aE$\_($x$),$E$\_($y$),$v$\_($xy$),$v$\_($yx$),$ and G$\_($xy$).$

b$\backslash$alpha $\_($x$)$ and $\backslash$alpha $\_($y$)$

cE$\_($x$)^($f$)$

d$12$p Stress, $\backslash$sigma $\_($x$)^($FPF$),$ for first ply failure of the laminate under uniaxial

tensile loading $($N$\_($x$)>0)$

Hints: Consider the laminate as a $3-$ply symmetric laminate. For d; assume FPF

occurs at a strain given by the transverse modulus and strength of a ply$.$

$[3$op$].$ Consider the laminate in problem $2$ above with a $5$ mm diameter hole loaded

in tension in the direction of the $0-$deg fibers. Use PSC with a characteristic distance

d$\_(0)=2\mathrm{.}5$mm to calculate the nontched$-$to$-$unnotched strength ratio $(\backslash$sigma $\_($N$)^())/(\backslash$sigma $\_($o$)^()).$