Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading
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 pipelin...
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MDPI AG
2024-11-01
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| author | Tri C. M. Tien Allan Manalo Patrick Dixon Warna Karunasena Hamid Ahmadi Shanika Kiriella Ahmad Salah Brad P. Wham |
| author_facet | Tri C. M. Tien Allan Manalo Patrick Dixon Warna Karunasena Hamid Ahmadi Shanika Kiriella Ahmad Salah Brad P. Wham |
| author_sort | Tri C. M. Tien |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-0b03e6f648b141e5a3799a3ee161ded4 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-0b03e6f648b141e5a3799a3ee161ded42025-08-20T02:26:59ZengMDPI AGApplied Sciences2076-34172024-11-0114221050910.3390/app142210509Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral LoadingTri C. M. Tien0Allan Manalo1Patrick Dixon2Warna Karunasena3Hamid Ahmadi4Shanika Kiriella5Ahmad Salah6Brad P. Wham7Centre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCentre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCenter for Infrastructure, Energy, and Space Testing, University of Colorado Boulder, Boulder, CO 80309, USACentre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCentre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCentre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCentre for Future Materials, University of Southern Queensland, Toowoomba, QLD 4350, AustraliaCenter for Infrastructure, Energy, and Space Testing, University of Colorado Boulder, Boulder, CO 80309, USAThe 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.https://www.mdpi.com/2076-3417/14/22/10509internal replacement pipetrenchlessdiscontinuousadhesivesurface preparationbonding |
| spellingShingle | Tri C. M. Tien Allan Manalo Patrick Dixon Warna Karunasena Hamid Ahmadi Shanika Kiriella Ahmad Salah Brad P. Wham Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading Applied Sciences internal replacement pipe trenchless discontinuous adhesive surface preparation bonding |
| title | Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading |
| title_full | Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading |
| title_fullStr | Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading |
| title_full_unstemmed | Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading |
| title_short | Investigation of Debonding Effect in Internal Replacement Pipe System Under Lateral Loading |
| title_sort | investigation of debonding effect in internal replacement pipe system under lateral loading |
| topic | internal replacement pipe trenchless discontinuous adhesive surface preparation bonding |
| url | https://www.mdpi.com/2076-3417/14/22/10509 |
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