A microstructural-based approach to model magneto-viscoelastic materials at finite strains

Magneto-active polymers (MAPs) consist of a polymeric matrix filled with magnetisable particles. MAPs may change their mechanical properties (i.e., stiffness) and/or deformation upon the application an external magnetic stimulus. Mechanical responses can be understood as combined contributions both and Moreover, response is defined by interaction between particles field. Common approaches to model are based on phenomenological continuum models, which able predict magneto-mechanical behaviour but sometimes failed illustrate specific features underlying physics. To better understand guide design manufacturing processes, this contribution presents novel constitutive originated from microstructural basis. The formulated within finite framework accounts for viscous (rate) dependences coupling. After formulations, calibrated set experimental data. validated wide range data that show its predictability. Such microstructurally-motivated strain will help in designing complex three-dimensional microstructures.