Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines
The present research addresses the crack arrest in the submarine pipeline under internal pressure, axial force, and bending moment. The main purpose of the research is to consider tight-fit sleeves as a solution to crack arrest. The stress intensity factor criteria are used to describe the crack beh...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Iranian Association of Naval Architecture and Marine Engineering
2020-10-01
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| Series: | International Journal of Maritime Technology |
| Subjects: | |
| Online Access: | http://ijmt.ir/article-1-692-en.html |
| _version_ | 1818610174627151872 |
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| author | Seyed Mohammad Hossein Sharifi Pedram Edalat Babak Najafi Masoud Bolfakeh |
| author_facet | Seyed Mohammad Hossein Sharifi Pedram Edalat Babak Najafi Masoud Bolfakeh |
| author_sort | Seyed Mohammad Hossein Sharifi |
| collection | DOAJ |
| description | The present research addresses the crack arrest in the submarine pipeline under internal pressure, axial force, and bending moment. The main purpose of the research is to consider tight-fit sleeves as a solution to crack arrest. The stress intensity factor criteria are used to describe the crack behavior. It should be noted that the cracks examined here are inclined through-thickness cracks, which the ABAQUS commercial software used to simulate them. Itchr('39')s noteworthy that Mode I fracture is dealt with, and the other fracture modes are omitted. The results show that the tight-fit sleeves, preferentially arrest the inclined cracks; so that the amounts of the stress intensity factors decrease for all the cracks except for the circumferential cracks to the extent that they become closed. As a result, their growth stops in practice; however, it best reduces the stress intensity factors by up to 65.36% at the circumferential cracks, and their amounts remain non-negative. Tight-fit sleeves create a pressurized region around the inclined cracks. This causes that inclined cracks remain closed. |
| first_indexed | 2024-12-16T15:10:15Z |
| format | Article |
| id | doaj.art-c8e6cddf396147d8bca8f17460a84cf2 |
| institution | Directory Open Access Journal |
| issn | 2345-6000 2476-5333 |
| language | English |
| last_indexed | 2024-12-16T15:10:15Z |
| publishDate | 2020-10-01 |
| publisher | Iranian Association of Naval Architecture and Marine Engineering |
| record_format | Article |
| series | International Journal of Maritime Technology |
| spelling | doaj.art-c8e6cddf396147d8bca8f17460a84cf22022-12-21T22:26:59ZengIranian Association of Naval Architecture and Marine EngineeringInternational Journal of Maritime Technology2345-60002476-53332020-10-0114Summer and Fall 20201320Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine PipelinesSeyed Mohammad Hossein Sharifi0Pedram Edalat1Babak Najafi2Masoud Bolfakeh3 Department of Mechanical Engineering, Petroleum University of Technology Department of Mechanical Engineering, Petroleum University of Technology Iranian Offshore Oil Company (IOOC) Petroleum University of Technology The present research addresses the crack arrest in the submarine pipeline under internal pressure, axial force, and bending moment. The main purpose of the research is to consider tight-fit sleeves as a solution to crack arrest. The stress intensity factor criteria are used to describe the crack behavior. It should be noted that the cracks examined here are inclined through-thickness cracks, which the ABAQUS commercial software used to simulate them. Itchr('39')s noteworthy that Mode I fracture is dealt with, and the other fracture modes are omitted. The results show that the tight-fit sleeves, preferentially arrest the inclined cracks; so that the amounts of the stress intensity factors decrease for all the cracks except for the circumferential cracks to the extent that they become closed. As a result, their growth stops in practice; however, it best reduces the stress intensity factors by up to 65.36% at the circumferential cracks, and their amounts remain non-negative. Tight-fit sleeves create a pressurized region around the inclined cracks. This causes that inclined cracks remain closed.http://ijmt.ir/article-1-692-en.htmlcrack arreststress intensity factorsinclined crackstight-fit sleevesubmarine pipelines |
| spellingShingle | Seyed Mohammad Hossein Sharifi Pedram Edalat Babak Najafi Masoud Bolfakeh Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines International Journal of Maritime Technology crack arrest stress intensity factors inclined cracks tight-fit sleeve submarine pipelines |
| title | Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines |
| title_full | Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines |
| title_fullStr | Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines |
| title_full_unstemmed | Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines |
| title_short | Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines |
| title_sort | numerical assessment of tight fit sleeve clamp in the repair process of cracked submarine pipelines |
| topic | crack arrest stress intensity factors inclined cracks tight-fit sleeve submarine pipelines |
| url | http://ijmt.ir/article-1-692-en.html |
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