Time-Dependent Reliability Analysis of Composite Repaired Pipes Subjected to Multiple Failure Modes

While metallic pipelines experience consistent deterioration due to aging, composite repair systems have become a method of interest over the recent decades. This study aims to deal with multiple failure modes of composite repaired pipes using probabilistic analysis. The failure modes—including burs...

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Bibliographic Details
Published in:Journal of failure analysis and prevention 2021-12, Vol.21 (6), p.2234-2246
Main Authors: Savari, Ardeshir, Rashed, Gholamreza, Eskandari, Hadi
Format: Article
Language:English
Subjects:
Aging (metallurgy)
Bending moments
Bonding strength
Bursting
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Corrosion and Coatings
Debonding
Failure analysis
Failure modes
Internal pressure
Materials Science
Parameter sensitivity
Pipelines
Pipes
Probabilistic analysis
Quality Control
Reliability
Reliability analysis
Reliability engineering
Repair
Safety and Risk
Sensitivity analysis
Solid Mechanics
Statistical analysis
Technical Article > -Peer-Reviewed
Tribology
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Summary:While metallic pipelines experience consistent deterioration due to aging, composite repair systems have become a method of interest over the recent decades. This study aims to deal with multiple failure modes of composite repaired pipes using probabilistic analysis. The failure modes—including bursting, adhesive debonding, and fracture—are all involved such that correlations among modes are considered to obtain the final system failure probability. The first passage probability method is applied to calculate the probability of failure in each failure mode. Additionally, the degradation process of the composite material is quantified by the Arrhenius relationship. It was found that adhesive debonding is the most influential failure mode, followed by bursting, then fracture due to internal pressure, and finally fracture induced by bending moment. The prominent input parameters were evaluated by carrying out a sensitivity analysis based on the FOSM reliability method. The results confirmed that composite repair parameters, including elasticity modulus, bonding strength, and thickness, noticeably impact the failure probability. The outcomes of this paper can help maintenance engineers better assess the reliability of composite repaired pipelines.
ISSN:1547-7029
1728-5674
1864-1245
DOI:10.1007/s11668-021-01273-w