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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Featured Application

Rehabilitation of Oil and Gas Pipelines.

Abstract

The aging pipeline infrastructure around the world necessitates immediate rehabilitation. Internal replacement pipe (IRP) is a trenchless system offering a versatile and cost-effective solution across a variety of industries, including oil, natural gas, water, and wastewater. As a structural pipeline repair system, IRPs are subject to lateral deformation because of surface traffic loading. The present study evaluates the impact of adhesion between the host pipe and the IRP, with a focus on assessing the debonding effect on the behavior of the repair system under lateral deformation and bending. This was achieved using a comprehensive approach, including experimental, numerical, and analytical techniques. Varying levels of adhesive strength resulting from different methods of surface preparation were considered. The effectiveness of the IRP system on both discontinuous host pipes with various crack widths and continuous host pipes was also investigated. The results demonstrate that adhesive strength exerts a significant influence on the repair system, especially in the case of narrow circumferential cracks, while its impact on the continuous system is minimal. For optimal performance, it is essential to choose adhesives that possess sufficient shear strength while also accounting for the required debonding length. This approach ensures that minor discontinuities are effectively controlled, thereby enhancing the system′s fatigue life. The reliable determination of the maximum allowable shear strength for the adhesive or the debonding length can ensure that it does not negatively affect fatigue life. The findings presented in this study offer new insights into the development of trenchless repair techniques that can enhance system performance and extend service life.

Details

Title
Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading
Author
Tien, Tri C M 1 ; Manalo, Allan 1 ; Dixon, Patrick 2 ; Karunasena, Warna 1   VIAFID ORCID Logo  ; Ahmadi, Hamid 1   VIAFID ORCID Logo  ; Kiriella, Shanika 1   VIAFID ORCID Logo  ; Ahmad, Salah 1 ; Wham, Brad P 2   VIAFID ORCID Logo 

 Centre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, Australia; [email protected] (A.M.); [email protected] (W.K.); [email protected] (H.A.); [email protected] (S.K.); 
 Center for Infrastructure, Energy, and Space Testing, University of Colorado Boulder, Boulder, CO 80309, USA; [email protected] (P.D.); 
First page
10509
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
20763417
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3132840321
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.