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Core Material Performance on the Propagation Pressure of Sandwich Pipes

[+] Author Affiliations
Marcelo Igor Lourenço, Ilson Paranhos Pasqualino, Tiago da Silva Palermo

COPPE/UFRJ, Rio de Janeiro, RJ, Brazil

Paper No. OMAE2008-57507, pp. 471-480; 10 pages
  • ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 3: Pipeline and Riser Technology; Ocean Space Utilization
  • Estoril, Portugal, June 15–20, 2008
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4820-3 | eISBN: 0-7918-3821-8
  • Copyright © 2008 by ASME


Due to their insulative nature and ability to withstand high hydrostatic pressures, sandwich pipes have been considered feasible for use in ultra deepwater pipelines. As defined here, sandwich pipes consist of an inner and outer metallic pipe with a suitable core material in the annulus. In this paper, a non linear three-dimensional finite element model, previously presented and compared with experiments, is used in an extensive parametric study of the quasi-static propagation of buckles in sandwich pipes. The primary purpose of this study is to investigate the actual contribution of the core material to the propagation pressure. Parameters addresses include bonding condition (no adherence, perfect adherence), metallic pipe thickness, and core material thickness.

Copyright © 2008 by ASME
Topics: Pressure , Pipes



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