Shear thickening properties of nano SiO₂/PEG dispersion system under impact loading

Effect of boundary dimension on energy absorption behaviour of shear thickening fluids under impact

“…More studies stated that the solidified STFs behaved as a solid-like material such as elastoplastic and fracture performance [12,[51][52][53][58][59][60][61][62] and the impact resistance transferred through interparticle contacts from the container bottom [23,51,63,64]. Further, the transient response and shear jamming of the STF have been characterised by split Hopkinson pressure bar (SHPB) tests [65][66][67][68][69][70][71]. A minimum compressive strain for the transition from liquid to solid-like state is required under high strain rate [65].…”

“…The transition time of the STF, during which the STF transfers from liquid to solid state, is determined to be of the order of few or tens of microseconds by SHPB technique [66,67]. In another study, the first response of the STF during SHPB experiment is between 20 and 25 µs because of the stress wave [68]. The failure of the STF under high strain rate is confirmed, and the possible failure mechanism is the irreversible particle aggregation rather than the particle fracture [69].…”