(Solved): 8. (10) A continuous and aligned CFRP composite is subjected to an external tensile load of 35,000 ...

8. (10) A continuous and aligned CFRP composite is subjected to an external tensile load of $35,000\mathrm{N}$ in the longitudinal direction. The carbon fibers ( $23\%$ volume fraction) have an elastic modulus of 285 $\mathrm{GPa}$, the epoxy matrix elastic modulus is $10\mathrm{GPa}$. The stress sustained by the fiber is $250\mathrm{MPa}$. The strain on the fiber is $1.75\times 10^{-3}$. Calculate the force on the fiber phase. A. $33994\mathrm{N}$ B. $35000\mathrm{N}=$ C. $4111\mathrm{N}$ (s) $3095\mathrm{N}$ E. $31310\mathrm{N}$ F. $3679\mathrm{N}$ G. $6555\mathrm{N}$ H. none of the above 3