Questions from Mechanics

Q: A hemispherical window (or viewport) in a decompression chamber (

A hemispherical window (or viewport) in a decompression chamber (see figure) is subjected to an internal air pressure of 85 psi. The window is attached to the wall of the chamber by 14 bolts. (a) Find...

Q: A rubber ball (see figure) is inflated to a pressure

A rubber ball (see figure) is inflated to a pressure of 65 kPa. At that pressure, the diameter of the ball is 240 mm and the wall thickness is 1.25 mm. The rubber has a modulus of elasticity E = 3.7 M...

Q: (a) Solve part (a) of the preceding problem

(a) Solve part (a) of the preceding problem if the pressure is 8.5 psi, the diameter is 10 in., the wall thickness is 0.05 in., the modulus of elasticity is 200 psi, and Poissonâ...

Q: A spherical steel pressure vessel (diameter 500 mm, thickness 10

A spherical steel pressure vessel (diameter 500 mm, thickness 10 mm) is coated with brittle lacquer that cracks when the strain reaches 150 × 1026 (see figure). (a) What internal pressure...

Q: A spherical tank of diameter 48 in. and wall thickness 1

A spherical tank of diameter 48 in. and wall thickness 1.75 in. contains compressed air at a pressure of 2200 psi. The tank is constructed of two hemispheres joined by a welded seam (see figure). (a)...

Q: Solve the preceding problem for the following data: diameter 1.

Solve the preceding problem for the following data: diameter 1.0 m, thickness 48 mm, pressure 22 MPa, modulus 210 GPa, and Poisson’s ratio 0.29. Data from Problem 9: A spherical t...

Q: A spherical stainless-steel tank having a diameter of 26 in

A spherical stainless-steel tank having a diameter of 26 in. is used to store propane gas at a pressure of 2075 psi. The properties of the steel are as follows: yield stress in tension, 140,000 psi; y...

Q: A cylindrical pressure vessel with flat ends is subjected to a torque

A cylindrical pressure vessel with flat ends is subjected to a torque T and a bending moment M (see figure). The outer radius is 12.0 in. and the wall thickness is 1.0 in. The loads are T = 800 kip-in...

Q: Solve the preceding problem if the diameter is 480 mm, the

Solve the preceding problem if the diameter is 480 mm, the pressure is 20 MPa, the yield stress in tension is 975 MPa, the yield stress in shear is 460 MPa, the factor of safety is 2.75, the modulus o...

Q: A hollow, pressurized sphere having a radius r = 4.

A hollow, pressurized sphere having a radius r = 4.8 in. and wall thickness t = 0.4in. is lowered into a lake (see figure). The compressed air in the tank is at a pressure of 24 psi (gage pressure whe...