Development of Limit Load Solutions for Correded Gas Pipelines

By Woo-sik Kim, Young Pyo Kim, Y. Kho, Jaeboong Choi. Corrosion, 2002

196 citations recorded by the source corpus.

Pipelines have the highest capacity and are the safest and least environmentally disruptive way for gas or oil transmission. Recently, failures due to corrosion defects became of major concern in maintaining pipeline integrity. A number of solutions have been developed for the assessment of remaining strength of corroded pipelines. However, these solutions are known to be dependent on material properties and pipeline geometries. In this paper, a Fitness-For-Purpose(FFP) type limit load solutions for corroded gas pipelines made of X65 steel is proposed based on experimental results and finite element analyses. For this purpose, a series of burst test with various types of corrosion defects were performed. Finite element simulation was carried out on burst test to derive failure criteria. And then, an extensive series of finite element analyses were performed to obtain a limit load solution for single corrosion defect on the basis of burst test simulation. As a result, an FFP type limit load solution for corroded X65 gas pipelines was proposed.

View Paper: https://www.semanticscholar.org/paper/dc97e8262c64ef19b9a4120c12a7522d2f7e5bbd

Citations in the corpus

• Reliability of pipelines with corrosion defects (2008, unknown): “More recent experimental and numerical analyses [7–13] indicate that these currently accepted assessment codes involve safety factors that can occasionally impose costly and unnecessary repair of defects or replacement of the affected region.”