# What is hoop stress?

Hoop stress is a stress in a pipe wall. It is represented by the forces inside the cylinder acting towards the circumference perpendicular to the length of the pipe.

Hoop stress is derived from Newton's first law of motion. Conceptually, the amount of internal pressure produced must be equal to the stress around the wall of the cylinder to maintain equilibrium and for objects to remain at rest. If forces inside a cylinder are simplified, another stress called longitudinal stress is derived. It is a force pushing against both ends of the pipe. These forces are measured in newtons per square meter (N/m*m) or pascals (Pa).

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Hoop stress is the stress produced as a result of the forces applied from inside a cylindrical pipe that push against the pipe. When pressure inside a cylinder ...
Hoop stress can be described as circumferential stress a type of stress acting on a cylindrically shaped object or part of the object as a result of internal and ...