Abstract Magnetorheological elastomers are a type of smart hybrid material which combines elastic properties of a soft elastomer matrix with magnetic properties of magnetic micro particles. This leads to a material with magnetically controllable mechanical properties of which the magnetorheological effect is the best known. The addition of electroconductive particles to the polymer mix adds electrical properties to the material behaviour. The resulting electrical resistance of the sample can be manipulated by external magnetic fields and mechanical loads. This results in a distinct interplay of mechanical, electrical and magnetic effects with a highly complex time behaviour. In this paper a mechanical characterisation on multiple time scales was conducted to get an insight on the short and long-term electrical and mechanical behaviour of this novel material. The results show a complex resistivity behaviour on several timescales, sensitive to magnetic fields and strain velocity. The observed material exhibits fatigue and relaxation behaviour, whereas the magnetorheological effect appears not to interfere with the piezoresistive properties.

中文翻译：

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导电磁流变弹性体多时间尺度的力学表征

摘要 磁流变弹性体是一种结合了软质弹性体基体的弹性和磁性微粒磁性的智能混合材料。这导致材料具有磁控机械特性，其中磁流变效应最为人所知。向聚合物混合物中添加导电颗粒为材料行为增加了电性能。样品产生的电阻可以通过外部磁场和机械负载来控制。这导致机械、电和磁效应与高度复杂的时间行为的明显相互作用。在本文中，进行了多个时间尺度的机械表征，以深入了解这种新型材料的短期和长期电气和机械行为。结果显示了几个时间尺度上的复杂电阻率行为，对磁场和应变速度敏感。观察到的材料表现出疲劳和松弛行为，而磁流变效应似乎不会干扰压阻特性。