A continuous and aligned hybrid composite consists of aramid

A continuous and aligned hybrid composite consists of aramid and glass fibers embedded within a polymer resin matrix. Compute the longitudinal modulus of elasticity of this material if the respective volume fractions are 0.24 and 0.28, given the following data. 5.06 GPa 52.9 GPa 32.6 GPa 131 GPa

Solution

E = fraction of fibre * Eof fibre + fraction of matrices * E of matrices

= 131*.24 +72.5*.28 +(1-.28-.24)*2.5

=52.9 GPa (C)