A continuous and aligned fiber-reinforced composite is to be produced consisting of 45 vol% aramid fibers and 55 vol% polycarbonate matrix; the mechanical characteristics of these two materials are as follows:

The stress on the polycarbonate matrix when the aramid fibers fail is 35 MPa (5075 psi).
For this composite, compute the following:
(a) The longitudinal tensile strength
(b) The longitudinal modulus of elasticity?

Transcribed Image Text:

Modulus of Elasticity Tensile Strength [GPa (psi)] [MPa (psi)] Aramid fiber 131 (19 x 106) 3600 (520,000) Polycarbonate 2.4 (3.5 x 105) 65 (9425)