Study of magnetorheology and sensing capabilities of MR elastomers

Tongfei Tian; W H Li; G Alici

doi:10.1088/1742-6596/412/1/012037

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Study of magnetorheology and sensing capabilities of MR elastomers

Journal article

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Study of magnetorheology and sensing capabilities of MR elastomers

Tongfei Tian, W H Li and G Alici

Journal of Physics: Conference Series, Vol.412(1), pp.1-10

2013

DOI: https://doi.org/10.1088/1742-6596/412/1/012037

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Abstract

This study focuses on the magnetorheology and sensing capability of graphite based Magnetorheological Elastomers (Gr MREs). By introducing graphite (Gr) to conventional MREs, the Gr MREs are derived. The anisotropic sample with 20% graphite weight fraction was selected to be compared with anisotropic conventional MREs. The microstructures of anisotropic Gr MREs and conventional MREs were observed. Both steady state tests and dynamic tests were conducted to study rheological properties of the samples. For dynamic tests, the effects of strain amplitude, and frequency on both storage modulus and loss modulus were measured. For sensing capability, the resistance of selected Gr MREs under different magnetic fields and external loadings is measured with a multi-meter. Either higher magnetic field or more external loading results in the resistance increment. Based on an ideal assumption of perfect chain structure, a mathematical model was proposed to investigate the relationship between the MRE resistance with the external loadings. In this model, the current flowing through the chain structure consists of both tunnel current and conductivity current, both of which depends on external loadings. The modelling parameters were identified and reconstructed from comparison with experimental results. The comparison indicates that both experimental results and modelling prediction agree favourably well. © Published under licence by IOP Publishing Ltd.

Details

Title: Study of magnetorheology and sensing capabilities of MR elastomers
Authors: Tongfei Tian (Author) - University of Wollongong
W H Li (Author) - University of Wollongong
G Alici (Author) - University of Wollongong
Publication details: Journal of Physics: Conference Series, Vol.412(1), pp.1-10
Publisher: Institute of Physics Publishing Ltd.
Date published: 2013
DOI: 10.1088/1742-6596/412/1/012037
ISSN: 1742-6588
Copyright note: Copyright © 2013 Published under licence in Journal of Physics: Conference Series by IOP Publishing Ltd. CC-BY. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99451301602621
Output Type: Journal article

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Web Of Science research areas: Physics, Applied; Physics, Fluids & Plasmas