A simplified analytical model of magnetic force between particles in magnetorheological elastomers

When magnetic force between the particles in magnetorheological elastomers is estimated,the effects of the interactions of particle magnetization,particle structure and saturation of magnetization should be taken into account.In this paper,aparticle unit model has been proposed for analyzing the local magnetic field of magnetorheological elastomers,which are composed by magnetic particles and non-magnetic polymer matrix,based on the principle of magnetism.The magnetization of particles is simplified based on the analysis of the particle unit,and a simple analytic formula for the magnetic force between the particles in magnetorheological elastomers has been obtained.