You need JavaScript to view this

Effect of yield to tensile (Y/T) ratio on the structural integrity of offshore pipeline: advanced engineering assessment using limit state design approach

Abstract

Nowadays specifications require strict Yield to Tensile ratio limitation, nevertheless a fully accepted engineering assessment of its influence on pipeline integrity is still lacking. Probabilistic analysis based on structural reliability approach (Limit State Design) aimed at quantifying the Y/T ratio influence on failure probabilities of offshore pipelines was made. In particular, Tenaris seamless pipe data were used as input for the probabilistic failure analysis. The LSD approach has been applied to two actual deep water design cases that have been on purpose selected, and the most relevant failure modes have been considered. Main result of the work is that the quantitative effect of the Y/T ratio on failure probabilities of a deep water pipeline resulted not so big as expected; it has a minor effect, especially when failure modes are governed by Y only. (author)
Authors:
Malatesta, G; Mannucci, G; Demofonti, G; [1]  Cumino, G; [2]  Izquierdo, A; Tivelli, M; [3]  Quintanilla, H [4] 
  1. Centro Sviluppo Materiali S.p.A., Rome (Italy)
  2. TenarisDalmine (Italy)
  3. Tenaris Group (Mexico)
  4. TENARIS Group (Mexico). TAMSA
Publication Date:
Jul 01, 2005
Product Type:
Conference
Report Number:
ETDE-BR-20880712
Resource Relation:
Conference: Rio pipeline 2005 conference and exposition, Rio de Janeiro, RJ (Brazil), 17-19 Oct 2005; Other Information: 10 refs., 3 figs., 10 tabs. Also available from the Library of the Brazilian Nuclear Energy Commission, Rio de Janeiro, in electronic form. Codes: IBP1374{sub 0}5; BR0701618.pdf
Subject:
42 ENGINEERING; PIPELINES; TENSILE PROPERTIES; YIELD STRENGTH; OFFSHORE OPERATIONS; FAILURES; PROBABILISTIC ESTIMATION; RELIABILITY
OSTI ID:
20880712
Research Organizations:
Instituto Brasileiro de Petroleo e Gas (IBP), Rio de Janeiro, RJ (Brazil)
Country of Origin:
Brazil
Language:
English
Other Identifying Numbers:
TRN: BR0701618
Availability:
Commercial reproduction prohibited; OSTI as DE20880712
Submitting Site:
BR
Size:
[8] pages
Announcement Date:
Jun 15, 2007

Citation Formats

Malatesta, G, Mannucci, G, Demofonti, G, Cumino, G, Izquierdo, A, Tivelli, M, and Quintanilla, H. Effect of yield to tensile (Y/T) ratio on the structural integrity of offshore pipeline: advanced engineering assessment using limit state design approach. Brazil: N. p., 2005. Web.
Malatesta, G, Mannucci, G, Demofonti, G, Cumino, G, Izquierdo, A, Tivelli, M, & Quintanilla, H. Effect of yield to tensile (Y/T) ratio on the structural integrity of offshore pipeline: advanced engineering assessment using limit state design approach. Brazil.
Malatesta, G, Mannucci, G, Demofonti, G, Cumino, G, Izquierdo, A, Tivelli, M, and Quintanilla, H. 2005. "Effect of yield to tensile (Y/T) ratio on the structural integrity of offshore pipeline: advanced engineering assessment using limit state design approach." Brazil.
@misc{etde_20880712,
title = {Effect of yield to tensile (Y/T) ratio on the structural integrity of offshore pipeline: advanced engineering assessment using limit state design approach}
author = {Malatesta, G, Mannucci, G, Demofonti, G, Cumino, G, Izquierdo, A, Tivelli, M, and Quintanilla, H}
abstractNote = {Nowadays specifications require strict Yield to Tensile ratio limitation, nevertheless a fully accepted engineering assessment of its influence on pipeline integrity is still lacking. Probabilistic analysis based on structural reliability approach (Limit State Design) aimed at quantifying the Y/T ratio influence on failure probabilities of offshore pipelines was made. In particular, Tenaris seamless pipe data were used as input for the probabilistic failure analysis. The LSD approach has been applied to two actual deep water design cases that have been on purpose selected, and the most relevant failure modes have been considered. Main result of the work is that the quantitative effect of the Y/T ratio on failure probabilities of a deep water pipeline resulted not so big as expected; it has a minor effect, especially when failure modes are governed by Y only. (author)}
place = {Brazil}
year = {2005}
month = {Jul}
}