Probabilistic residual strength assessment of corroded pipelines
- Martec Ltd., Halifax, Nova Scotia (Canada). Computational Mechanics Group
Corrosion is one of the most important damage mechanisms for pipelines in service and existing engineering standards for evaluating the integrity of corroded pipelines such as the ASME B31G criterion are based on the deterministic approach. In this study, a probabilistic model for the assessment of the reliability of corroded pipelines is presented. The merit of the probabilistic approach to residual strength assessment is demonstrated via the application of a probabilistic version of the ASME B31G criterion which is widely used in the pipeline industry. In particular, probabilistic sensitivity studies are used to identify the most important engineering parameters in selected engineering models for corroded pipes. It is shown that these studies give useful insight regarding the modeling aspects and engineering parameters of the empirical/semi-empirical models that require detailed or accurate determination in practical engineering applications.
- OSTI ID:
- 264148
- Report Number(s):
- CONF-950604--; ISBN 1-880653-20-6
- Country of Publication:
- United States
- Language:
- English
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