Crack arrestor design by finite element analysis for an X100 gas transportation pipeline

摘要

THE INTEREST of gas companies in the use of high grade steel pipes, equivalent to X100 and higher, for the construction of long distance gas pipelines has become a consolidated trend in the world, in response to this market demand, steel makers have successfully developed new classes of high grade steel for large diameter pipelines, hut some limitations might occur to their application if important aspects related to their structural reliability, such as the resistance to ductile fracture propagation, are not completely clarified.