1. THIN PRESSURE VESSELS
By: Praveen Kadian

2. Thin cylinder
Hoop or circumferential stress
This 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.

4.  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

7. Change in volume of cylinder