Abstract
As a new type of intelligent material with field-dependent properties, Magnetorheological Elastomer (MRE) is attracting more and more attention from domestic and foreign scholars. The MRE devices are expected to be used for vibration reduction in various systems. The requirements of MRE devices motivate the intensive investigations of MREs. The magnetic circuit design of MRE devices is necessary and the magnetic permeability is the premise to implement the design. In this paper, the permeability of MRE was calculated by finite element simulation and compared to the results of Maxwell-Garnet method. A simple chain-like structure of anisotropic MRE was modelled to study the influence of particle gap, particle content and external magnetic field on its permeability. Furthermore, the magnetic properties of MREs with same particle volume fraction and different curing field are tested by vibration sample magnetometer. The results are helpful in understanding the rheological mechanism of MREs, design and applications of MRE devices.
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