THIN PRESSURE VESSELS

By: Praveen Kadian

Thin cylinderHoop or circumferential stressThis is the stress which is set up in resisting the bursting effect of the applied pressure and can be most conveniently treated by considering the equilibrium of half of the cylinder as shown in Fig. 9.1.

Total force on half-cylinder owing to internal pressure = p x projected area = p x dL

Total resisting force owing to hoop stress sh set up in the cylinder walls = 2 sh x Lt

2 sh Lt = pdL

Change in volume of cylinder