Differential ballistic response of aramid-glass fibre laminates to soft and hard shots

Ballistic performance of all-glass, all-aramid and aramid-glass fibre-reinforced phenolic resin composite laminates has been evaluated against 0.30 in. calibre soft ball and hard armour piercing (AP) bullets. It is observed that mass effectiveness of glass fibre phenolic composites against impacts by AP bullets can be improved by aramid fibre reinforcement in the back of laminate. The performance of aramid phenolic composites against ball ammunition can be improved by hybridisation with glass fibre reinforcement at the front.