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This study aims to investigate the ductile fracture characteristics of center cracks on the outer surface of girth welds in high-grade steel pipelines under external loads through large-scale CWP tensile tests and advanced numerical simulations.
- Strength matching factor of pipeline girth weld ... - ScienceDirect
The girth weld tensile properties based on even-match or...
- Review and discussion of strength mismatch of girth welds in high ...
This paper provides a comprehensive review on the...
- Strength matching factor of pipeline girth weld ... - ScienceDirect
1 wrz 2021 · The girth weld tensile properties based on even-match or over-match are effective for reducing the stress or strain concentration in the vicinity of girth weld joints in pipelines (Wu et al., 2020, 2021; Zhang et al., 2020).
1 kwi 2024 · This paper provides a comprehensive review on the characteristics of strength mismatch, the difficulties faced in achieving weld strength over-match in high strength pipelines and the impact of weld strength under-match on structural integrity of pipelines.
9 lis 2023 · The fracture analysis of girth-welded pipes is a vital link in the integrity assessment of oil and gas pipelines. However, the effect of welding residual stresses (WRS) on the load-carrying capacity of the girth-welded pipe with the crack remains unclear.
Girth weld in hydrocarbon pipelines has to meet all requirements in terms of minimum tensile strength, fatigue strength, fracture arrest properties, corrosion resistance, hardness, ductility etc. equal to or higher than the base metal of pipe.
28 lip 2023 · Failure Risk Prediction Model for Girth Welds in High-Strength Steel Pipeline Based on Historical Data and Artificial Neural Network. by. Ke Wang. 1,2, Min Zhang. 1,*, Qiang Guo. 3, Weifeng Ma. 2, Yixin Zhang. 4 and. Wei Wu. 4. 1. School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China. 2.
11 cze 2024 · The tested Shielded Metal Arc Welded (SMAW-ed) pipe exhibited undermatched girth welds due to high heat input, while Gas Metal Arc Welding (GMAW) introduced a narrower weld and Heat-Affected Zone (HAZ) with higher hardness than the base metal, indicative of overmatched girth welds.
