For the IM-9/8551-7 carbon/epoxy composite rod design of Problem 3.3 in Chapter 3, what would be the increase in the longitudinal tensile strength compared with that of the original 6061-T6 aluminum...

For the IM-9/8551-7 carbon/epoxy composite rod design of Problem 3.3 in Chapter 3, what would be the increase in the longitudinal tensile strength compared with that of the original 6061-T6 aluminum alloy design?

How would the answer to Problem 1.6 in Chapter 1 change if the flywheel  ring  is made of IM-7/8552 carbon/epoxy composite with fibers oriented  in the circumferential direction? Assume a fiber volume fraction υ_f
= 0.6.