Question

Write about wire wound cylinders.

Answer 1

The three principal Stresses in the Shell are the Circumferential or Hoop Stress, the Longitudinal Stress, and the Radial Stress.

If the Cylinder walls are thin and the ratio of the thickness to the Internal diameter is less than about then it can be assumed that the hoop and longitudinal stresses are constant across the thickness. It may also be assumed that the radial stress is small and can be neglected. In point of fact it must have a value equal to the pressure on the inside surface and zero at the outside surface. These assumptions are within the bounds of reasonable