A compound shaft consists of two pipe segments. Segment $(1)$ has an outside diameter of $212mm$ and a wall thickness of $10mm.$

Segment $(2)$ has an outside diameter of $136mm$ and a wall thickness of $14mm.$ The shaft is subjected to torques $T_B=46kN-m$ and $T_C=$

$17kN-m,$ which act in the directions shown. Determine the maximum shear stress magnitude in segment $(2).$

$57\mathrm{.}1$MPa

$74\mathrm{.}2$MPa

$61\mathrm{.}5$MPa

$77\mathrm{.}7$MPa

$46\mathrm{.}7$MPa