Editing Radial stress (section)

==Pressure vessels==
The walls of [[pressure vessel]]s generally undergo triaxial loading. For cylindrical pressure vessels, the normal loads on a wall element are longitudinal stress, circumferential (hoop) stress and radial stress.

The radial stress for a thick-walled [[cylinder (engine)|cylinder]] is equal and opposite to the [[gauge pressure]] on the inside surface, and zero on the outside surface. The circumferential stress and longitudinal stresses are usually much larger for pressure vessels, and so for thin-walled instances, radial stress is usually neglected.