Abstract
This work addresses an evaluation procedure for the J-integral in pipeline girth welds with circumferential surface cracks subjected to bending load for a wide range of crack geometries and weld mismatch levels based on the GE-EPRI and the reference stress framework. The study also addresses evaluation of critical flaw sizes for a subsea flowline clad pipe having an undermatched girth weld made of UNS N06625 Alloy 625. The 3-D numerical analyses provide a large set of J-solutions in cracked pipes with mismatched girth welds with implications of the potential applicability of ECA procedures in welded cracked structural components.
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