Abstract

Fiber metal laminates (FMLs) consist of thin metallic layers alternately bonded together with layers of fiber reinforced composite. FMLs are reported to possess excellent impact properties, improved damage tolerance and outstanding in-plane fatigue and fracture properties. In the present study, FML based on 2024-T3 aluminum (Al) alloy sheet and composite layer consisting of uni-directional glass fiber reinforced epoxy is prepared using hand layup process. High strain rate response of the FML in tension is measured using split Hopkinson pressure bar. High-speed imaging is used to record real time deformation and failure of the FML during high strain rate experiment. Digital Image Correlation is employed to measure the sample strain directly in quasi-static and high strain rate test. Dynamic and quasi-static stress-strain responses of the FML are compared.

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