Flexible pipes are largely used by oil and gas companies all over the world to exploit oil and gas reserves located into the sea. These pipes are composed by different layers, each one with a specific function. The environmental loads can induce different types of failure modes in a flexible pipe. One important failure mode is associated with the fatigue damage in the tension armours. Fatigue analysis depends on various parameters that are uncertain. A reliability-based procedure to take into account these uncertainties in the fatigue analysis of flexible pipes has been recently proposed [1]. In this methodology the S-N curves have been modeled by a one-slope model. The present work expands this methodology in order to consider S-N bi-linear models.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4489-2
PROCEEDINGS PAPER
Methodology for Fatigue Analysis in Flexible Pipes Based on Structural Reliability Considering S-N Bi-Linear Curve
Fernando dos Santos Loureiro Filho,
Fernando dos Santos Loureiro Filho
Petrobras Transporte, Rio de Janeiro, RJ, Brazil
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Edison Castro Prates de Lima,
Edison Castro Prates de Lima
COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Luís Volnei Sudati Sagrilo,
Luís Volnei Sudati Sagrilo
COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Carlos Alberto Duarte de Lemos
Carlos Alberto Duarte de Lemos
CENPES/Petrobras, Rio de Janeiro, RJ, Brazil
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Fernando dos Santos Loureiro Filho
Petrobras Transporte, Rio de Janeiro, RJ, Brazil
Edison Castro Prates de Lima
COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
Luís Volnei Sudati Sagrilo
COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
Carlos Alberto Duarte de Lemos
CENPES/Petrobras, Rio de Janeiro, RJ, Brazil
Paper No:
OMAE2012-83585, pp. 329-336; 8 pages
Published Online:
August 23, 2013
Citation
dos Santos Loureiro Filho, F, de Lima, ECP, Sudati Sagrilo, LV, & de Lemos, CAD. "Methodology for Fatigue Analysis in Flexible Pipes Based on Structural Reliability Considering S-N Bi-Linear Curve." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 329-336. ASME. https://doi.org/10.1115/OMAE2012-83585
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