Remaining-Life Prediction and Reliability Assessment of Buried Gas Pipelines under Corrosion and Alternating Loads

First, a methodology was proposed for predicting the remaining life of buried gas pipelines subject to corrosion and cyclic loads. Variation in corrosion-defect depth was considered an exponential function of pipeline elapsed time, and the cumulative damage rate was employed to compute pipeline cyclic damage. Because of the presence of nonlinearity in the formulas, an iterative method was used for calculating remaining life and total damage of pipelines with field data. Next, a limit-state function based on remaining-life mode was adopted for estimating pipeline failure probability, and the associated random variables were represented by normal probabilistic distributions. Then the acceptable failure probability and risk interval were combined for assessing pipeline reliability, which was validated with field data.

• Record URL:
  https://doi.org/10.1061/(ASCE)PS.1949-1204.0000182
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19491190
• Supplemental Notes:
  • © 2014 American Society of Civil Engineers.
• Authors:
  • Weiguo, Zhou
  • Dongjing, Liu
  • Hai, Wang
  • Xinxin, Pan
• Publication Date: 2015-2

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: 05014002
• Serial:
  • Journal of Pipeline Systems Engineering and Practice
  • Volume: 6
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1949-1190
  • EISSN: 1949-1204
  • Serial URL: http://ascelibrary.org/journal/jpsea2

Subject/Index Terms

• TRT Terms: Corrosion; Deterioration; Failure; Gas pipelines; Iterative methods; Reliability; Repeated loads; Service life
• Subject Areas: Maintenance and Preservation; Pipelines; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01534897
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Aug 20 2014 3:37PM