Reliability assessments and remaining life of pipelines subject to combined loadings using imprecise probabilities

verfasst von

D.A. Opeyemi, E. Patelli, M. Beer, S. A. Timashev

Abstract

Imprecise probability approach for the reliability analysis of above ground pipelines with surface corrosion defects, subject to combined loadings is presented. The construction of the permissible region in the load space for above ground corroded pipeline subject to combined loadings is proposed. The dead load of the pipeline (i.e. summation of weights of the pipe, insulation and fluid), transported fluid operating pressure, and extra stresses due to development of defects are considered as variables. While the wind loads which depends on climate change is considered as very uncertain with imprecise values. A non-linear, power law corrosion model is used to represent the loss of pipe wall thickness with time. The permissible region is constructed according to the limit state which is reached when the equivalent stresses in pipe wall reach the yield stress of pipe material. Results obtained for typical pipelines are presented.

Externe Organisation(en)

The University of Liverpool
Russian Academy of Sciences (RAS)

Typ

Aufsatz in Konferenzband

Seiten

2789-2796

Anzahl der Seiten

8

Publikationsdatum

2015

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Sicherheit, Risiko, Zuverlässigkeit und Qualität

Ziele für nachhaltige Entwicklung

SDG 13 – Klimaschutzmaßnahmen

Elektronische Version(en)

https://www.researchgate.net/publication/281864196_Reliability_assessments_and_remaining_life_of_pipelines_subject_to_combined_loadings_using_imprecise_probabilities (Zugang: Offen)