(Solved): A 2 -in dia. bar made of AISI 1018 HR steel and welded with a in filled weld is subjected to the lo ...

A 2 -in dia. bar made of AISI 1018 HR steel and welded with a in filled weld is subjected to the loading indicated. The force \( F \) and the torque \( T \) are given as 2 kips and \( 15 \mathrm{kip} \)-in, respectively. An E7010 Electrode is used. (a) Estimate the maximal shear stress in the weld throat. (Hint: Need to consider where the maximal shear stress occurs) (b) Find the yielding factor of safety of the welded joint (c) Find the fatigue factor of safety of the welded joint if the force remains the same while the torque is varied between 10 to 15 kip-in. Note that 1) Set the shear stress concentration factor be \( 2.7 \) for both yielding and fatigue in this problem and 2) Assume that the permissible shear stress in this case is for weldment and for the attachment.