Time-dependent reliability assessment of steel pipelines subjected to localized corrosion

Wang, C; Teh, LH; Li, Y

Time-dependent reliability assessment of steel pipelines subjected to localized corrosion

Wang, C

Teh, LH Li, Y

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Publisher:: TAYLOR & FRANCIS LTD
Publication Type:: Journal Article
Citation:: Structure and Infrastructure Engineering, 2023, 19, (11), pp. 1505-1515
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Wang, C https://orcid.org/0000-0002-2802-1394
dc.contributor.author	Teh, LH
dc.contributor.author	Li, Y
dc.date.accessioned	2024-06-05T02:11:02Z
dc.date.available	2024-06-05T02:11:02Z
dc.date.issued	2023-01-01
dc.identifier.citation	Structure and Infrastructure Engineering, 2023, 19, (11), pp. 1505-1515
dc.identifier.issn	1573-2479
dc.identifier.issn	1744-8980
dc.identifier.uri	http://hdl.handle.net/10453/179409
dc.description.abstract	This paper proposes a semi-analytical method for the time-dependent reliability assessment of steel pipelines exposed to localized corrosion. The failure modes considered in this paper include corrosion perforation and local burst due to the growth of defect depth and length. For a short pipeline, a spatial-temporal Poisson model is used to describe the occurrence of corrosion defects. The method is further generalized for the reliability assessment of a long pipeline, which is treated as a series system consisting of different segments. The spatial correlation of the behaviour of adjacent segments is taken into account, and is modeled by the Nataf transformation method. An example is presented to demonstrate the applicability of the proposed method. Analytical results show that the reliability of a short pipeline can be significantly underestimated if the assessment method for a single corrosion defect is used instead. For a long pipeline, the failure probability is smaller in the presence of a stronger spatial correlation between different segments, suggesting that the manufacturing procedure and assembling practice of different segments should be synchronized with each other in order to improve pipeline reliability.
dc.language	English
dc.publisher	TAYLOR & FRANCIS LTD
dc.relation.ispartof	Structure and Infrastructure Engineering
dc.relation.isbasedon	10.1080/15732479.2022.2033799
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering
dc.subject.classification	Civil Engineering
dc.subject.classification	4005 Civil engineering
dc.title	Time-dependent reliability assessment of steel pipelines subjected to localized corrosion
dc.type	Journal Article
utslib.citation.volume	19
utslib.for	0905 Civil Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2024-06-05T02:11:01Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	19
utslib.citation.issue	11

Abstract:

This paper proposes a semi-analytical method for the time-dependent reliability assessment of steel pipelines exposed to localized corrosion. The failure modes considered in this paper include corrosion perforation and local burst due to the growth of defect depth and length. For a short pipeline, a spatial-temporal Poisson model is used to describe the occurrence of corrosion defects. The method is further generalized for the reliability assessment of a long pipeline, which is treated as a series system consisting of different segments. The spatial correlation of the behaviour of adjacent segments is taken into account, and is modeled by the Nataf transformation method. An example is presented to demonstrate the applicability of the proposed method. Analytical results show that the reliability of a short pipeline can be significantly underestimated if the assessment method for a single corrosion defect is used instead. For a long pipeline, the failure probability is smaller in the presence of a stronger spatial correlation between different segments, suggesting that the manufacturing procedure and assembling practice of different segments should be synchronized with each other in order to improve pipeline reliability.

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http://hdl.handle.net/10453/179409