Tailoring the Local Design of Deep Water Composite Risers to Minimise Structural Weight

Journal of Composites Science

Idris Ahmed Ja’e¹  Chiemela Victor Amaechi²  Nathaniel Gillet³  Chunguang Wang⁴ 

[1] Department of Civil Engineering, Universiti Teknologi PETRONAS, Seri Iskander 32610, Malaysia;Department of Engineering, Lancaster University, Bailrigg, Lancaster LA1 4YR, UK;Department of Production Engineering, Trident Energy, Wilton Road, London SW1V 1JZ, UK;School of Civil and Architectural Engineering, Shandong University of Technology, Zibo 255000, China;

关键词: composite riser;    tailored local design;    finite element model (FEM);    marine pipeline risers;    composite marine structures;    numerical modelling;   

DOI  :  10.3390/jcs6040103

来源: DOAJ

【 摘 要 】

Following the rising technological advancements on composite marine structures, there is a corresponding surge in the demand for its deployment as ocean engineering applications. The push for exploration activities in deep waters necessitates the need for composite marine structures to reduce structural payload and lessen weights/loads on platform decks. This gain is achieved by its high strength–stiffness modulus and light-in-weight attributes, enabling easier marine/offshore operations. Thus, the development of composite marine risers considers critical composite characteristics to optimize marine risers’ design. Hence, an in-depth study on composite production risers (CPR) is quite pertinent in applying composite materials to deep water applications. Two riser sections of 3 m and 5 m were investigated under a 2030 m water depth environment to minimise structural weight. ANSYS Composites ACP was utilized for the CPR’s finite element model (FEM) under different load conditions. The choice of the material, the fibre orientation, and the lay-up configurations utilised in the modelling technique have been reported. In addition, the behaviour of the composite risers’ layers under four loadings has been investigated under marine conditions. Recommendations were made for the composite tubular structure. Results on stresses and weight savings were obtained from different composite riser configurations. The recommended composite riser design that showed the best performance is AS4/PEEK utilising PEEK liner, however more work is suggested using global design loadings on the CPR.

【 授权许可】

Unknown