Authors : A.M. Elhabak, A. Nabil, M. Adly and Nagwa Elzayady
Abstract: FMLs represent a significant evolution in airframe material technology. In the present study, two different types of FMLs (aluminum/reinforced fiberglass and aluminum/reinforced Kevlar) are manufactured and investigated. FMLs specimens were prepared using hand layup process with Vacuum Assisted Process (VAP). Physical properties of the constituents have been determined. The current work is focused on the low velocity impact properties of FMLs material and their fracture mechanics. Quasi-static indentation test for the same impact test condition was carried out to make the preliminary prediction for failure energy levels. The experimental results demonstrate higher impact resistance of FML comprising fiberglass than that including Kevlar fibers. FMLs having Kevlar composite laminate exhibited good impact resistance compared to the their resistance to the quasi-static indentation. Failure modes were analyzed and discussed.
A.M. Elhabak, A. Nabil, M. Adly and Nagwa Elzayady, 2020. Behavior of Hybrid Composite Structure Under Low Impact Velocity. Journal of Engineering and Applied Sciences, 15: 2772-2780.