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Modelling of IG-SCC mechanism at LWR conditions through coupling of a potential-based cohesive model and Fick’s second law
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0003-1498-5691
2015 (English)In: International Conference on Environmental Degradation of Materials in Nuclear Power Systems / [ed] Mike Wright, Canadian Nuclear Society , 2015Conference paper (Refereed)
Abstract [en]

A fracture mechanic and diffusion model was coupled to simulate the behavior of Intergranular Stress Corrosion Cracking (IG-SCC). To ensure correct physical behavior some assumptions were made, the ion travel, the non-reversible adsorption, the oxide growth dependencies and the diffusion dependency on damage. The model was implemented in a user subroutine in ABAQUS using a cohesive element formulation and an extra adsorption term in Fick’s second law. The coupling was achieved by assuming proportionality between the total adsorption and fracture energy. The physical assumtion were verified on a DCB model.

Place, publisher, year, edition, pages
Canadian Nuclear Society , 2015.
Keyword [en]
Intergranular Stress Corrosion Cracking, Finite Element Model, Fracture Mechanics, Diffusion
National Category
Engineering and Technology
Research subject
Solid Mechanics; Materials Science and Engineering
Identifiers
URN: urn:nbn:se:kth:diva-186871OAI: oai:DiVA.org:kth-186871DiVA: diva2:928488
Conference
17th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors
Note

QC 20160516

Available from: 2016-05-16 Created: 2016-05-16 Last updated: 2016-05-16Bibliographically approved

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17th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors

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