Bending fatigue behaviour of internal replacement pipe systems
Article
Kiriella, Shanika, Manalo, Allan, Tien, Cam Minh Tri, Ahmadi, Hamid, Dixon, Patrick G., Karunasena, Warna, Salah, Ahmad and Wham, Brad P.. 2024. "Bending fatigue behaviour of internal replacement pipe systems." Composite Structures. 331. https://doi.org/10.1016/j.compstruct.2024.117910
Article Title | Bending fatigue behaviour of internal replacement pipe systems |
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ERA Journal ID | 3731 |
Article Category | Article |
Authors | Kiriella, Shanika, Manalo, Allan, Tien, Cam Minh Tri, Ahmadi, Hamid, Dixon, Patrick G., Karunasena, Warna, Salah, Ahmad and Wham, Brad P. |
Journal Title | Composite Structures |
Journal Citation | 331 |
Article Number | 117910 |
Number of Pages | 27 |
Year | 2024 |
Publisher | Elsevier |
ISSN | 0263-8223 |
1879-1085 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compstruct.2024.117910 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0263822324000382 |
Abstract | Internal replacement pipe (IRP) systems are becoming an effective rehabilitation technique for legacy oil and gas pipelines with defects and discontinuities. Under repetitive traffic loads, the IRP-repaired pipes are subjected to fatigue. However, existing knowledge on the fatigue behaviour and remaining service life of IRP systems with circumferential discontinuities under cyclic bending is limited. Therefore, this paper investigated numerically the bending fatigue behaviour of legacy pipelines with circumferential discontinuities rehabilitated with IRP made from various material systems. The influence of the discontinuity width of the host pipe, thickness and elastic modulus of IRP, and level of traffic loading on the fatigue behaviour is evaluated. The results show that the tensile stress concentration at the discontinuity edge controls the bending fatigue behaviour of fully bonded IRP. The critical stresses and the minimum fatigue lifetimes are considerably influenced by the thickness and elastic modulus of the IRP systems, and the level of traffic loading while the width of the circumferential discontinuity has an insignificant effect. Multiple regression analyses show that the level of the traffic load has the most significant effect on the critical stress generated in the IRP, while the largest contribution to the minimum fatigue life comes from the elastic modulus of the repair material. |
Keywords | Finite element analysis; Internal replacement pipe (IRP) ; Gas pipelines ; Repetitive traffic loading ; Stress-life method ; Multiple regression analysis |
Related Output | |
Is part of | Static and fatigue behaviour of internal replacement pipe systems subjected to surface load from vehicular traffic |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | This article is part of a UniSQ Thesis by publication. See Related Output. |
Byline Affiliations | Centre for Future Materials |
University of Colorado Boulder, United States |
Permalink -
https://research.usq.edu.au/item/z5v3q/bending-fatigue-behaviour-of-internal-replacement-pipe-systems
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