Q: The rigid bar CDE is attached to a pin support at E and rests on...
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Q: The rigid bar CDE is attached to a pin support at E and rests on the 30 mm diameter brass cylinder BD. A 22-mm-diameter steel cylinder AC passes through a hole in the bar and is secured by a nut which is snugly fitted when the temperature of the entire assembly is 20 C. The temperature of the brass cylinder is then raised to 50 C while the steel rod remains at 20 C. Assuming that no stresses were present before the temperature change, determine the stress in the cylinder. Cylinder AC: Steel (E = 200 GPa, a = 11.7 x 10-6/ C) Cylinder BD: Brass (E= 105 GPa, a = 20.9 x 10-6/ C) -0.45 m- m- | -0.3 m~|| D 0.3 m B 0.9 m E Further consider cylinder AC an unpressurized steel storage tank having outer diameter of 250 mm, wall thickness of 5 mm and ultimate strength of 420 MPa. Determine the maximum height h to which it can be filled with water if factor of safety 4 is required. Density of water is 9810 N/m. [5 Marks] Q: The rigid bar CDE is attached to a pin support at E and rests on the 30 mm diameter brass cylinder BD. A 22-mm-diameter steel cylinder AC passes through a hole in the bar and is secured by a nut which is snugly fitted when the temperature of the entire assembly is 20 C. The temperature of the brass cylinder is then raised to 50 C while the steel rod remains at 20 C. Assuming that no stresses were present before the temperature change, determine the stress in the cylinder. Cylinder AC: Steel (E = 200 GPa, a = 11.7 x 10-6/ C) Cylinder BD: Brass (E= 105 GPa, a = 20.9 x 10-6/ C) -0.45 m- m- | -0.3 m~|| D 0.3 m B 0.9 m E Further consider cylinder AC an unpressurized steel storage tank having outer diameter of 250 mm, wall thickness of 5 mm and ultimate strength of 420 MPa. Determine the maximum height h to which it can be filled with water if factor of safety 4 is required. Density of water is 9810 N/m. [5 Marks]
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