on the systems’ response is examined. Furthermore, a comparison of the full three-dimensional model with the often used, simplified two-dimensional approach shows the typical overestimation of resulting interactions in magneto-active elastomers.

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Section: Deformation Behavior Of Simplified Mae Samplesmentioning

confidence: 99%

Field-induced interactions in magneto-active elastomers - A comparison of experiments and simulations

Metsch

Schmidt

Sindersberger

et al. 2020

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Three parameters define its configuration, namely the initial interparticle distance L 0 , the particle radius a, and the initial angle θ 0 between the field and the intercenter vector of the particles. A detailed description of the evolution of such a system under a changing field was given by Biller et al in a series of works [15][16][17]; here, we just summarize the results.…”

Section: Particle Magnetizationmentioning

confidence: 99%

Effect of mesoscopic magnetomechanical hysteresis on magnetization curves and first-order reversal curve diagrams of magnetoactive elastomers

Vaganov

Raǐkher

2020

J. Phys. D: Appl. Phys.

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Magnetoactive elastomers may display magnetic hysteresis, even if they are filled only with magnetically soft particles. In this work we discuss application of the first-order reversal curve (FORC) analysis to identify and study hysteresis of that kind. To obtain theoretical magnetization curves and FORC diagrams for the composites in question, a simple model comprising two magnetically soft particles embedded in an elastic environment is proposed. Elucidation of the features present in FORC diagrams is conducted using computer simulation. Despite the simplicity of the model, it allows one to explain the origin of diagonal ridge patterns, which turn up in the FORC diagrams of elastomer composites with magnetically soft filler, and to quantify the experimental results. As the ridge pattern of the diagrams is inherently exclusive to such types of materials, it could be useful for their diagnostics.

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Mesomechanical Response of a Soft Magnetic Elastomer to AC Magnetization

Cited by 2 publications

References 12 publications

Field-induced interactions in magneto-active elastomers - A comparison of experiments and simulations

Field-induced interactions in magneto-active elastomers - A comparison of experiments and simulations

Effect of mesoscopic magnetomechanical hysteresis on magnetization curves and first-order reversal curve diagrams of magnetoactive elastomers

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