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Reliability analysis based on hybrid algorithm of M5 model tree and Monte Carlo simulation for corroded pipelines: Case of study X60 Steel grade pipes
- Source :
- Engineering Failure Analysis. 97:793-803
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- In this paper, the failure probability of corroded pipelines made by X60 steel grade is evaluated. For this complex real engineering failure problem, the burst corroded performance function is developed using an M5Tree model based on calibration with real burst test database. In addition statistical analysis of ILI-report data is conducted for best modeling of corrosion defects geometries (i.e. defects length and depth) based on Anderson-Darling statistic where different PDFs (i.e. Normal, Lognormal, Frechet, Gumbel, Weibull) were tested. Moreover, the effect of defects geometries on the failure probability of the case-studies were investigated for various operating regimes. Then the influence of distributions on the reliability analysis were also illustrated. Results indicated that increases in defects depth are strongly reduced the safety levels of this problem, where miss-selection of defects distributions could lead to conservatives results.
- Subjects :
- business.industry
Calibration (statistics)
Monte Carlo method
General Engineering
020101 civil engineering
02 engineering and technology
Structural engineering
Hybrid algorithm
0201 civil engineering
020303 mechanical engineering & transports
0203 mechanical engineering
Gumbel distribution
Log-normal distribution
General Materials Science
business
Reliability (statistics)
Statistic
Mathematics
Weibull distribution
Subjects
Details
- ISSN :
- 13506307
- Volume :
- 97
- Database :
- OpenAIRE
- Journal :
- Engineering Failure Analysis
- Accession number :
- edsair.doi...........a75795845e932b2301e6aa230525f655