Results 131 to 140 of about 37,534 (153)

Magnetoresistive Effect in Magnetoactive Elastomers

Journal of Superconductivity and Novel Magnetism, 2012
A study of the influence of magnetic field on the resistivity of the magnetoactive (magnetorheological) elastomer has been conducted. The material consisted of a soft polymer matrix and magnetic fillers being powders of Fe, Ni, and the Fe–Nd–B alloy. Under the influence of the field with a value of 300 mT, the elastomer exhibited the magnetoresistive ...
G. V. Stepanov, D. A. Semerenko, A. V. Bakhtiiarov, P. A. Storozhenko   +3 more
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Single-particle mechanism of magnetostriction in magnetoactive elastomers

Physical Review E, 2016
Magnetoactive elastomers (MAEs) are composite materials comprised of micrometer-sized ferromagnetic particles in a nonmagnetic elastomer matrix. A single-particle mechanism of magnetostriction in MAEs, assuming the rotation of a soft magnetic, mechanically rigid particle with uniaxial magnetic anisotropy in magnetic fields is identified and considered ...
Viktor M, Kalita, Andrei A, Snarskii, Denis, Zorinets, Mikhail, Shamonin   +3 more
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Striction-Induced Stresses in a Magnetoactive Elastomer

Bulletin of the Russian Academy of Sciences: Physics
The possibility to determine the magnetostriction coefficient a of a magnetoactive elastomer is theoretically demonstrated by way of simple isometric experiment, when the force is measured that emerges in result of application of a field in the direction along which the dimension of the sample is fixed. It is shown that the value of a may be found from
O. V. Stolbov, Yu. L. Raikher
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Magnetoactive liquid crystal elastomer nanocomposites

J. Mater. Chem., 2009
We present liquid crystal elastomer (LCE) nanocomposites containing superparamagnetic nanoparticles that perform local heat dissipation upon irradiation with electromagnetic fields. A fast local temperature rise is observed that leads to a distinct contraction at the nematic–isotropic transition temperature of the elastomer.
Kaiser, Andreas, Winkler, Moritz, Krause, Simon, Finkelmann, Heino, Schmidt, Annette Monika   +4 more
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Finite deformation analysis of isotropic magnetoactive elastomers

Continuum Mechanics and Thermodynamics, 2020
In this study, the large deformation analysis of the magnetoactive elastomers based on continuum mechanics approach has been conducted. First, the governing differential equations for the spatial configuration are presented. Stored energy density function defined with respect to the invariants of the right or left Cauchy–Green deformation tensor and ...
Alireza Beheshti, Ramin Sedaghati, Subhash Rakheja   +2 more
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Motion of ferroparticles inside the polymeric matrix in magnetoactive elastomers

Journal of Physics: Condensed Matter, 2008
Ferroelastic composites are smart materials with unique properties including large magnetodeformational effects, strong field enhancement of the elastic modulus and magnetic shape memory. On the basis of mechanical tests, direct microscopy observations and magnetic measurements we conclude that all these effects are caused by reversible motion of the ...
G V, Stepanov, D Yu, Borin, Yu L, Raikher, P V, Melenev, N S, Perov   +4 more
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Transversely isotropic magnetoactive elastomers: theory and experiments

Archive of Applied Mechanics, 2020
The current contribution is concerned with the development of novel constitutive equations for anisotropic magnetoactive elastomers (MAEs). A hyperelastic material model for an incompressible magnetoelastic medium representing transversely isotropic MAEs has been developed to investigate their response behavior in the presence of the applied magnetic ...
Alireza Beheshti, Ramin Sedaghati, Subhash Rakheja   +2 more
openaire   +1 more source

Experimental Studies of the Resonance Characteristics of Magnetoactive Elastomers

2018 Dynamics of Systems, Mechanisms and Machines (Dynamics), 2018
the object of study is obtaining of experimental dynamic characteristics for new materials – magnetoactive elastomers under exposure of different loads from magnetic fields. Characteristics of magnetic field force effect on increase of resonance frequencies.
A. Ja. Minaev, Ju. V. Korovkin
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Magnetoactive elastomers with controllable radio-absorbing properties

Materials Today Communications, 2019
Abstract Magneto-active elastomers (MAEs) based on a silicon polymer matrix filled with magnetic carbonyl iron microparticles have been synthesized. Both isotropic samples and samples micro-structured by an external magnetic field have been obtained. The radio-absorbing properties of the MAEs have experimentally been studied in the frequency range 2 ...
Iren Е. Kuznetsova, Vladimir V. Kolesov, Alexander S. Fionov, Elena Yu. Kramarenko, Gennady V. Stepanov, Michail G. Mikheev, Enrico Verona, Igor Solodov   +7 more
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Magnetoactive elastomer as an element of a magnetic retina fixator

Smart Materials and Structures, 2017
Abstract We explore the possibility of creating an effective retinal fixator on the basis of magnetoactive elastomers (MAEs) and systems of permanent magnets. MAEs consist of silicone elastomer matrix with embedded magnetic iron microparticles.
L A Makarova, T A Nadzharyan, Yu A Alekhina, G V Stepanov, E G Kazimirova, N S Perov, E Yu Kramarenko   +6 more
openaire   +1 more source