An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline

Jong Hyun Baek, Young Pyo Kim, Woo Sik Kim, Chang Kyun Oh, Yun-Jae Kim, Chang Sung Seok

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pipelines for natural gas transmission may be subjected to plastic deformation by an outside force such as ground subsidence, ground liquefaction, hot bending, cold bending and mechanical damage. Plastic deformation affects the tensile properties and fracture toughness. Tensile test, Charpy impact test and S-N fatigue test were conducted on an API 5L X65 pipe to investigate the mechanical properties of pipeline subjected to plastic deformation during 3D hot bend. Tensile and fatigue test revealed that yield strength, tensile strength and fatigue strength of the extrados of the 3D bend were higher than those of the intrados of the 3D bend. However, Charpy impact energy of the intrados of the 3D bend was higher than that of the extrados of the 3D bend. There is no variation of strain at the crown according to the numerical analysis to the 3D hot bend. The equivalent strain up to 19 % shows in the side of the intrados of the 3D bend. The equivalent strain up to 15 % displays in the side of the extrados of the 3D bend.

Original languageEnglish
Title of host publicationProceedings of the Biennial International Pipeline Conference, IPC
Pages955-962
Number of pages8
Volume2
DOIs
Publication statusPublished - 2007 Aug 6
Event2006 6th International Pipeline Conference, IPC 2006 - Calgary, AB, Canada
Duration: 2006 Sep 252006 Sep 29

Other

Other2006 6th International Pipeline Conference, IPC 2006
CountryCanada
CityCalgary, AB
Period06/9/2506/9/29

Fingerprint

Application programming interfaces (API)
Plastic deformation
Pipelines
Fatigue of materials
Subsidence
Liquefaction
Tensile properties
Yield stress
Numerical analysis
Fracture toughness
Natural gas
Tensile strength
Display devices
Pipe
Mechanical properties

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Baek, J. H., Kim, Y. P., Kim, W. S., Oh, C. K., Kim, Y-J., & Seok, C. S. (2007). An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline. In Proceedings of the Biennial International Pipeline Conference, IPC (Vol. 2, pp. 955-962) https://doi.org/10.1115/IPC2006-10237

An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline. / Baek, Jong Hyun; Kim, Young Pyo; Kim, Woo Sik; Oh, Chang Kyun; Kim, Yun-Jae; Seok, Chang Sung.

Proceedings of the Biennial International Pipeline Conference, IPC. Vol. 2 2007. p. 955-962.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Baek, JH, Kim, YP, Kim, WS, Oh, CK, Kim, Y-J & Seok, CS 2007, An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline. in Proceedings of the Biennial International Pipeline Conference, IPC. vol. 2, pp. 955-962, 2006 6th International Pipeline Conference, IPC 2006, Calgary, AB, Canada, 06/9/25. https://doi.org/10.1115/IPC2006-10237
Baek JH, Kim YP, Kim WS, Oh CK, Kim Y-J, Seok CS. An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline. In Proceedings of the Biennial International Pipeline Conference, IPC. Vol. 2. 2007. p. 955-962 https://doi.org/10.1115/IPC2006-10237
Baek, Jong Hyun ; Kim, Young Pyo ; Kim, Woo Sik ; Oh, Chang Kyun ; Kim, Yun-Jae ; Seok, Chang Sung. / An experimental and analytical investigation into the 3D hot bend of API 5L X65 pipeline. Proceedings of the Biennial International Pipeline Conference, IPC. Vol. 2 2007. pp. 955-962
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