Compute the longitudinal tensile strength of an aligned glassfiber-epoxy matrix composite in which the average fiber diameterand length are 0.0155 mm (0.60 × 10-4 in.) and 1.07 mm (0.042 in.),respectively, and the volume fraction of fibers is 0.38. Assumethat (1) the fiber-matrix bond strength is 100 MPa (14,500 psi),(2) the fracture strength of the fibers is 3500 MPa (5 × 105 psi),and (3) the matrix stress at composite failure is 5.5 MPa (800psi).
