Which among the following stress act along the circumference of the cylinder?

Concept:

Circumferential stress:

• Circumferential stress is the stress acting along the circumferential direction, it is generally tensile in nature.
• Circumferential stress/Hoop stress = \(\sigma _h=\frac{PD}{2t}\)

Longitudinal stress:

• Longitudinal stress is the stress which acts along the length and it is also tensile in nature whereas radial stress which acts in the direction of the radius is compressive in nature.
• Longitudinal stress = \(\sigma _l=\frac{PD}{4t}\)

Where P = pressure due to flowing fluid, d = diameter, and t = thickness of the shell