Experimental investigation of bonding characteristics in composite bulletproof panels for small hulls
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In this study, the bonding performance of different materials was evaluated to fabricate integral ultra-high molecular weight polyethylene (UHMWPE) composite bulletproof panels for small hulls. Thus, 12 types of bonded specimens were fabricated using high density polyethylene (HDPE), glass fiber reinforced polymer (GFRP), and aluminum (as hull materials); carbon fiber, aramid fiber, and aluminum (as shielding materials); and Permabond TA4605 and Rasatek (as adhesives). Subsequently, single-lap shear bond strength tests were performed. The results show the normalized shear bond strength for each material composition and the main effects of the considered hull materials, shielding materials, and adhesives on the bond strength. Furthermore, the ballistic resistance performance was evaluated in accordance with the National Institute of Justice (NIJ) Level III ballistic resistance standard using specimens of composite bulletproof panels shielded with carbon fiber and aramid fiber and bonded to the HDPE hull material and UHMWPE bulletproof panels. The results confirmed no difference in the bulletproof performance of the abovementioned composite bulletproof panels due to a change in bonding strength. These findings are expected to facilitate the construction of integral composite bulletproof panels and lightweight composite bulletproof panels.
Abstract
In this study, the bonding performance of different materials was evaluated to fabricate integral ultra-high molecular weight polyethylene (UHMWPE) composite bulletproof panels for small hulls. Thus, 12 types of bonded specimens were fabricated using high density polyethylene (HDPE), glass fiber reinforced polymer (GFRP), and aluminum (as hull materials); carbon fiber, aramid fiber, and aluminum (as shielding materials); and Permabond TA4605 and Rasatek (as adhesives). Subsequently, single-lap shear bond strength tests were performed. The results show the normalized shear bond strength for each material composition and the main effects of the considered hull materials, shielding materials, and adhesives on the bond strength. Furthermore, the ballistic resistance performance was evaluated in accordance with the National Institute of Justice (NIJ) Level III ballistic resistance standard using specimens of composite bulletproof panels shielded with carbon fiber and aramid fiber and bonded to the HDPE hull material and UHMWPE bulletproof panels. The results confirmed no difference in the bulletproof performance of the abovementioned composite bulletproof panels due to a change in bonding strength. These findings are expected to facilitate the construction of integral composite bulletproof panels and lightweight composite bulletproof panels.