Modeling of Magnetic Properties of Magnetorheological Elastomers Using JA Hysteresis Model

Magnetorheological elastomers (MREs) are composite materials that consist of magnetically permeable particles in a nonmagnetic polymeric matrix. Under the influence an external magnetic field, reversible deformation change occurs mechanical properties these materials. Due to their coupled magnetomechanical response, have been found suitable for range applications including tunable vibration absorbers, sensors, and actuators. Notably, improvement such devices prerequisites efficient energy conversion systems, hence need understand further MRE technology. The Jiles-Atherton (JA) theory takes into consideration magneto-coupling experienced by effective domains material. Algorithm based on yields five model parameters; saturation magnetization (M s ), domain density (a), coupling (?), loss coefficient (k), reversibility (c). Using JA theory, parameters were calculated linked physical attributes Fe powder isotropic MRE. results show Ms is reasonably related factor particle's volume fraction used k, a, ? provided support reduced pinning factor, density, increased due changes structure between two From parameters, finite-element modeling (FEM) hysteresis loop was performed. analysis showed modeled coercivity, remanence, coordinates tip vary with geometric position.