Simulation of stress-assisted localised corrosion using a cellular automaton finite element approach

O. O. Fatoba; R. Leiva-Garcia; S. V. Lishchuk; N. O. Larrosa; R. Akid

doi:10.1016/j.corsci.2018.03.029

Simulation of stress-assisted localised corrosion using a cellular automaton finite element approach

O. O. Fatoba^*, R. Leiva-Garcia, S. V. Lishchuk, N. O. Larrosa, R. Akid

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

In this paper, the overall corrosion damage process is modelled sequentially using cellular automata (CA) to describe the localised corrosion component, and finite element analysis (FEA) to account for the mechanical component resulting from the stress concentration effect of the corrosion defect (pit). Synchronous execution of the CA and FEA, and provision of feedback between both provides a good approximation of stress-assisted pit development. Qualitative and quantitative comparison of simulation results with experimental measurements show good agreement. In particular, the model shows that mechanical effects, notably plastic strain, accelerates the rate of development of localised corrosion.

Original language	English
Pages (from-to)	83-97
Number of pages	15
Journal	Corrosion Science
Volume	137
Early online date	20 Mar 2018
DOIs	https://doi.org/10.1016/j.corsci.2018.03.029
Publication status	Published - 1 Jun 2018

Keywords

A. Low alloy steel
B. Cellular automata
B. Finite Element analysis
B. Modelling studies
B. Potentiostatic polarisation
C. Pitting corrosion

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title = "Simulation of stress-assisted localised corrosion using a cellular automaton finite element approach",

abstract = "In this paper, the overall corrosion damage process is modelled sequentially using cellular automata (CA) to describe the localised corrosion component, and finite element analysis (FEA) to account for the mechanical component resulting from the stress concentration effect of the corrosion defect (pit). Synchronous execution of the CA and FEA, and provision of feedback between both provides a good approximation of stress-assisted pit development. Qualitative and quantitative comparison of simulation results with experimental measurements show good agreement. In particular, the model shows that mechanical effects, notably plastic strain, accelerates the rate of development of localised corrosion.",

keywords = "A. Low alloy steel, B. Cellular automata, B. Finite Element analysis, B. Modelling studies, B. Potentiostatic polarisation, C. Pitting corrosion",

author = "Fatoba, {O. O.} and R. Leiva-Garcia and Lishchuk, {S. V.} and Larrosa, {N. O.} and R. Akid",

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T1 - Simulation of stress-assisted localised corrosion using a cellular automaton finite element approach

AU - Fatoba, O. O.

AU - Leiva-Garcia, R.

AU - Lishchuk, S. V.

AU - Larrosa, N. O.

AU - Akid, R.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - In this paper, the overall corrosion damage process is modelled sequentially using cellular automata (CA) to describe the localised corrosion component, and finite element analysis (FEA) to account for the mechanical component resulting from the stress concentration effect of the corrosion defect (pit). Synchronous execution of the CA and FEA, and provision of feedback between both provides a good approximation of stress-assisted pit development. Qualitative and quantitative comparison of simulation results with experimental measurements show good agreement. In particular, the model shows that mechanical effects, notably plastic strain, accelerates the rate of development of localised corrosion.

AB - In this paper, the overall corrosion damage process is modelled sequentially using cellular automata (CA) to describe the localised corrosion component, and finite element analysis (FEA) to account for the mechanical component resulting from the stress concentration effect of the corrosion defect (pit). Synchronous execution of the CA and FEA, and provision of feedback between both provides a good approximation of stress-assisted pit development. Qualitative and quantitative comparison of simulation results with experimental measurements show good agreement. In particular, the model shows that mechanical effects, notably plastic strain, accelerates the rate of development of localised corrosion.

KW - A. Low alloy steel

KW - B. Cellular automata

KW - B. Finite Element analysis

KW - B. Modelling studies

KW - B. Potentiostatic polarisation

KW - C. Pitting corrosion

UR - http://www.scopus.com/inward/record.url?scp=85045008947&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2018.03.029

DO - 10.1016/j.corsci.2018.03.029

M3 - Article (Academic Journal)

AN - SCOPUS:85045008947

SN - 0010-938X

VL - 137

SP - 83

EP - 97

JO - Corrosion Science

JF - Corrosion Science

ER -

Simulation of stress-assisted localised corrosion using a cellular automaton finite element approach

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