Effects of thermal gradient on failure of a thermoplastic composite pipe (TCP) riser leg

James C. Hastie (Corresponding Author), Igor Guz, Maria Kashtalyan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Thermoplastic composite pipe (TCP), consisting of a fibre-reinforced thermoplastic laminate fully bonded between homogeneous thermoplastic liners, is an ideal candidate to replace traditional steel riser pipes in deepwater where high specific strengths and moduli and corrosion resistance are advantageous. During operation, risers are subjected to combined mechanical and thermal loads. In the present paper, a 3D finite element (FE) model is developed to analyse stress state in a section of TCP under combined pressure, axial tension and thermal gradient, illustrative of a single-leg hybrid riser (SLHR) application. From the obtained stresses, through-thickness failure coefficient is evaluated based on appropriate failure criteria. The effects of increasing the internal-to-external thermal gradient are investigated considering temperature dependent material properties. The influence of varying the thickness of the isotropic liners with respect to the laminate is examined.
Original languageEnglish
Pages (from-to)90-99
Number of pages11
JournalInternational Journal of Pressure Vessels and Piping
Volume172
Early online date22 Mar 2019
DOIs
Publication statusPublished - May 2019

Fingerprint

Thermal gradients
Thermoplastics
Pipe
Composite materials
Laminates
Steel
Thermal load
Corrosion resistance
Materials properties
Fibers
Temperature

Keywords

  • Thermoplastic composite pipe
  • Composite riser
  • Thermal gradient

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Science(all)

Cite this

Effects of thermal gradient on failure of a thermoplastic composite pipe (TCP) riser leg. / Hastie, James C. (Corresponding Author); Guz, Igor; Kashtalyan, Maria.

In: International Journal of Pressure Vessels and Piping, Vol. 172, 05.2019, p. 90-99.

Research output: Contribution to journalArticle

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