Sensing capabilities of graphite based MR elastomers

Tongfei Tian; W H Li; Y M Deng

doi:10.1088/0964-1726/20/2/025022

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Sensing capabilities of graphite based MR elastomers

Journal article

Peer reviewed

Sensing capabilities of graphite based MR elastomers

Tongfei Tian, W H Li and Y M Deng

Smart Materials and Structures, Vol.20(2)

2011

DOI: https://doi.org/10.1088/0964-1726/20/2/025022

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Abstract

This paper presents both experimental and theoretical investigations of the sensing capabilities of graphite based magnetorheological elastomers (MREs). In this study, eight MRE samples with varying graphite weight fractions were fabricated and their resistance under different magnetic fields and external loadings were measured with a multi-meter. With an increment of graphite weight fraction, the resistance of MRE sample decreases steadily. Higher magnetic fields result in a resistance increase. Based on an ideal assumption of a perfect chain structure, a mathematical model was developed to investigate the relationship between the MRE resistance with external loading. In this model, the current flowing through the chain structure consists of both a tunnel current and a conductivity current, both of which depend on external loadings. The modelling parameters have been identified and reconstructed from comparison with experimental results. The comparison indicates that both experimental results and modelling predictions agree favourably well.

Details

Title: Sensing capabilities of graphite based MR elastomers
Authors: Tongfei Tian (Author) - University of Wollongong
W H Li (Author) - University of Wollongong
Y M Deng (Author) - Ningbo University, People's Republic of China
Publication details: Smart Materials and Structures, Vol.20(2)
Publisher: Institute of Physics Publishing Ltd.
Date published: 2011
DOI: 10.1088/0964-1726/20/2/025022
ISSN: 0964-1726
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99451239102621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Instruments & Instrumentation; Materials Science, Multidisciplinary