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Question: from the moduli of elasticity data in the table below...

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Problem 16.18 From the moduli of elasticity data in the table below for glass fiber-reinforced polycarbonate composites, determine the value of the fiber efficiency parameter for each of (a) 20 (b) 30, and (c) 40 vol% fibers; also (d) estimate the modulus of elasticity for 50 vol% of glass fibers. Assume that the modulus of elasticity for glass fibers is 72.5 GPa. Fiber reinforcement (vol%) Modulu s of elasticity (GPa) Unreinforced 2.29 5.93 20 30 8.62 40 11.6 (c) GPa

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