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Deformation in magnetorheological elastomer and elastomer–ferromagnet composite driven by a magnetic field

2004; IOP Publishing; Volume: 13; Issue: 2 Linguagem: Inglês

10.1088/0964-1726/13/2/009

1361-665X

Gang Zhou, Zhenyu Jiang,

Seismic Performance and Analysis

Magnetorheological elastomer (MRE) is a new class of smart materials, whose modulus can be controlled by the applied magnetic field. In this paper, using a white light speckle technique for deformation analysis, we present the real-time dynamic deformation progress (the vector diagram of the displacement or the whole-field quantitative displacement distribution) of the MRE and the elastomer?ferromagnet composite (EFC) while the magnetic field is turned on. The experimental results verify the prediction presented in a recently published paper, (Borcea and Bruno 2001 J.?Mech.?Phys.?Solids 49 2877?919), and reveals some interesting phenomena which will give us a deeper understanding for such smart materials.