HIGH TECHNIQUE FOR T-PEEL STRENGTH ENHANCEMENT OF Al/AFRP HYBRID COMPOSITE

The interlaminar peel strength of Al/AFRP (Aluminum alloy/Aramid Fiber Reinforced Plastic) hybrid composite is affected by the adhesive strength between the Al alloy layer and the aramid fiber layer. The study of the tensile strength and the T-peel strength of the Al/AFRP should be accomplished first. Therefore, this study focused on the effect of the resin mixture ratio as the Al/AFRP on the tensile strength and T-peel strength. In conclusions, the resin mixture ratio by equivalence ratio of 〈epoxy resin : curing agent〉 equal to 〈1:1〉 of Al/AFRP-I and the resin mixture ratio by equivalence ratio of 〈epoxy resin : curing agent : accelerator〉 equal to 〈1:1:0.2〉 of Al/AFRP-II showed the highest ultimate tensile strength. After the T-peel test, it is found that the T-peel strength of Al/AFRP-II is approximately 1.5 times higher than that of Al/AFRP-I. Reviewing the characteristics of the tensile and T-peel strengths, the resin mixture ratio 〈1:1:0.2〉 of Al/AFRP-II showed the highest tensile strength and T-peel strength.