Experimental Study on Puncture Resistance of 2d and 3d Glass Fabrics Reinforced With Shear Thickening Fluid

In this study, the quasi-static puncture resistance of neat and shear thickening fluid impregnated kevlar, 2d, and 3d-glass fabrics were investigated using a universal testing machine. for the synthesis of the shear thickening fluid, silica nanoparticles were dispersed in polyethylene glycol in the mass fraction of 20, 25, 30, and 35 wt%. the influence of the shear thickening fluid concentration on the puncture resistance of the impregnated 3d-glass fabrics was examined and compared with the neat samples. the results revealed the puncture resistance of the impregnated 3d-glass fabrics increased with raising the concentration from 20 to 30 wt% (637 to 688 n). however, the performance of the 35 wt% impregnated sample was reduced (657 n). the 30 wt% impregnated 3d-glass fabric showed the most puncture resistance, such that its peak force (688 n) was 17% higher than the neat case (590 n). the results were compared with those of kevlar and four-ply 2d-glass fabrics, and it was observed that the 30 wt% effect on the 3d fabrics was more evident than them. unlike the 2d-glass fabrics, the bending angle (θ) for the 3d-glass fabrics decreased by 10° and as a result, their flexibility lessened. the thickness of the impregnated 2d-glass fabric increased more than the 3d fabrics (27% vs. 4%).