Stresses in Thin-Walled Tubes or Cylinders

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When a thin-walled tube or cylinder is subjected to internal pressure a hoop and longitudinal stress are produced in the wall.

Hoop Stress

The hoop stress can be expressed as:

σ_h = p d / 2 t         (1)

where

σ_h = hoop stress (MPa, psi)

p = internal pressure in the tube or cylinder (MPa, psi)

d = internal diameter of tube or cylinder (mm, in)

t = tube or cylinder wall thickness (mm, in)

Longitudinal Stress

The longitudinal stress can be expressed as:

σ_l = p d / 4 t         (2)

where

σ_l = longitudinal stress (MPa, psi)

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Related Topics

• Mechanics - Kinematics, forces, vectors, motion, momentum, energy and the dynamics of objects

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