Influence of interlaminar fracture toughness on impact resistance of glass fibre reinforced polymers

This work is concerned with delamination resistance of glass fibre reinforced polymers (GFRP) and its influence on GFRP's resistance to transverse, point impact. The study used two GFRP, one with polyurethane matrix and the other isophthalic polyester. The two GFRPs show distinctly different mode I delamination resistance. Under the same impact condition, at speeds from 1.5 to 5 m/s, the polyurethane-based GFRP developed a smaller damage size...