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Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 41 No. 1, 2021.

Original scientific paper

https://doi.org/10.30765/er.1371

Numerical study for reliability assessment of a corroding pipe to flange weld joint over its lifetime

Mourad Nahal orcid id orcid.org/0000-0003-2780-1660 ; Department of Mechanical Engineering, Mohamed Chérif Messaadia University,P.O. Box 1553, Souk-Ahras, 41000, Algeria
Abdelaziz Lakehal orcid id orcid.org/0000-0001-8634-7301 ; Department of Mechanical Engineering, Mohamed Chérif Messaadia University,P.O. Box 1553, Souk-Ahras, 41000, Algeria
Rabia Khelif ; Badji Mokhtar University, BP 12, Annaba, 23000, Algeria

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Abstract

Numerical model of a corroded weld joint connecting pipe to flange using a finite element method was developed, and coupled with usual stress models. The structure material has been characterized experimentally. Monte Carlo simulations, FORM and SORM methods have been applied for estimating reliability and failure probability under corrosion and residual stress effects. A numerical case with various corrosion rates was conducted to determine the reliability of the welded connection pipe to flange. The obtained results show that the heat affected zone is very sensitive to corrosion effects due to the welding process.

Keywords

pipeline corrosion; weld joint; reliability; finite element model; monte carlo; form

Hrčak ID:

255121

URI

https://hrcak.srce.hr/255121

Publication date:

27.9.2021.

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