The uni-axial tensile response of titanium-based fiber metal laminates

Abstract

Abstract Fiber metal laminates (FMLs) consist of thin layers of metal bonded together with layers of composite based on fiber reinforcement. In the present study, titanium sheets (Ti-6Al-4V) having thicknesses of 0.2 mm, 0.4 mm, and 0.6 mm and glass-fiber reinforced composite layers having uni-directional layup are considered to fabricate FMLs and response of these laminates are evaluated under tension. The consideration for four discrete sequences of stacks is made for FMLs preserving thickness of a total layer of metal same and these laminates are fabricated using a method of hand layup. The elastic modulus, yield strength and ultimate strength of FMLs are theoretically predicted by rule of mixtures (ROM). The layup’s sequence does not affect initial modulus of FMLs subjected to tension. Whereas, the ultimate strength and FMLs’ behavior succeeding ultimate strength are significantly affected by layup’s sequence. The properties of a laminate obtained from experiment and predicted from ROM are found in good agreement with each other.