# HW10 - HOMEWORK PROBLEMS Week 10 Due Friday 18 November 1 A...

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Week 10: Due Friday 18 November 1. A cylindrical pressure vessel of internal diameter 80 inches and wall thickness 1 inch has two flat ends of thickness 1.5 in, each of which is secured to the cylindrical part by 20 bolts, each of 1 inch diameter. The cross-section of the vessel is shown in Figure 1. The pressure of gas inside the vessel is 300 psi. Find (i) the axial and circumferential membrane stresses in the cylinder wall and (ii) the tensile stress in the bolts. 180 80 1.5 1 20 bolts, 1 in. diameter each end all dimensions in inches Figure 1 2. A spherical plastic pressure vessel ( E plastic = 12 GPa, ν plastic = 0 . 5) of mean diameter 2 m, and wall thickness 10 mm is initially just full of water at atmospheric pressure. An additional 4 liters of water is now pumped into the vessel. Assuming that water is incompressible, how much will the pressure inside the vessel increase? 1

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HW10 - HOMEWORK PROBLEMS Week 10 Due Friday 18 November 1 A...

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