Question 3 Consider the shaft shown in the figure below. The shaft is simply supported on A and D. The shaft is under bending induced by the load F-2kN shown. F 20 10 mm mm N A B 200mm 150mm R = 2mm -4.4 .K = 0.632 +0.377 (2)* + (7)-0.5. kn 700mm C R = 2mm OR 1000mm -0.14-0.363(P/ +0.503 (P/)* 1-2.39 (P/a) +3.368 (P/a)* = 2mm D 32M The reference stress for bending is defined as: %0 = For 0.002 r/d 0.3 and 1.01 D/ds 6.0, and the Stress concentration Factor for bar bending is: d N 2. 1. Calculate the support forces on A and D and the bending moments at B and C. Calculate the nominal and the maximum stress in the shaft at the position B, considering stress concentrations.