Effect of MWCNT on CFRP impregnated with shear thickening fluids under high strain rate impact

This study investigates the effect of multi-walled carbon nanotubes (MWCNT) on high strain rate properties fiber reinforced polymer (CFRP) fabric impregnated with shear thickening fluids (STF). Three GFRP-STF and twelve GFRP-MWCNT/STF composite specimens were conducted using a split Hopkinson pressure bar (SHPB). Spherical silica nanoparticles (20.0 wt%) polyethylene glycol used to prepare silicon-based-STF (SiO 2 /STF). On this basis, MWCNT 0.4, 0.8, 1.2 wt% further synthesize MWCNT/STF, respectively. The SHPB test showed that MWCNT/STF has more significant effect, stress increases 71.1%, 57.5%, 26.0% under 3800 s −1 , 5100 6100 results also significantly improved yield energy absorption SiO /STF rate. maximum increase was in 229.1%. CFRP-MWCNT/STF revealed treatment enhanced impact CFRP-SiO /STF. is up 27.9%, 133.6%, 165.7% stress, toughness, efficiency, mass fraction affects loading, but decreases Thus, suitable for application environment than