The ultimate strength of metallic pipelines will be inevitably affected when they have suffered from structural damage after mechanical interference. The present experiments aim to investigate the residual ultimate bending strength of metallic pipes with structural damage based on large-scale pipe tests. Artificial damage, such as a dent, metal loss, a crack, and combinations thereof, is introduced to the pipe surface in advance. Four-point bending tests are performed to investigate the structural behavior of metallic pipes in terms of bending moment–curvature diagrams, failure modes, bending capacity, and critical bending curvatures. Test results show that the occurrence of structural damage on the pipe compression side reduces the bending capacity significantly. Only a slight effect has been observed for pipes with damage on the tensile side as long as no fracture failure appears. The possible causes that have introduced experimental errors are presented and discussed. The test data obtained in this paper can be used to further quantify damage effects on bending capacity of seamless pipes with similar D/t ratios. The comparison results in this paper can facilitate the structural integrity design as well as the maintenance of damaged pipes when mechanical interference happens during the service life of pipelines.
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February 2019
Research-Article
Experimental Investigation of Residual Ultimate Strength of Damaged Metallic Pipelines
Jie Cai,
Jie Cai
Department of Maritime and
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: J.Cai-2@tudelft.nl
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: J.Cai-2@tudelft.nl
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Xiaoli Jiang,
Xiaoli Jiang
Department of Maritime and
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: X.Jiang@tudelft.nl
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: X.Jiang@tudelft.nl
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Gabriel Lodewijks,
Gabriel Lodewijks
Professor
School of Aviation,
University of New South Wales,
Sydney 2052, NSW, Australia
e-mail: g.lodewijks@unsw.edu.au
School of Aviation,
University of New South Wales,
Sydney 2052, NSW, Australia
e-mail: g.lodewijks@unsw.edu.au
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Zhiyong Pei,
Zhiyong Pei
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: 15827146278@163.com
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: 15827146278@163.com
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Ling Zhu
Ling Zhu
Professor
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: ZL79111@126.com
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: ZL79111@126.com
Search for other works by this author on:
Jie Cai
Department of Maritime and
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: J.Cai-2@tudelft.nl
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: J.Cai-2@tudelft.nl
Xiaoli Jiang
Department of Maritime and
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: X.Jiang@tudelft.nl
Transport Technology,
Delft University of Technology,
Delft 2628 CD, The Netherlands
e-mail: X.Jiang@tudelft.nl
Gabriel Lodewijks
Professor
School of Aviation,
University of New South Wales,
Sydney 2052, NSW, Australia
e-mail: g.lodewijks@unsw.edu.au
School of Aviation,
University of New South Wales,
Sydney 2052, NSW, Australia
e-mail: g.lodewijks@unsw.edu.au
Zhiyong Pei
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: 15827146278@163.com
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: 15827146278@163.com
Ling Zhu
Professor
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: ZL79111@126.com
Departments of Naval Architecture,
Ocean and Structural Engineering,
School of Transportation,
Wuhan University of Technology,
Wuhan, China
e-mail: ZL79111@126.com
1Corresponding author.
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received November 13, 2017; final manuscript received July 18, 2018; published online August 13, 2018. Assoc. Editor: Nianzhong Chen.
J. Offshore Mech. Arct. Eng. Feb 2019, 141(1): 011703 (21 pages)
Published Online: August 13, 2018
Article history
Received:
November 13, 2017
Revised:
July 18, 2018
Citation
Cai, J., Jiang, X., Lodewijks, G., Pei, Z., and Zhu, L. (August 13, 2018). "Experimental Investigation of Residual Ultimate Strength of Damaged Metallic Pipelines." ASME. J. Offshore Mech. Arct. Eng. February 2019; 141(1): 011703. https://doi.org/10.1115/1.4040974
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