Field-induced surface deformation of magnetoactive elastomers with anisometric fillers: a single-particle model

摘要: Surface relief of magnetoactive elastomers (MAEs) based on soft polymer matrices filled with anisometric magnetically hard fillers is studied theoretically in magnetic fields applied perpendicular to the MAE surface. A single-particle 2D cell model describing rotation one individual elliptical particle a near-surface layer developed. The equilibrium angle particles defined by balance between Zeeman, anisotropy and elastic (generated matrix) energy increments. Stoner-Wohlfarth used describe properties filler while as function evaluated numerically using FEM simulations. representative surface system constructed via superposition cells field-driven particles, characteristics are derived for various sets geometric statistical parameters. Limitations proposed approach have been discussed.