A. Calculate the modulus, the ratio of fiber stress to matrix stress, the ratio of fiber stress to composite stress for unidirectional composites with VF = 10%,25%, 50% & 75%. Assume the composites are loaded in the fiber direction and EF = 400 GPa and EM = 3.2 GPa. Present your results in the table below. Hint: Because of strain compatibility (the composite, the fibers, and the matrix all have equal strain in uniaxial tension), you may assume &c = EF = EM- Hint 2: Recall o = E VE 10% 25% 50% 75% Ec [GPa] OF/OM OF/OC