Abstract

A polyurethane-based magnetorheological elastomer (MR elastomer) was designed, and the magnetorheological effect (MR effect) under shear mode was systematically tested by the designed test set. The results show that the relative MR effect increases with the exterior magnetic filed strength and decreases as the incentive amplitudes increasing. The preload displacement also directly determines the relative MR effect and too large deformation will make the MR effect decreased sharply. But the incentive frequency has no very obviously influence on the relative MR effect.

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