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Modelling processes related to corrosion of reinforcement in concrete: coupled 3D finite element model (CROSBI ID 235421)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ožbolt, Joško ; Oršanić, Filip ; Balabanić, Gojko Modelling processes related to corrosion of reinforcement in concrete: coupled 3D finite element model // Structure and infrastructure engineering, 13 (2017), 1; 135-146. doi: 10.1080/15732479.2016.1198400

Podaci o odgovornosti

Ožbolt, Joško ; Oršanić, Filip ; Balabanić, Gojko

engleski

Modelling processes related to corrosion of reinforcement in concrete: coupled 3D finite element model

Aggressive environmental conditions, such as exposure to the sea climate or use of de-icing salts, have a strong influence on durability of reinforced concrete (RC) structures due to reinforcement corrosion-induced damage. In the present paper, a recently developed three- dimensional (3D) chemo-hygro-thermo-mechanical model for concrete is briefly discussed. The model was implemented into a 3D finite element code and its application is illustrated through numerical analysis of a RC beam-end specimen with stirrups, exposed to aggressive environmental conditions. Damage of concrete cover due to expansion of corrosion products and transport of rust through concrete pores and cracks are computed. Subsequently, the influence of corrosion-induced damage of concrete cover on pull-out resistance of deformed reinforcement is investigated. The comparison between numerical results and experimental evidence shows that the complex coupled mathematical model is able to realistically predict the phenomena related to corrosion of steel reinforcement in concrete

chemo-hygro-thermo-mechanical model ; corrosion ; finite elements ; microplane model ; pull-out capacity ; Reinforced concrete

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Podaci o izdanju

13 (1)

2017.

135-146

objavljeno

1573-2479

10.1080/15732479.2016.1198400

Povezanost rada

Građevinarstvo, Temeljne tehničke znanosti

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