Response surface based reliability analysis of critical lateral buckling force of subsea pipelines

Vosooghi, Navid; Sriramula, Srinivas; Ivanović, Ana

doi:10.1016/j.marstruc.2022.103246

Cited by 11 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The design, construction, operation and maintenance of pipelines is regulated through pipeline integrity management approaches [3][4][5][6]. Through well-established management systems and operational procedures, such approaches vastly cover the issues related to pipeline defect identification, assessments of defect growth based on inline inspection and theoretical methods, and developing risk-based maintenance and repair strategies [1,2].…”

Section: Introductionmentioning

confidence: 99%

Uncertainty in the Estimation of Partial Safety Factors for Different Steel-Grade Corroded Pipelines

Bhardwaj

Teixeira

Soares

2023

JMSE

View full text Add to dashboard Cite

This paper assesses the uncertainty of the partial safety factors for the design of corroded pipelines against burst failure due to the variability associated with the strength model selection. First, 10 calibrated burst pressure prediction models for corroded pipelines are adopted and duly categorised under low-, medium- and high-grade steel classes. The probabilistic characteristics of the pipe burst strength are studied using Monte Carlo simulation for the selected models. Model uncertainty factors are used to correct the burst pressure predictions by the design equations. Model strength factors are derived for models in each category that will provide coherent reliability. The first-order reliability method is employed to estimate the partial safety factors and their uncertainty as a function of operational time. Finally, the influence of the corrosion growth model on the evaluation of partial safety factors is assessed. The results obtained in this study can provide vital guidance regarding the design and maintenance of different steel-grade pipelines.

show abstract

Section: Introductionmentioning

confidence: 99%