A continuous and aligned fiber-reinforced composite is to be produced consisting of 30 vol% aramid fibers and 70 vol% of a polycarbonate matrix; mechanical characteristics of these two materials are as follows:

Also, the stress on the polycarbonate matrix when the aramid fibers fail is 45 MPa (6500 psi).
For this composite, compute
(a) The longitudinal tensile strength, and
(b) The longitudinal modulus of elasticity

Transcribed Image Text:

Moduls of ElasticityTeil Strength [MPa [GPa (psi)] 131 (19 x 1 2.4 (B.5 x 10) (psi)] 3600 (520,000) 65 (9425) Aramid fiber Poycarbonate