Jump to main content
Jump to site search

Issue 43, 2014

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

Author affiliations

Abstract

The dynamic modulus and the loss factor of magnetorheological elastomers (MREs) of various compositions and anisotropies are studied by dynamic torsion oscillations performed in the absence and in the presence of an external magnetic field. The emphasis is on the Payne effect, i.e. the dependence of the elastomer magnetorheological characteristics on the strain amplitude and their evolution with cyclically increasing and decreasing strain amplitudes. MREs are based on two silicone matrices differing in storage modulus (soft, G′ ∼ 103 Pa, and hard, G′ ∼ 104 Pa, matrices). For each matrix, the concentration of carbonyl iron particles with diameters of 3–5 μm was equal to 70 and 82 mass% (22 and 35 vol%, respectively) in the composite material. Samples for each filler content, isotropic and aligned-particles, are investigated. 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. The results are interpreted as the processes of formation–destruction–reformation of the internal filler structure under the simultaneously applied mechanical force and magnetic field. Impacts of matrix elasticity and magnetic interactions on the filler alignment are elucidated.

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

Article information


Submitted
05 Aug 2014
Accepted
12 Sep 2014
First published
12 Sep 2014

Soft Matter, 2014,10, 8765-8776
Article type
Paper

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

V. V. Sorokin, E. Ecker, G. V. Stepanov, M. Shamonin, G. J. Monkman, E. Yu. Kramarenko and A. R. Khokhlov, Soft Matter, 2014, 10, 8765 DOI: 10.1039/C4SM01738B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements