Journal ArticleDOI
Model of magnetorheological elastomers
TLDR
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%.Abstract:
Magnetorheological elastomers consist of natural or synthetic rubber filled with micron-sized magnetizable particles. During curing of the elastomer, an applied magnetic field aligns the particles into chains. The shear modulus of the resulting cured material is sensitive to magnetic fields of several kOe magnitude. Such sensitivity to magnetic field makes these materials attractive for applications in automotive mounting components. At large fields (magnetic induction B>1 T), the Fe particles are completely magnetized or saturated. Calculations using finite element analysis show that for typical elastomers the increase in shear modulus due to interparticle magnetic forces at saturation is about 50% of the zero-field modulus. The optimum particle volume fraction for the largest fractional change in modulus at saturation is predicted to be 27%. Calculations of the zero-field shear modulus perpendicular to the chain axis indicate that it does not exceed the modulus of a filled elastomer with randomly disper...read more
Citations
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Modeling of magnetostriction of soft elastomer
TL;DR: In this paper, the model of movable cellular automata (MCA) is used for modeling the magnetostriction elastomer, where the external magnetic field acts on each particle which leads to microscopic deformation of the material and consequently to changing of its shape.
Journal ArticleDOI
Design and performance study of a segmented intelligent isolation bearing
TL;DR: In this article, a segmented intelligent isolation bearing (SIIB) is designed and manufactured, which can meet the requirements of seismic fortification under three sei..., which is a novel type of isolator, named SIIB.
Journal ArticleDOI
Modified Bouc-Wen Model Based on Fractional Derivative and Application in Magnetorheological Elastomer
TL;DR: In this article, a modified Bouc-Wen model based on fractional derivative for MRE in a nonlinear viscoelastic region was established, and the model's validity was verified by fitting the experimental data of stress and strain measured in shear mode.
Journal Article
Numerical simulation of the beam made of magnetorheological elastomer bending in the magnetic field
TL;DR: In this paper, the verification process of the applied FE modelling method is presented, based on the three poi nt bending experiment, and the results of that exp eriment were used to evaluation of the correction on numerical model and analysis.
Journal ArticleDOI
Experimental investigation of the effect of ferromagnetic particles addition on mechanical properties of magneto-rheological materials
Uğur Mazlum,Recep Gümrük +1 more
TL;DR: In this article, the compressive mechanical properties of MRE materials produced by adding four different magnetic particles in RTV (room temperature vulcanizing) silicone elastomer are investigated.
References
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Journal ArticleDOI
Theory of Filler Reinforcement
TL;DR: In this article, the authors generalized the model for ellipsoidal (including plate-and rod-like) filler particles and extended it to the computation of various properties in terms of the properties of the matrix and of the fillers.
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A model of the behaviour of magnetorheological materials
TL;DR: In this paper, a quasi-static, one-dimensional model is developed that examines the mechanical and magnetic properties of magnetorheological materials, and the model attempts to account for magnetic nonlinearities and saturation by establishing a mechanism by which magnetic flux density is distributed within the composite material.
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Encyclopedia of Applied Physics
TL;DR: The 23-volume "Encyclopedia of Applied Physics" seeks to demonstrate the synergy between physics and technological applications as discussed by the authors, and provides a broad overview of the main aspects of physics and their applications.
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Commercial magneto-rheological fluid devices
TL;DR: Controllable magnetorheological (MR) fluid devices have reached the stage where they are in commercial production as discussed by the authors, and such devices are finding application in a variety of real world situations ranging...
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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.