Two solid cylindrical rods AB and BC are welded together at B and loadedas shown in Figure 2. Knowing that d1 = 30 mm and d2 = 50 mm, find theaverage normal stress in the mid-section of (a) rod AB,...

Two solid cylindrical rods AB and BC are welded together at B and loaded
as shown in Figure 2. Knowing that d1 = 30 mm and d2 = 50 mm, find the
average normal stress in the mid-section of (a) rod AB, (b) rod BC.