Pressurized gas pipelines are subject to harmful effects from both the surrounding environments and the materials passing through them. Reliable assessment procedures, including fracture mechanics analyses, are required to maintain their integrity. Currently, integrity assessments are performed using conventional deterministic approaches, even though there are many uncertainties to hinder rational evaluations. Therefore, in this study, a probabilistic approach was considered for gas pipeline evaluations. The objectives are to estimate the failure probability of corroded pipelines in the gas and oil industries and to propose operating limit conditions for different types of loadings. To achieve these objectives, a probabilistic assessment program was developed using reliability index method and simulation techniques, and applied to estimate the failure probabilities of corroded API-5L-X52/X60 gas pipelines subjected to internal pressure, bending moment, and combined loading. The operating limit conditions as well as prototypal evaluation and sensitivity analysis results showed a promising applicability of the probabilistic integrity assessment program.
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November 2006
Research Papers
Probabilistic Integrity Assessment of Corroded Gas Pipelines
Sang-Min Lee,
Sang-Min Lee
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
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Yoon-Suk Chang,
Yoon-Suk Chang
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
Search for other works by this author on:
Jae-Boong Choi,
Jae-Boong Choi
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
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Young-Jin Kim
Young-Jin Kim
SAFE Research Center, School of Mechanical Engineering,
e-mail: yjkim50@skku.edu
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
Search for other works by this author on:
Sang-Min Lee
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
Yoon-Suk Chang
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
Jae-Boong Choi
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea
Young-Jin Kim
SAFE Research Center, School of Mechanical Engineering,
Sungkyunkwan University
, 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Koreae-mail: yjkim50@skku.edu
J. Pressure Vessel Technol. Nov 2006, 128(4): 547-555 (9 pages)
Published Online: February 20, 2006
Article history
Received:
May 12, 2005
Revised:
February 20, 2006
Citation
Lee, S., Chang, Y., Choi, J., and Kim, Y. (February 20, 2006). "Probabilistic Integrity Assessment of Corroded Gas Pipelines." ASME. J. Pressure Vessel Technol. November 2006; 128(4): 547–555. https://doi.org/10.1115/1.2349566
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