A knuckle joint, shown in Fig. Q1, is used to connect two circular rods and it is subjected to a pull force of 100 kN. a) To design, different parts of the joint, select appropriate (optional) materials and factor of safety. Designate the material and their yield stress and afterwards determine the corresponding material allowable values. b) Depending on the chosen yield stress and factors of safety, determine the key dimensions of the joint parts including , , , . c) What happens if the applied load is eccentric? Please provide explanation to your answer on how the stresses will change (increase or decrease) and how we can calculate them.