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It is desired to produce an aligned carbon fiber-epoxy matrix

It is desired to produce an aligned carbon fiber-epoxy matrix

It is desired to produce an aligned carbon fiber-epoxy matrix composite having a longitudinal tensile strength of 750MPa (109,000psi). Calculate the volume fraction of fibers necessary if (1) the average fiber diameter and length are 1.2 ( 10-2 mm (4.7 ( 10-4 in.) and 1 mm (0.04 in.), respectively; (2) the fiber fracture strength is 5000MPa (725,000psi); (3) the fiber-matrix bond strength is 25MPa (3625psi); and (4) the matrix stress at fiber failure is 10MPa (1450psi).

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