A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects
The tensile armor layer plays a crucial role in offshore flexible pipelines, primarily bearing axial tensile loads. However, during installation and operation, it may experience compressive forces, leading to a risk of lateral buckling, which is further intensified by manufacturing deviations in the...
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MDPI AG
2025-03-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/3/580 |
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| author | Yongyu Li Qingzhen Lu Xiufeng Yue Hailong Lu Qianjin Yue Yangcheng Lu |
| author_facet | Yongyu Li Qingzhen Lu Xiufeng Yue Hailong Lu Qianjin Yue Yangcheng Lu |
| author_sort | Yongyu Li |
| collection | DOAJ |
| description | The tensile armor layer plays a crucial role in offshore flexible pipelines, primarily bearing axial tensile loads. However, during installation and operation, it may experience compressive forces, leading to a risk of lateral buckling, which is further intensified by manufacturing deviations in the steel strips. This study introduces a method to quantify these deviations based on the circumferential length change in defect segments in helically wound steel strips. A deviation model is established and analyzed using Abaqus finite element simulations to evaluate the impact of helical angles and deviation severity on the critical lateral buckling load. The results reveal that as the deviation severity increases, the critical buckling load significantly decreases, with reductions of up to 65% for small helical angles. Additionally, the rapid rise in bending moment at the defect location is identified as the primary cause of lateral buckling initiation. |
| format | Article |
| id | doaj-art-da87fd9d10564a83903a9fa2cec43bb7 |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-da87fd9d10564a83903a9fa2cec43bb72025-08-20T02:42:34ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-03-0113358010.3390/jmse13030580A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry DefectsYongyu Li0Qingzhen Lu1Xiufeng Yue2Hailong Lu3Qianjin Yue4Yangcheng Lu5State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, ChinaSchool of Ocean Science and Technology, Dalian University of Technology, No. 2 Dagong Road, Panjin 124221, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, ChinaState Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, No. 2 Linggong Road, Dalian 116023, ChinaSchool of Ocean Science and Technology, Dalian University of Technology, No. 2 Dagong Road, Panjin 124221, ChinaSchool of Ocean Science and Technology, Dalian University of Technology, No. 2 Dagong Road, Panjin 124221, ChinaThe tensile armor layer plays a crucial role in offshore flexible pipelines, primarily bearing axial tensile loads. However, during installation and operation, it may experience compressive forces, leading to a risk of lateral buckling, which is further intensified by manufacturing deviations in the steel strips. This study introduces a method to quantify these deviations based on the circumferential length change in defect segments in helically wound steel strips. A deviation model is established and analyzed using Abaqus finite element simulations to evaluate the impact of helical angles and deviation severity on the critical lateral buckling load. The results reveal that as the deviation severity increases, the critical buckling load significantly decreases, with reductions of up to 65% for small helical angles. Additionally, the rapid rise in bending moment at the defect location is identified as the primary cause of lateral buckling initiation.https://www.mdpi.com/2077-1312/13/3/580tensile armor layerflexible pipelinelateral bucklingmanufacturing deviationfinite element analysiscritical buckling load |
| spellingShingle | Yongyu Li Qingzhen Lu Xiufeng Yue Hailong Lu Qianjin Yue Yangcheng Lu A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects Journal of Marine Science and Engineering tensile armor layer flexible pipeline lateral buckling manufacturing deviation finite element analysis critical buckling load |
| title | A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects |
| title_full | A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects |
| title_fullStr | A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects |
| title_full_unstemmed | A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects |
| title_short | A Finite Element Analysis of Lateral Buckling of Tensile Armor Layers of Flexible Pipes Considering Machining Geometry Defects |
| title_sort | finite element analysis of lateral buckling of tensile armor layers of flexible pipes considering machining geometry defects |
| topic | tensile armor layer flexible pipeline lateral buckling manufacturing deviation finite element analysis critical buckling load |
| url | https://www.mdpi.com/2077-1312/13/3/580 |
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