Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor

As oil and gas exploration moves to deeper areas of the ocean, the weight of flexible risers becomes an important factor in design. To reduce the weight of flexible risers and ease the load on the offshore platform, this paper present a cylindrical tensile armor layer made of composite materials tha...

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Main Authors: Haichen Zhang, Lili Tong, Michael Anim Addo
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Journal of Composites Science
Subjects:
Online Access:https://www.mdpi.com/2504-477X/5/1/3
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author Haichen Zhang
Lili Tong
Michael Anim Addo
author_facet Haichen Zhang
Lili Tong
Michael Anim Addo
author_sort Haichen Zhang
collection DOAJ
description As oil and gas exploration moves to deeper areas of the ocean, the weight of flexible risers becomes an important factor in design. To reduce the weight of flexible risers and ease the load on the offshore platform, this paper present a cylindrical tensile armor layer made of composite materials that can replace the helical tensile armor layer made of carbon steel. The ACP (pre) of the workbench is used to model the composite tension armor. Firstly, the composite lamination of the tensile armor is discussed. Then, considering the progressive damage theory of composite material, the whole flexible riser is analyzed mechanically and compared with the original flexible riser. The weight of the flexible riser decreases by 9.73 kg/m, and the axial tensile stiffness decreases by 17.1%, while the axial tensile strength increases by 130%. At the same time, the flexible riser can meet the design strength requirements of torsion and bending.
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spelling doaj.art-58316f60e4d242a1991b37cac078c54b2023-11-21T02:33:33ZengMDPI AGJournal of Composites Science2504-477X2020-12-0151310.3390/jcs5010003Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension ArmorHaichen Zhang0Lili Tong1Michael Anim Addo2College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaAs oil and gas exploration moves to deeper areas of the ocean, the weight of flexible risers becomes an important factor in design. To reduce the weight of flexible risers and ease the load on the offshore platform, this paper present a cylindrical tensile armor layer made of composite materials that can replace the helical tensile armor layer made of carbon steel. The ACP (pre) of the workbench is used to model the composite tension armor. Firstly, the composite lamination of the tensile armor is discussed. Then, considering the progressive damage theory of composite material, the whole flexible riser is analyzed mechanically and compared with the original flexible riser. The weight of the flexible riser decreases by 9.73 kg/m, and the axial tensile stiffness decreases by 17.1%, while the axial tensile strength increases by 130%. At the same time, the flexible riser can meet the design strength requirements of torsion and bending.https://www.mdpi.com/2504-477X/5/1/3flexible risertensile armorcarbon fibercomposite tensile armor
spellingShingle Haichen Zhang
Lili Tong
Michael Anim Addo
Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
Journal of Composites Science
flexible riser
tensile armor
carbon fiber
composite tensile armor
title Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
title_full Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
title_fullStr Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
title_full_unstemmed Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
title_short Mechanical Analysis of Flexible Riser with Carbon Fiber Composite Tension Armor
title_sort mechanical analysis of flexible riser with carbon fiber composite tension armor
topic flexible riser
tensile armor
carbon fiber
composite tensile armor
url https://www.mdpi.com/2504-477X/5/1/3
work_keys_str_mv AT haichenzhang mechanicalanalysisofflexibleriserwithcarbonfibercompositetensionarmor
AT lilitong mechanicalanalysisofflexibleriserwithcarbonfibercompositetensionarmor
AT michaelanimaddo mechanicalanalysisofflexibleriserwithcarbonfibercompositetensionarmor