It is desired to produce a continuous and oriented carbon fiber-reinforced epoxy having a modulus of elasticity of at least 69 GPa (10 × 106psi) in the direction of fiber alignment. The maximum permissible specific gravity is 1.40. Given the data in the following table, is such a composite possible? Why or why not? Assume that composite specific gravity may be determined using a relationship similar to Equation 16.10a.

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Specific Gravity Modulus of Elasticity [GPa (psi)] Carbon fiber 1.80 260 (37 × 100) Ероху 1.25 2.4 (3.5 × 105)