Effect of particle chain orientation on MRE magneto-induced shear modulus
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Abstract:
In order to analyze the effect of the orientation angle between the internal particle chain and the external magnetic field on the magnetorheological elastomer (MRE) magneto-indced shear modulus, the magnetized particles were described as magnetic dipoles,and only the interaction between the magnetized particles in the same chain was considered. The micro-model of magneto-induced modulus of MRE was deduced, and the trend of magneto-induced modulus changing with orientation angle was predicted at the micro-level. MRE samples with different orientation angles of particle chains were prepared and tested. The results show that the predicted trend of the microscopic model is consistent with the experimental results. The model was simplified and its parameters were identified to obtain a parameter-based model of magneto-induced modulus of MRE, which can predict the actual value of magneto-induced modulus.
