Modelling of stress-corrosion cracking by using peridynamics

Dennj De Meo, Cagan Diyaroglu, Ning Zhu, Erkan Oterkus, M. Amir Siddiq

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We present for the first time a numerical multiphysics peridynamic framework for the modelling of adsorbed-hydrogen stress-corrosion cracking (SCC), based on the adsorption-induced decohesion mechanism. The material is modelled at the microscopic scale using microstructural data. First-principle studies available in the literature are used for characterizing the process of intergranular material strength degradation. The model consists of a polycrystalline AISI 4340 high-strength low-alloy (HSLA) thin, pre-cracked
steel plate subjected to a constant displacement controlled loading and exposed to an aqueous solution. Different values of stress intensity factor (SIF)
are considered, and the resulting crack propagation speed and branching behaviour are found to be in good agreement with experimental results available in the literature.
LanguageEnglish
Pages6593-6609
Number of pages17
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number15
Early online date27 Mar 2016
DOIs
Publication statusPublished - 27 Apr 2016

Fingerprint

stress corrosion cracking
stress intensity factors
crack propagation
Stress corrosion cracking
high strength
Stress intensity factors
Strength of materials
Crack propagation
mechanical properties
degradation
aqueous solutions
Adsorption
Degradation
Hydrogen
adsorption
hydrogen

Keywords

  • stress-corrosion cracking
  • polycrystalline materials
  • peridynamics
  • grain boundary diffusion
  • crack branching
  • hydrogen adsorption-induced decohesion

Cite this

De Meo, Dennj ; Diyaroglu, Cagan ; Zhu, Ning ; Oterkus, Erkan ; Siddiq, M. Amir. / Modelling of stress-corrosion cracking by using peridynamics. In: International Journal of Hydrogen Energy. 2016 ; Vol. 41, No. 15. pp. 6593-6609.
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abstract = "We present for the first time a numerical multiphysics peridynamic framework for the modelling of adsorbed-hydrogen stress-corrosion cracking (SCC), based on the adsorption-induced decohesion mechanism. The material is modelled at the microscopic scale using microstructural data. First-principle studies available in the literature are used for characterizing the process of intergranular material strength degradation. The model consists of a polycrystalline AISI 4340 high-strength low-alloy (HSLA) thin, pre-crackedsteel plate subjected to a constant displacement controlled loading and exposed to an aqueous solution. Different values of stress intensity factor (SIF)are considered, and the resulting crack propagation speed and branching behaviour are found to be in good agreement with experimental results available in the literature.",
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Modelling of stress-corrosion cracking by using peridynamics. / De Meo, Dennj; Diyaroglu, Cagan; Zhu, Ning; Oterkus, Erkan; Siddiq, M. Amir.

In: International Journal of Hydrogen Energy, Vol. 41, No. 15, 27.04.2016, p. 6593-6609.

Research output: Contribution to journalArticle

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T1 - Modelling of stress-corrosion cracking by using peridynamics

AU - De Meo, Dennj

AU - Diyaroglu, Cagan

AU - Zhu, Ning

AU - Oterkus, Erkan

AU - Siddiq, M. Amir

PY - 2016/4/27

Y1 - 2016/4/27

N2 - We present for the first time a numerical multiphysics peridynamic framework for the modelling of adsorbed-hydrogen stress-corrosion cracking (SCC), based on the adsorption-induced decohesion mechanism. The material is modelled at the microscopic scale using microstructural data. First-principle studies available in the literature are used for characterizing the process of intergranular material strength degradation. The model consists of a polycrystalline AISI 4340 high-strength low-alloy (HSLA) thin, pre-crackedsteel plate subjected to a constant displacement controlled loading and exposed to an aqueous solution. Different values of stress intensity factor (SIF)are considered, and the resulting crack propagation speed and branching behaviour are found to be in good agreement with experimental results available in the literature.

AB - We present for the first time a numerical multiphysics peridynamic framework for the modelling of adsorbed-hydrogen stress-corrosion cracking (SCC), based on the adsorption-induced decohesion mechanism. The material is modelled at the microscopic scale using microstructural data. First-principle studies available in the literature are used for characterizing the process of intergranular material strength degradation. The model consists of a polycrystalline AISI 4340 high-strength low-alloy (HSLA) thin, pre-crackedsteel plate subjected to a constant displacement controlled loading and exposed to an aqueous solution. Different values of stress intensity factor (SIF)are considered, and the resulting crack propagation speed and branching behaviour are found to be in good agreement with experimental results available in the literature.

KW - stress-corrosion cracking

KW - polycrystalline materials

KW - peridynamics

KW - grain boundary diffusion

KW - crack branching

KW - hydrogen adsorption-induced decohesion

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