Abstract
Thermoplastic composite pipe (TCP) is an ideal candidate to replace traditional steel pipes in deepwater applications where high specific strengths and moduli and corrosion resistance are desirable. TCP consists of three layers: an inner thermoplastic liner; structural fibre-reinforced multi-ply laminate; and an outer thermoplastic liner. During deepwater operation the pipe is subjected to thermal gradient, arising from the mismatch between internal fluid and external ocean temperatures, in combination with mechanical loads. In the present work, a 3D finite element (FE) model is used to investigate structural integrity of TCP under combined pressures, tension and thermal gradient by considering yielding of isotropic liners and failure of the laminate at ply-level according to existing stress-based criteria. Different orientations of reinforcing fibres are investigated.
Original language | English |
---|---|
Pages (from-to) | 850-863 |
Number of pages | 14 |
Journal | Procedia Structural Integrity |
Volume | 28 |
Early online date | 1 Dec 2020 |
DOIs | |
Publication status | Published - 2020 |
Event | 1st Virtual European Conference on Fracture, VECF 2020 - Virtual, Online Duration: 29 Jun 2020 → 1 Jul 2020 |
Bibliographical note
Publisher Copyright:© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0)
Keywords
- Offshore riser
- Thermomechanical analysis
- Thermoplastic composite pipe