Visco-elastic Control of Elastomer with Magnetic Particles by Applied Magnetic Field

Abstract

The purpose of this study was to explicate the mechanism of transition storage modulus and loss modulus under external magnetic field. Magneto-rheological elastomer (MRE) is expected to be used as damping material and actuator controlled by an external magnetic field. However, magnetic particles' behavior inside of MRE has not been explained completely. Especially, the mechanisms of loss modulus transition under external magnetic field has not been known well. We constructed a simple model with two magnetic particles, and try to make MRE behavior clear. In this report, we show a data of the viscoelastic property of MRE which consists of magnetic particles and polydimethylsiloxane (PDMS). The obtained viscoelastic property is explained by using two magnetic particles model.