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A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers. / Li, Xiao; Jiang, Xiaoli; Hopman, Hans.

Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems. New York, NY, USA : ASME, 2018. OMAE2018-78266.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Li, X, Jiang, X & Hopman, H 2018, A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers. in Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems., OMAE2018-78266, ASME, New York, NY, USA, ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018, Madrid, Spain, 17/06/18. https://doi.org/10.1115/OMAE2018-78266

APA

Li, X., Jiang, X., & Hopman, H. (2018). A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers. In Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems [OMAE2018-78266] New York, NY, USA: ASME. https://doi.org/10.1115/OMAE2018-78266

Vancouver

Li X, Jiang X, Hopman H. A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers. In Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems. New York, NY, USA: ASME. 2018. OMAE2018-78266 https://doi.org/10.1115/OMAE2018-78266

Author

Li, Xiao ; Jiang, Xiaoli ; Hopman, Hans. / A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers. Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems. New York, NY, USA : ASME, 2018.

BibTeX

@inproceedings{49da9c351b964fce9acc10905299a71b,
title = "A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers",
abstract = "Flexible risers are one kind of flexible pipes that transport fluid between subsea facilities and topside structures. This pipelike structure consists of multiple layers and its innermost carcass layer is designed for external hydrostatic pressure resistance. For the flexible risers used in ultra-deep water fields, the critical collapse pressure of the carcass layers is one of the dominant factors in their safety design. However, the complexity of the interlocked carcass design introduces significant difficulties and constraints into the engineering analysis. To facilitate the anti-collapse analysis, equivalent layer methods are demanded to help construct an equivalent pipe that performs a similar collapse behavior of the carcass. This paper proposes a strain energy based equivalent layer method which trying to bridge the equivalence between those two structures by considering equivalent geometric and material properties for the equivalent layer. Those properties are determined through strain energy equivalence and membrane stiffness equivalence. The strain energy of the carcass is obtained through numerical models and is then used in a derived equation set to calculate the equivalent properties for the equivalent layer. After all the equivalent properties have been determined, an equivalent layer FE model is built and used to predict the critical pressure of the carcass. The prediction result is compared to that of the full 3D carcass model as well as the equivalent models that built based on other existing equivalent methods, which shows that the proposed equivalent layer method gives a better performance on predicting the critical pressure of the carcass.",
keywords = "Carcass, Collapse failure, Equivalent layer, Flexible riser, Strain energy",
author = "Xiao Li and Xiaoli Jiang and Hans Hopman",
year = "2018",
doi = "10.1115/OMAE2018-78266",
language = "English",
booktitle = "Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering",
publisher = "ASME",
address = "United States",

}

RIS

TY - GEN

T1 - A strain energy-based equivalent layer method for the prediction of critical collapse pressure of flexible risers

AU - Li, Xiao

AU - Jiang, Xiaoli

AU - Hopman, Hans

PY - 2018

Y1 - 2018

N2 - Flexible risers are one kind of flexible pipes that transport fluid between subsea facilities and topside structures. This pipelike structure consists of multiple layers and its innermost carcass layer is designed for external hydrostatic pressure resistance. For the flexible risers used in ultra-deep water fields, the critical collapse pressure of the carcass layers is one of the dominant factors in their safety design. However, the complexity of the interlocked carcass design introduces significant difficulties and constraints into the engineering analysis. To facilitate the anti-collapse analysis, equivalent layer methods are demanded to help construct an equivalent pipe that performs a similar collapse behavior of the carcass. This paper proposes a strain energy based equivalent layer method which trying to bridge the equivalence between those two structures by considering equivalent geometric and material properties for the equivalent layer. Those properties are determined through strain energy equivalence and membrane stiffness equivalence. The strain energy of the carcass is obtained through numerical models and is then used in a derived equation set to calculate the equivalent properties for the equivalent layer. After all the equivalent properties have been determined, an equivalent layer FE model is built and used to predict the critical pressure of the carcass. The prediction result is compared to that of the full 3D carcass model as well as the equivalent models that built based on other existing equivalent methods, which shows that the proposed equivalent layer method gives a better performance on predicting the critical pressure of the carcass.

AB - Flexible risers are one kind of flexible pipes that transport fluid between subsea facilities and topside structures. This pipelike structure consists of multiple layers and its innermost carcass layer is designed for external hydrostatic pressure resistance. For the flexible risers used in ultra-deep water fields, the critical collapse pressure of the carcass layers is one of the dominant factors in their safety design. However, the complexity of the interlocked carcass design introduces significant difficulties and constraints into the engineering analysis. To facilitate the anti-collapse analysis, equivalent layer methods are demanded to help construct an equivalent pipe that performs a similar collapse behavior of the carcass. This paper proposes a strain energy based equivalent layer method which trying to bridge the equivalence between those two structures by considering equivalent geometric and material properties for the equivalent layer. Those properties are determined through strain energy equivalence and membrane stiffness equivalence. The strain energy of the carcass is obtained through numerical models and is then used in a derived equation set to calculate the equivalent properties for the equivalent layer. After all the equivalent properties have been determined, an equivalent layer FE model is built and used to predict the critical pressure of the carcass. The prediction result is compared to that of the full 3D carcass model as well as the equivalent models that built based on other existing equivalent methods, which shows that the proposed equivalent layer method gives a better performance on predicting the critical pressure of the carcass.

KW - Carcass

KW - Collapse failure

KW - Equivalent layer

KW - Flexible riser

KW - Strain energy

UR - http://www.scopus.com/inward/record.url?scp=85055524444&partnerID=8YFLogxK

U2 - 10.1115/OMAE2018-78266

DO - 10.1115/OMAE2018-78266

M3 - Conference contribution

BT - Proceedings ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering

PB - ASME

CY - New York, NY, USA

ER -

ID: 50240795