Mechanical Testing Of High-Performance Composite Tubes For Tlp Production Risers

Sparks, C.P.; Odru, P.; Bono, H.; Metivaud, G.

doi:10.4043/5797-ms

Cited by 32 publications

(22 citation statements)

References 1 publication

(1 reference statement)

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“…In the 1980s, the Institut Francais du Petrole and Aerospatiale of France undertook a project to evaluate composite offshore tubular structure. [16] Their design consisted of orthogonal reinforcements with glass fibre-reinforced circumferential layers and carbon fibre-reinforced longitudinal layers and a Buna inner liner. Static burst and tension tests, fatigue and creep tests were conducted and proved that this composite riser tube was capable of carrying the expected mechanical loads.…”

Section: Introductionmentioning

confidence: 99%

Tailored local design of deep sea FRP composite risers

Wang

Shankar

Морозов

2014

Advanced Composite Materials

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The use of fibre reinforced polymer (FRP) composite materials in offshore engineering for deep sea riser systems has drawn considerable interest due to the potential weight savings and improvement in durability that can be achieved. The design of FRP composite risers consists of two stages: (1) preliminary local design based on critical local load cases (LCs) and (2) global analysis of the full length composite riser under global loads including platform motion, hydrostatic pressure, gravity, buoyancy, wave and current loads to determine and assess critical locations. The preliminary local design stage is necessary to obtain a first estimate of the laminate configuration -fibre orientations and layer thicknesses of the tube wall, since the deformations and hence the forces and bending moments due to the global loads, depend on the geometric configuration. This paper describes the methodology, LCs, analysis procedure and results of the first stage, the local design of the composite riser. The local design is conducted using five different LCs as prescribed by the standards. In this study, geometric configurations of eight different composite body and liner combinations were optimised to provide minimum structural weight. Previous composite riser designs have mainly focused on axial and hoop reinforcements; in the present study, fibre reinforcements at other orientations are included. The highlight of the current study is that it shows that the use of off angle fibre orientations in addition to axial and hoop reinforcements offer substantial weight savings.

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Section: Introductionmentioning

confidence: 99%

Tailored local design of deep sea FRP composite risers

Wang

Shankar

Морозов

2014

Advanced Composite Materials

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“…The initial attempt to fabricate and test composite risers was accomplished by Institut Francais du Petrole (IFP) and Aerospatiale of France [3] in the 1980s. In the 1990s, tests of mechanical capacities of the composite riser tube were performed by National Institute of Standards and Technology (NIST) and Advanced Technology Programs (ATPs) [4].…”

Section: Introductionmentioning

confidence: 99%

CFD Simulation of Vortex Induced Vibration for FRP Composite Riser with Different Modeling Methods

et al. 2018

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Featured Application: Three different risers, i.e., conventional steel riser, composite riser with orthogonal reinforcements and tailored composite riser, are compared for their VIV characteristics. The effects of 2D and 3D models and fluid-structure interaction (FSI) have been considered and two different modeling methods are established to simulate the FRP composite risers. This paper will serve to further understand the dynamic characteristics of the FRP composite risers and improve the utilization of the FRP composite risers in real projects. We believe present paper would appeal to the researchers working on the design and analysis of composite structures and their optimizations.Abstract: Steel risers are widely used in offshore oil and gas industry. However, the production capacity and depths are limited due to their extreme weight and poor fatigue and corrosion resistance. Nowadays, it is confirmed that fiber reinforced polymer (FRP) composite risers have apparent advantages over steel risers. However, the study of vortex induced vibration (VIV) for composite risers is rarely involved. Three different risers (one steel riser and two composite risers) were compared for their VIV characteristics. The effects of 2D and 3D models and fluid-structure interaction (FSI) were considered. The models of composite risers are established by effective modulus method (EMM) and layered-structure method (LSM). It is found that 2D model are only suitable for ideal condition, while, for real situation, 3D model with FSI has to be considered. The results show that the displacements of the FRP composite risers are significantly larger than those of the steel riser, while the stresses are reversed. In addition, the distributions of the displacements and stresses depend on the geometries, material properties, top-tension force, constraints, etc. In addition, it is obvious that EMM are suitable to study the global working condition while LSM can be utilized to obtain the results in every single composite layer.

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“…Unbonded flexible risers often comprise an inner steel carcass layer, to prevent buckling and collapse of the riser; steel pressure armor layers, to prevent corrosion from inner fluids; anti-wear homogeneous layers; helically wound tensile armors, to provide axial and bending stiffnesses for the riser, and an outer polymeric layer for external protection (American Petroleum Institute, 2008). One of the first examples of composite risers was for a tension leg platform (Sparks, 1986;Sparks et al, 1998). The risers had an external diameter of about 230 mm, a joint length of 15 m and were made of hybrid ±20 0 carbon and 90 0 glass composites and can sustain a fatigue life 3 times longer than a steel riser.…”

Section: Introductionmentioning

confidence: 99%

A review on design, manufacture and mechanics of composite risers

et al. 2016

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Exploration of deeper oceans for oil and gas requires increasingly lightweight solutions. A key enabler in this aspect is the use of fiber-reinforced composite materials to replace metals in risers. However, design synthesis and analyses of composite risers are more challenging than for conventional metals due to the complex behavior and damage mechanisms which composite materials exhibit. Composite risers are predicted to be a high-impact technology that will be mainstream in the medium term but there is still relatively little literature pertaining directly to the behavior of these materials under the complex loading scenarios arising from their use in deep water structures. Therefore there is a need to perform a review and assessment of the available technologies and methodologies in the literature to gain a good understanding of their predictive capabilities, efficiency and drawbacks. This article provides a comprehensive review of published research on manufacture, experimental investigations and numerical analyses of composite risers in deepwater conditions determining the gaps and key challenges for the future to increase their application.

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Mechanical Testing Of High-Performance Composite Tubes For Tlp Production Risers

Cited by 32 publications

References 1 publication

Tailored local design of deep sea FRP composite risers

Tailored local design of deep sea FRP composite risers

CFD Simulation of Vortex Induced Vibration for FRP Composite Riser with Different Modeling Methods

A review on design, manufacture and mechanics of composite risers

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