Paper Title:
Probabilistic Approach for Reliability Estimation of Corroded Pipelines
  Abstract

Pipelines widely used for the transportation of varying fluids from one place to another should be maintained in good condition to avoid, if possible, the occurrence of corrosion in pipelines to keep its reliability in terms of fracture and damage. The reliability of buried pipelines with corrosion defects is estimated using the failure probability. The FORM (first order reliability method) is utilized to estimate the failure probability of buried pipeline with various formulas for external stress in pipe and three different corrosion models. In this paper, it is recognized that the failure probability increases not only with increasing exposure time, operating pressure and diameter of pipe but also with decreasing wall thickness and yield stress of pipe material in three different corrosion models. And the effects of the scattering of random variables regarding reliability of pipelines on failure probability are investigated, systematically. Furthermore, the target safety level is used to determine the level of safe of corroded pipeline and the effects of varying boundary conditions on target safety level are also estimated.

  Info
Periodical
Key Engineering Materials (Volumes 306-308)
Edited by
Ichsan Setya Putra and Djoko Suharto
Pages
411-416
DOI
10.4028/www.scientific.net/KEM.306-308.411
Citation
O. S. Lee, D. H. Kim, N. H. Myoung, S. W. Hwang, "Probabilistic Approach for Reliability Estimation of Corroded Pipelines ", Key Engineering Materials, Vols. 306-308, pp. 411-416, 2006
Online since
March 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ya Li Ma, Ai Lin Zhang
Abstract:Probability distribution law of corrosion initiation time of steel in concrete under chloride environment is discussed. Based on the Fick’s...
5632
Authors: Ya Li Ma, Ai Lin Zhang
Abstract:Probability analysis on the durable life of concrete structure under chloride environment is little known. Using the probability method based...
410
Authors: Chun Bi Xu, Jing Cheng Liu, Li Xu, Xue Mei Kuang, Jian Hua Wang
Chapter 5: Materials in Energy and Environment (2)
Abstract:Finding the right abandoned well (or new drilling ) leakage layer reinjection into the ground is the most effective, the most mature, the...
2799
Authors: Wan Tao Ding, Jin Hui Liu, Shu Cai Li
Chapter 10: Mechanics of Materials
Abstract:Reinforcement corrosion is one of the main causes for the deterioration of reinforcement concrete structure. And it seriously affected...
1315