02: A composite made from carbon reinforced epoxy has a diameter 2.5 cm, length 1.25 m, and mass 0.95 kg. The carbon fibers have a modulus of elasticity 340 GPa and a density 1.91 g/cm³. The epoxy matrix has a modulus of elasticity 4 GPA and a density 1.16 g/cm³. Assume there are no voids in the rod. i. What is the volume fraction of the carbon fibers and the epoxy matrix in the rod? ii. What is the predicted value for the modulus of elasticity in the longitudinal direction and direction perpendicular to the carbon fibers?

02: A composite made from carbon reinforced epoxy has a diameter 2.5 cm, length 1.25 m, and mass 0.95 kg. The carbon fibers have a modulus of elasticity 340 GPa and a density 1.91 g/cm³. The epoxy matrix has a modulus of elasticity 4 GPA and a density 1.16 g/cm³. Assume there are no voids in the rod. i. What is the volume fraction of the carbon fibers and the epoxy matrix in the rod? ii. What is the predicted value for the modulus of elasticity in the longitudinal direction and direction perpendicular to the carbon fibers?

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.11P

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