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A high-performance magnetorheological material: preparation, characterization and magnetic-mechanic coupling properties

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TLDR
In this article, a magnetorheological plastomer (MRP) was developed by dispersing iron particles into a plastic polyurethane (PU) matrix, and the dynamic properties of the MRP material were systematically tested and the influences of the iron particle content and magnetic field were analyzed.
Abstract
A novel high-performance magnetorheological material, named as magnetorheological plastomer (MRP), was developed by dispersing iron particles into a plastic polyurethane (PU) matrix. The dynamic properties (including storage modulus and loss factor) of the MRP material were systematically tested and the influences of the iron particle content and magnetic field were analyzed. It is found that the anisotropic MRP product with 80% iron particle weight fraction (A-MRP-80), shows a high dynamic property: the maximum magneto-induced storage modulus is 6.54 MPa; the relative MR effect reaches as high as 532%; the loss factor can be reduced to 0.03 by adjusting magnetic field. This kind of MRP shows a much higher magnetorheological performance than the previously reported magnetorhelogical elastomer (MRE). The mechanism for its high MR performance was proposed and the influence of the iron particle distribution and temperature on the dynamic properties were discussed.

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Journal ArticleDOI

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications†

TL;DR: Magnetorheological (MR) materials are classified as smart materials due to their responsiveness to external magnetic stimuli as discussed by the authors, and they have led to broad applications in several potential fields.
Journal ArticleDOI

Electrorheological fluids: smart soft matter and characteristics

TL;DR: In this article, a review of electrorheological fluid, a special type of suspension with controllable fluidity by an electric field, generally contains semiconducting or polarizable materials as electro-responsive parts.
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A state of art on magneto-rheological materials and their potential applications:

TL;DR: A recent progressive review on magneto-rheological materials technology is presented in this paper, focusing on numerous application devices and systems utilizing magneto rheology materials, including fluids, foams, grease, elastomers, and plastomers.
Journal ArticleDOI

A review on magneto-mechanical characterizations of magnetorheological elastomers

TL;DR: Magnetorheological elastomers (MREs) are a class of recently emerged smart materials whose moduli are largely influenced when exposed to an external magnetic field as mentioned in this paper.
Journal ArticleDOI

Experimental study of the magnetic field enhanced Payne effect in magnetorheological elastomers

TL;DR: It is found that the Payne effect significantly increases in the presence of an external magnetic field and varies with the cyclical loading which reaches saturation after several cycles.
References
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Journal ArticleDOI

MR fluid, foam and elastomer devices

TL;DR: Magnetorheological (MR) fluids, foams and elastomers comprise a class of smart materials whose rheological properties may be controlled by the application of an external magnetic field.
Journal ArticleDOI

Damping studies in fiber-reinforced composites : a review

TL;DR: The status of research on damping in fiber-reinforced composite materials and structures with emphasis on polymer composites has been reviewed in this article, where the authors present damping studies involving macromechanical, micro-mechanical and viscoelastic (relaxation and creep) approaches.
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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

Rheology of magnetorheological fluids: models and measurements

TL;DR: In this paper, numerical and analytical models of magnetorheological fluid phenomena that account explicitly for the effects of magnetic nonlinearity and saturation are described, and the field-dependent stress required to shear the chains was then obtained using the Maxwell stress tensor.
Journal ArticleDOI

Development of an adaptive tuned vibration absorber with magnetorheological elastomer

TL;DR: In this paper, an adaptive tuned vibration absorber (ATVA) based on the unique characteristics of magnetorheological elastomers (MREs), whose modulus can be controlled by an applied magnetic field.
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