The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea
Flexible risers have proven to be a popular choice for deepwater exploration due to their ability to withstand functional and environmental stress while maintaining system integrity. In the challenging arctic conditions, lightweight hybrid composite flexible risers are likely to be employed to mitig...
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2023
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Online Access: | https://doi.org/10.3390/jcs7060212 |
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ftmdpi:oai:mdpi.com:/2504-477X/7/6/212/ 2023-08-20T04:03:52+02:00 The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea Dimitrii Korotygin Sathish. K. Nammi Ketan Pancholi 2023-05-23 application/pdf https://doi.org/10.3390/jcs7060212 EN eng Multidisciplinary Digital Publishing Institute Composites Modelling and Characterization https://dx.doi.org/10.3390/jcs7060212 https://creativecommons.org/licenses/by/4.0/ Journal of Composites Science; Volume 7; Issue 6; Pages: 212 flexible risers Carbon Fibre Reinforced Polymer (CFRP) OrcaFlex Floating Production Unit (FPU) Text 2023 ftmdpi https://doi.org/10.3390/jcs7060212 2023-08-01T10:11:04Z Flexible risers have proven to be a popular choice for deepwater exploration due to their ability to withstand functional and environmental stress while maintaining system integrity. In the challenging arctic conditions, lightweight hybrid composite flexible risers are likely to be employed to mitigate the increase in effective tension. This study investigates the strength and stability performance of production hybrid composite flexible risers with composite pressure armour in the harsh environmental conditions of the Arctic seas. At a water depth of 340 m, the flexible riser was analysed in various global configurations to evaluate the static, dynamic, and lamina-scale performance of its carbon fibre-reinforced thermoplastic polymer composite layer. The drifting ice in the region generated additional load on the riser system, and the effects of this ice on the riser design and its dynamic and lamina-level performances were also analysed. The results indicate that the current riser design incorporating the composite layer is insufficient to ensure system integrity without mitigating the effects of ice loading. The carbon fibre direction in each lamina must be optimised for excess axial stress emanating from the combined action of hoop, axial, and bending stresses. Finally, recommendations on how to improve the life of the lightweight hybrid composite riser in arctic conditions are provided. Text Arctic MDPI Open Access Publishing Arctic Journal of Composites Science 7 6 212 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
flexible risers Carbon Fibre Reinforced Polymer (CFRP) OrcaFlex Floating Production Unit (FPU) |
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flexible risers Carbon Fibre Reinforced Polymer (CFRP) OrcaFlex Floating Production Unit (FPU) Dimitrii Korotygin Sathish. K. Nammi Ketan Pancholi The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
topic_facet |
flexible risers Carbon Fibre Reinforced Polymer (CFRP) OrcaFlex Floating Production Unit (FPU) |
description |
Flexible risers have proven to be a popular choice for deepwater exploration due to their ability to withstand functional and environmental stress while maintaining system integrity. In the challenging arctic conditions, lightweight hybrid composite flexible risers are likely to be employed to mitigate the increase in effective tension. This study investigates the strength and stability performance of production hybrid composite flexible risers with composite pressure armour in the harsh environmental conditions of the Arctic seas. At a water depth of 340 m, the flexible riser was analysed in various global configurations to evaluate the static, dynamic, and lamina-scale performance of its carbon fibre-reinforced thermoplastic polymer composite layer. The drifting ice in the region generated additional load on the riser system, and the effects of this ice on the riser design and its dynamic and lamina-level performances were also analysed. The results indicate that the current riser design incorporating the composite layer is insufficient to ensure system integrity without mitigating the effects of ice loading. The carbon fibre direction in each lamina must be optimised for excess axial stress emanating from the combined action of hoop, axial, and bending stresses. Finally, recommendations on how to improve the life of the lightweight hybrid composite riser in arctic conditions are provided. |
format |
Text |
author |
Dimitrii Korotygin Sathish. K. Nammi Ketan Pancholi |
author_facet |
Dimitrii Korotygin Sathish. K. Nammi Ketan Pancholi |
author_sort |
Dimitrii Korotygin |
title |
The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
title_short |
The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
title_full |
The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
title_fullStr |
The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
title_full_unstemmed |
The Effect of Ice Floe on the Strength, Stability, and Fatigue of Hybrid Flexible Risers in the Arctic Sea |
title_sort |
effect of ice floe on the strength, stability, and fatigue of hybrid flexible risers in the arctic sea |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/jcs7060212 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Composites Science; Volume 7; Issue 6; Pages: 212 |
op_relation |
Composites Modelling and Characterization https://dx.doi.org/10.3390/jcs7060212 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jcs7060212 |
container_title |
Journal of Composites Science |
container_volume |
7 |
container_issue |
6 |
container_start_page |
212 |
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1774714302111940608 |