Material Science
An epoxy matrix is reinforced with 70% glass fibers by volume. Given the elastic moduli of the glass and epoxy as 85 GPa and 3.4 GPa, respectively, and the specific gravity of glass and epoxy is 2.5 and 1.2, respectively, the elastic moduli in GPa of the composite in the direction of the glass fibers is most nearly
27.88
59.50
60.52
85.00
HINT
This question of the day was provided by the courtesy of Professor Autar Kaw of the University of South Florida from the book Fundamentals of Engineering Examination Sample Questions General Engineering.
