The body of a formula one racing car is made up of C-fiber/ Polyester. The weight fraction of C-fiber is 55% in final composite. If the modulus for C-fiber and polyester resin is respectively 400 GN/m 2 and 3.45 GPa, find out the modulus of C-fiber/ Polyester laminate. Also calculate the fraction of externally applied load taken by the C-fiber. Find out the longitudinal tensile strength (σ LTU ) for the laminate. The tensile stress at fiber breaking elongation is 2.1GPa for C-fiber and 0.045 GPa for polyester. [ ρ C-fiber = 1800 Kg/m 3 and ρ polyester = 1100 Kg/m 3 ]
