Sensing Behavior of Magnetorheological Elastomers
Sensing Behavior of Magnetorheological Elastomers
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DOI：
10.1115/1.3160316
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发表时间：
2009-09
影响因子：
3.3
通讯作者：
XiaojieĀ Wang;F. Gordaninejad;Mert Calgar;Yanming Liu;J. Sutrisno;A. Fuchs
中科院分区：
文献类型：
--
作者：
XiaojieĀ Wang;F. Gordaninejad;Mert Calgar;Yanming Liu;J. Sutrisno;A. Fuchs
磁流变弹性体（MRE）由通过暴露于磁场而在聚合物介质中排列的铁磁颗粒组成。弹性体中磁性粒子的结构对外界的机械力或磁场刺激非常敏感，导致磁共振弹性体的多响应行为。在这项研究中，MRE的传感特性进行了研究，通过实验表征MRE材料的电性能和它们的接口与外部刺激（磁场或应力/应变）。提出了一个唯象模型，以了解机械负载和磁场下的MRE的阻抗响应。结果表明，MRE样品表现出显着的变化，响应于压缩变形，以及所施加的磁场的阻抗和电阻的测量值。
A magnetorheological elastomer (MRE) is comprised of ferromagnetic particles aligned in a polymer medium by exposure to a magnetic field. The structures of the magnetic particles within elastomers are very sensitive to the external stimulus of either mechanical force or magnetic field, which result in multiresponse behaviors in a MRE. In this study, the sensing properties of MREs are investigated through experimentally characterizing the electrical properties of MRE materials and their interfaces with external stimulus (magnetic field or stress/strain). A phenomenological model is proposed to understand the impedance response of MREs under mechanical loads and magnetic fields. Results show that MRE samples exhibit significant changes in measured values of impedance and resistance in response to compressive deformation, as well as the applied magnetic field.