! Required information The hydraulic cylinder CF, which partially controls the position of rod DE, has been locked in the position shown. Member BD is 15 mm thick and is connected at C to the vertical rod by a 9-mm-diameter bolt. Know that P= 2.9 kN and e = 75°. 100 mm- 175 mn 20° E 200 mm F 45 mm Determine the bearing stress at Cin member BD. The bearing stress at Cin member BD is 50.7| MPa.

The pipe assembly is fixed at A as shown in figure1. The pipe has an inner diameter of 40 mmand outer diameter of 60 mm and is made of A-36 steel. Find the maximum Shear stressesdoe to torsion. XX in the fig is 03.

Axial loads are applied with rigid bearing plates to the solid cylindrical rods shown. The normal stress in aluminum rod (1) must be limited to 18 ksi, the normal stress in brass rod (2) must be limited to 23 ksi, and the normal stress in steel rod (3) must be limited to 14 ksi. Determine the minimum diameter required for each of the three rods. Assume P = 8 kips, Q = 6 kips, R = 16 kips and S = 23 kips. SI (1) VQ (2) (3) A Answer: F₁ = B R C D First: Calculate the internal force (positive if tensile, negative if compresive) in rod (1). Use a FBD cutting through the rod in the section that includes the free end A. i kips.

2. Two 115-mm wide by 15-mm thick steel plates are welded as shown. The load P = 135 kN is concentrically applied and B= 25°. For the xy directions shown, determine a) b) The normal stress or acting perpendicular to the weld; The shear stress try' acting parallel to the weld; Sketch the state of stress to represent results from a) and b) above. В P 2² 115 mm. P

F5. The circular shaft AC is fixed to rigid walls at A and C. The section AB is solid annealed bronze and the hollow section BC is made of aluminum alloy 2024 T-4. There is no stress in the shaft before the 20,000 ft-lb torque is applied. Determine the maximum shearing stress in each shaft after T is applied. Section BC 4 D=4" 20 ft-k 6.5-FE B 5ft Match each item to a choice: TAB TBC 2"