Chapter 5 The rod shown in the sketch has two 90° bends. The diameter of the rod is 50 mm. Neglect any transverse shear effects. The material is AISI 1040 cold drawn carbon steel with Sy = 490 N/mm². Determine the factor of safety at the most critical section (Section B) of the rod if the member employing the following failure theories: a) Distortion Energy Ans = 0.3119 b) Maximum Shear Stress Ans 0.3121 Z A 50 mm 50 kN D 300 mm B 25 kN 750 mm