A typical aluminum-allóy scuba diving tank is shown in thế ngure. The outside diameter óf the tank is 155mm and the wall thickness is 13mm. If the air in the tank is pressurized to 20.5MPA, determine: (a) the longitudinal and hoop stresses in the wall of the tank. (b) the maximum shear stress in the plane of the cylinder wall. (c) the absolute maximum shear stress on the outer surface of the cylindrical wall.

A compound cylinder is made by shrinking a jacket with an outer diameter of 200 mm on a hollow cylinder with diameter of 100 mm and 150 mm. When the compound cylinder is subjected to an internal pressure of 35MNm-2, the maximum circumferential stress in both cylinders is the same. Calculate the maximum stress developed at the internal diameter of the jacket.

Strength of Materials

The cylindrical tank AB has an 192 mm inner diameter and a 7.7 mm wall thickness. The pressure inside the tank is 6 MPa as shown in Figure P11. Use this information to answer questions 11 to 13. Fi _360 14 (a (e D 19 9kN 240 m (a (c Figure I1 le 11. Determine axial stress due to the pressure at point K. (a) 40.4MPA (c) 80.8MPA (a (e (b) 7.46MPA (d) 20.2MPA 12. Determine tangential stress due to the pressure at point K. 72