DataVXAIP AdvancesPaper
journal article·2025-10-01Open access

Assessing defect safety of girth welds in X80 pipeline under internal pressure and axial loading

Jian Chen, Kai Zhao, Di Zhao, Rui Li, Jinxing Liu

AIP Advances· Volume 15· Issue 10
Publisher pageOpen full text
Source abstract

Abstract

Onshore oil and gas pipelines are usually composed of steel pipe segments linked to each other using the arc welding method on site during construction. Internal surface and embedded cracks may occur during the welding process. Geological movement during service can cause significant axial-direction plastic deformations in the pipeline. In this study, a three-dimensional elastic-plastic finite element analysis of X80 steel pipe girth welds with surface and embedded cracks under biaxial loading is carried out, focusing on the influence of crack sizes on structural safety, and an empirical formula for the crack leading-edge driving force and crack size parameters is proposed based on the reference strain method, which can facilitate engineers to make a quick assessment of pipeline safety.
Source: crossref · Quality: baseline

Research context

Metals & alloys

OpenAlex topics: Material Properties and Failure Mechanisms · Engineering Diagnostics and Reliability · Fatigue and fracture mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

PipeChina Research Institute 1 , Tianjin 300457,

Department of Modern Mechanics, University of Science and Technology of China 2 , Hefei 230027, Anhui,

CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China 3 , Hefei 230027, Anhui,

Faculty of Civil Engineering and Mechanics, Jiangsu University 4 , Zhenjiang 212013, Jiangsu,

Funding

Key Science and Technology Program of the Ministry of Emergency Management of China · Science and Technology Research Project of PipeChina · Science and Technology Project of Jiangsu Provincial Construction System

References (25)

Show source-provided references
1. Makhlouf · 2016 · 105
2. API · 2016
3. BS · 2019
4. Eng. Fract. Mech. · 2015 · 148 · 33710.1016/j.engfracmech.2015.07.061 ↗
5. Int. J. Mech. Sci. · 2020 · 179 · 10562710.1016/j.ijmecsci.2020.105627 ↗
6. Int. J. Fract. · 1981 · 17 · 19310.1007/BF00053520 ↗
7. Eng. Fract. Mech. · 1984 · 19 · 63310.1016/0013-7944(84)90096-1 ↗
8. Eng. Fract. Mech. · 2006 · 73 · 53710.1016/j.engfracmech.2005.09.008 ↗
9. Int. J. Pressure Vessels Piping · 2012 · 89 · 5910.1016/j.ijpvp.2011.09.004 ↗
10. Int. J. Pressure Vessels Piping · 2004 · 81 · 77110.1016/j.ijpvp.2004.04.005 ↗
11. Int. J. Pressure Vessels Piping · 2007 · 84 · 33710.1016/j.ijpvp.2007.02.002 ↗
12. Eng. Failure Anal. · 2015 · 51 · 3710.1016/j.engfailanal.2015.02.018 ↗
13. Eng. Fract. Mech. · 2010 · 77 · 233710.1016/j.engfracmech.2010.04.030 ↗
14. Int. J. Pressure Vessels Piping · 2022 · 197 · 10463110.1016/j.ijpvp.2022.104631 ↗
15. Thin-Walled Struct. · 2019 · 140 · 18210.1016/j.tws.2019.03.038 ↗
16. Int. J. Pressure Vessels Piping · 2023 · 203 · 10494410.1016/j.ijpvp.2023.104944 ↗
17. Eng. Failure Anal. · 2020 · 115 · 10464110.1016/j.engfailanal.2020.104641 ↗
18. Eng. Fract. Mech. · 2012 · 96 · 57010.1016/j.engfracmech.2012.09.005 ↗
19. Eng. Failure Anal. · 2020 · 118 · 10491510.1016/j.engfailanal.2020.104915 ↗
20. Int. J. Offshore Polar Eng. · 2008 · 18 · 183
21. J. Pressure Vessel Technol. · 2009 · 131 · 1243
22. J. Appl. Mech. · 1981 · 48 · 83010.1115/1.3157742 ↗
23. Eng. Fract. Mech. · 2006 · 73 · 158110.1016/j.engfracmech.2005.12.014 ↗
24. Eng. Failure Anal. · 2021 · 129 · 10572910.1016/j.engfailanal.2021.105729 ↗
25. Int. J. Pressure Vessels Piping · 1994 · 60 · 110.1016/0308-0161(94)90107-4 ↗