Step 1: Estimate Ply Properties You are investigating a composite material system from a potential material supplier. The supplier guarantees a fibre modulus of Ef =237.0 GPa and the resin has a modulus of Em = 3.21 GPa and a poisson's ratio 'm=[?][?]0.31. The manufacturing process chosen will lead to a fibre volume fraction of Vf = 69.0% with no voids. Using simple rule-of-mixtures calculations: E = EfVf+ EmVm E2 = ( + Y) Vm Em -1 a) (1 mark) Calculate the shear modulus for the resin (to one decimal place): Hint: Resin is isotropic GPa b) (1 mark) Estimate the Longitudinal Young's Modulus for the composite lamina (to one decimal place): GPa c) (1 marks) Estimate the Transverse Young's Modulus for the composite lamina (to one decimal place): GPa