Determine the maximum and minimum normal stress in the bracket at section a-a when the load is applied at position of x 300 mm.

The frame supports a centrally applied distributed load of 1.8 kip/ft Determine the state of stress at points A and B on member CD and indicate the results on a volume element located at each of these 12 ft points The pins at C and D are at the same location as the neutral axis for the cross-section A -5 ft E TI 3 in. 3 in. 1 in. B 1.5 in. 6 in. 16 ft 1.8 kip/ft D

F The shaft is loaded with two forces as shown and is fixed at A. The strength is defined as the maximum allowable force F that does not produce shear stress above the material's maximum al- lowable value of 4 ksi. Determine the strength. By what factor would the strength increase if the shaft diameter were doubled? (L₁ = 12 in., L₂ = 6 in., and d = 0.5 in.)

Question 2. The hollow steel shaft has a diameter of 65 mm and thickness of 5mm, is subjected to a torque and moment produced by a 3 kN force which is 15 mm from the centre of the shafts cross section. The shafts have the same centroid. a. Using Mohr's circle, determine the principal stress, maximum in-plane shear stress and average normal stress in the at point J and K. b. If the weld has a 30° at point J, what is the maximum shear stress the weld has to with- stand. K 700 mm F=3kN 15 mm c. Determine the maximum bending stress if the hole in the cross section area is now off centre by 2 mm in the x and y direction.