Hoop strain of pipe

Hoop strain in a pipe refers to the circumferential deformation that occurs when the pipe is subjected to internal or external pressure. It is typically expressed as a dimensionless ratio of the change in diameter to the original diameter of the pipe. This strain is crucial for determining the pipe's ability to withstand pressure without failure and is influenced by factors such as material properties, wall thickness, and the type of loading. Understanding hoop strain helps engineers design safer and more efficient piping systems.