Development of magnetorheological fluids within 3D printed elastomeric cellular structures with an accumulator

In this study, a magnetorheological fluid (MRF) was encapsulated in 3D printed cellular elastomeric encapsulant. Mechanical properties, such as stiffness and damping, of the encapsulant containing MRFs can be controlled via applied magnetic field. Such tunability exploited for adaptive vibration control or energy absorption systems. Here, MRF prepared with silicon oil (40% volume fraction) injected into thermoplastic polyurethane (TPU) The wall adjacent to sealing layer had circular opening TPU membrane bonded its perimeter so that pressurized could flow through accumulated resulting pocket. An external field (0–350 mT) sample at time uniaxial dynamic testing 5% pre-strain. MRF-TPU composites were characterized cyclic force-displacement tests (1 Hz) under displacement amplitudes. area curve system an accumulator is about 26% greater than one without accumulator. effect on mechanical properties studied strain amplitude fields.