ATi$-6A-4V$ grooved shaft shown in figure is

subjected to rotating$-$bending load. The

dimensions are shown in the figure and the

pending moment is $30$ Nm $.$ The shaft has a ground finish. Determine the life of the shaft.

$r=0\mathrm{.}4mm$

$mD=12mm$

$d=10mm$

$($ekilde d$$nel e$$me y$$k$$ne maruz kalmakta olan Ti$-6$AI$-4$V yivli saft boyutlar ile

birlikte g$$sterilmektedir$.$ E$$me momenti $30$ Nm uygulanmaktad$$r$.$aft$$n y$$zeyi

ta$$lanm$$t$$r$.$aft$$n yorulma $$mr$$n$$ belirleyiniz$).$