Open AccessNumerical study for reliability assessment of a corroding pipe to flange weld joint over its lifetime
Author(s) -
Mourad Nahal,
Abdelaziz Lakehal,
Rabia Khelif
Publication year - 2021
Publication title -
engineering review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.198
H-Index - 11
eISSN - 1849-0433
pISSN - 1330-9587
DOI - 10.30765/er.1371
Subject(s) - flange , welding , structural engineering , corrosion , finite element method , residual stress , reliability (semiconductor) , monte carlo method , joint (building) , computer simulation , materials science , engineering , metallurgy , mathematics , power (physics) , statistics , physics , quantum mechanics , simulation
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.