... pipeline procedure extension crack growth calculation fe model pipeline girth weld cycle 2 flaw th cycle 0 cycle fatigue cycle 0 crack extension cdf Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022...

... in bimetallic pipes. It is shown in this paper that such pre-strain has a negligible effect on toughness for undermatch welds. Although most pipeline girth weld flaws are embedded, they are typically approximated by surface breaking flaws in the integrity assessment because the available reference stress...

... of the external pipe is an API 5L Grade X65 pipeline steel whereas the inner clad layer is made of ASTM UNS N06625 Alloy 625. Unloading compliance (UC) testing of the pipeline girth welds employed side-grooved, clamped SE(T) specimens with a weld centerline notch to determine the crack growth resistance curves...

... ECA of Pipeline Girth Weld in Sour Services Zhengmao Yang, Shashi Bhushan Kumar, Jens P. Tronskar Det Norske Veritas (Singapore) 10 Science Park Drive, Singapore ABSTRACT Offshore pipelines and risers constructed from carbon steel have reduced levels of performance when operating in a sour...

... and seismic loading. In such cases pipelines should be designed based on strain capacity. The rigors of strain-based analyses pose a number of challenges, particularly related to pipeline girth welds and general material behavior. This paper presents a summary of an ongoing multi-year project cofunded...

... conditions have one peculiarity consisting of wall thickness reduction as result of plastic strain break process (plastic collapse). Although most of pipeline girth welds" static strength criterions don't take in account the plastic collapse resistance of materials its estimation hardly connects...