Naslov
Numerical analysis of effect of damage on chloride penetration into concrete

Autori
Ožbolt, Joško ; Balabanić, Gojko ; Periškić, Goran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
CMM-2009 Computer Methods in Mechanics / - , 2009

Skup
CMM-2009 Computer Methods in Mechanics

Mjesto i datum
Zielona Góra, Poljska, 18.05.2009. - 21.05.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
concrete; corrosion of reinforcement; chemo-hygro-thermo-mechanical model; microplane model; finite elements

Sažetak
In the present paper a current status of development of a 3D numerical chemo-hygro-thermo-mechanical model for concrete is presented. In the model the interaction between the non-mechanical (distribution of temperature, humidity, oxygen and chloride) and mechanical properties of concrete (damage) is accounted for. The strong and weak formulation of the model and its implementation into a 3D finite element code are briefly discussed. The formulation is here restricted to the processes up to the depassivation of reinforcement. The application of the model is illustrated on one numerical example in which the transient 3D FE analysis of RC slab is carried out in order to investigate the influence of damage of concrete on depassivation time. The loaded slab is damaged before the exposure of sea water. Consequently, its depassivation time is shorter than depassivation time of the companion slab, which is load free.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA