Journal ArticleDOI
Field dependence of viscoelastic properties of mr elastomers
C. Bellan,Georges Bossis +1 more
TLDR
In this paper, a magnetoactive elastomer made of micronic carbonyl iron particles, structured in elongated clusters, was studied under traction both in static and dynamic modes and the shape of the stress-strain curves were explained by taking into account the existence of a fiber-like structure.Abstract:
A magnetoactive elastomer made of micronic carbonyl iron particles, structured in elongated clusters and embedded in a silicon elastomer matrix is studied under traction both in static and dynamic modes. The application of a magnetic field of 120 kA/m induces a change in elastic moduli of about 0.6 MPa at strains of 4 to 5%. Still higher changes (4 MPa) are observed in dynamic storage modulus at low strains (10-4 to 10-3). The shape of the stress-strain curves are explained by taking into account the existence of a fiber like structure.read more
Citations
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Journal ArticleDOI
Magnetic responsive polymer composite materials
Julie Thevenot,Julie Thevenot,Hugo Oliveira,Hugo Oliveira,Olivier Sandre,Olivier Sandre,Sébastien Lecommandoux,Sébastien Lecommandoux +7 more
TL;DR: In this article, the authors identified three classes of magnetic responsive composite materials, according to their activation mode and intended applications, which can be defined by the following aspects: their ability to be deformed (stretching, bending, rotation) upon exposure to a magnetic field, the possibility of remotely dragging them to a targeted area, which is particularly interesting for biomedical applications, including cell and biomolecule guidance and separation.
Book ChapterDOI
Magnetic Field-Responsive Smart Polymer Composites
TL;DR: Magnetoelasts as discussed by the authors represent a new type of composite and consist of small magnetic particles, usually in the nanometer to micron range, dispersed in a highly elastic polymeric matrix.
Journal ArticleDOI
Experiments and modeling of iron-particle-filled magnetorheological elastomers
TL;DR: In this article, a combined experimental and theoretical study of the macroscopic response of a particular MRE consisting of a rubber matrix phase with spherical carbonyl iron particles is presented.
Journal ArticleDOI
Effect of a homogeneous magnetic field on the viscoelastic behavior of magnetic elastomers
Gennady V. Stepanov,Sergey S. Abramchuk,D. A. Grishin,L.V. Nikitin,E. Yu. Kramarenko,E. Yu. Kramarenko,Alexei R. Khokhlov,Alexei R. Khokhlov +7 more
TL;DR: In this paper, the elastic modulus of highly elastic magnetic elastomers has been studied by three different experimental techniques: elongation, static and dynamic shears, and it has been shown that the material elasticity increases considerably in an external homogeneous magnetic field of up to 0.3 T (100-fold increase of the tangential modulus has been observed at small 1-4% deformations).
Journal ArticleDOI
Microstructures and viscoelastic properties of anisotropic magnetorheological elastomers
Lin Chen,Xinglong Gong,Weihua Li +2 more
TL;DR: In this article, the microstructures and viscoelastic properties of anisotropic magnetorheological elastomers are investigated and it is shown that their mechanical properties are greatly dependent on the magnetic flux density applied during preparation.
References
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Journal ArticleDOI
Effect of Polymer-Filler and Filler-Filler Interactions on Dynamic Properties of Filled Vulcanizates
TL;DR: In the past few years, an enormous amount of work has been reported on the progress in the application of conventional fillers and the development of new products to improve the reinforcement of rubber, dynamic properties in particular as mentioned in this paper.
Journal ArticleDOI
The Magnetoviscoelastic Response of Elastomer Composites Consisting of Ferrous Particles Embedded in a Polymer Matrix
TL;DR: In this paper, a quasi-static dipole model is presented to examine the magnetoviscoelastic effect of these elastomer composites and the model is semi-empirical in that it may be fit to experimental data over a broad range of applied magnetic fields.
Journal ArticleDOI
Model of magnetorheological elastomers
TL;DR: In this paper, the authors used finite element analysis to show that the shear modulus of typical elastomers is about 50% of the zero-field modulus at saturation and the optimum particle volume fraction for the largest fractional change in modulus is predicted to be 27%.
Journal ArticleDOI
Electroactive and electrostructured elastomers
TL;DR: In this paper, two kinds of filled elastomer, one based on carbonyl iron particles and the second one on silica particles, are analyzed and quantitatively explained with the help of finite element calculation to predict the magnetic forces between the particles.