Home Journals Articles Updates About
CN
image
收藏切换
Ultimate Load of High-grade Steel Pipes with Corrosion Depressions
收藏切换
PDF
Ying ZHANG1, Wan WU1, *, Jun-lin SHI1, Yi-jia WANG2
Science Technology and Engineering | 2025, 25(17) : 7157 - 7164
Less
收藏切换
Science Technology and Engineering | 2025, 25(17): 7157-7164
• Papers-Mechanical and Instrumental Industry •
Ultimate Load of High-grade Steel Pipes with Corrosion Depressions
Full
Ying ZHANG1, Wan WU1, *, Jun-lin SHI1, Yi-jia WANG2
Affiliations
  • 1 College of Mechanical Engineering, Sichuan University of Science & Engineering, Yibin 644000, China
  • 2 Sichuan Special Equipment Inspection and Research Institute, Chengdu 610000, China
Published: 2025-06-18 doi: 10.12404/j.issn.1671-1815.2405303
Outline
收藏切换

As the service life of China's oil and gas pipelines increase, the pipelines are inevitably subjected to defects such as corrosion and denting due to external factors. It becomes imperative that the impact of these defects, including denting and corrosion, on the ultimate bearing capacity of the pipelines be analyzed. A simulation was conducted on the safety of an X80 pipeline with dents and corrosion defects. By changing factors such as dent length, width, depth, and material type, the influence of a single dent area under the action of spherical and ellipsoidal pressure heads on the ultimate bearing capacity of the pipeline was analyzed. At the same time, the influence of various factors such as the size and spacing of dents and dents on pipeline safety was studied when composite defects such as dents and corrosion coexist. The results show that the length of dents, corrosion length, and corrosion depth are important factors affecting the ultimate bearing capacity of composite defects, and the damage to pipelines is greater when dents act in the vicinity of the corrosion center point.

oil and gas pipelines  /  concavity  /  X80 pipes  /  ultimate load  /  compound defects
Ying ZHANG, Wan WU, Jun-lin SHI, Yi-jia WANG. Ultimate Load of High-grade Steel Pipes with Corrosion Depressions[J]. Science Technology and Engineering, 2025 , 25 (17) : 7157 -7164 . DOI: 10.12404/j.issn.1671-1815.2405303
Appendix
Less
Year 2025 volume 25 Issue 17
PDF
122
59
Cite this Article
BibTeX
Article Info
doi: 10.12404/j.issn.1671-1815.2405303
  • Receive Date：2024-07-15
  • Online Date：2025-12-15
  • Published：2025-06-18
Article Data
Affiliations
History
  • Received：2024-07-15
Funding
Affiliations
    1 College of Mechanical Engineering, Sichuan University of Science & Engineering, Yibin 644000, China
    2 Sichuan Special Equipment Inspection and Research Institute, Chengdu 610000, China
References
Share
https://castjournals.cast.org.cn/joweb/kxjsygc/EN/10.12404/j.issn.1671-1815.2405303
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House