Study of the mechanical strength of pipes when the gas pipeline pressure category changes
Abstract
Study of the mechanical strength of pipes when the gas pipeline pressure category changes
Incoming article date: 19.01.2026The article examines the criteria for the mechanical strength of pipelines made of steel and polyethylene pipes when the pressure category is increased as part of the reconstruction of gas distribution networks. The minimum values of the pipe wall thickness are determined, taking into account the maximum allowable values of the temporary resistance and yield strength of the pipe material. It is determined that the conditions for the optimal pipe wall thickness are met for the entire range of steel pipes used. For polyethylene pipes, the required mechanical strength depends on the standard size coefficient.
Keywords: polyethylene gas pipelines, dynamic load, stability of the circular cross-section, external pressure