Abstract
A three-dimensional (3D) numerical model to simulate damage in reinforced concrete (RC) under non-uniform corrosion as a function of the real climate, is presented in this study. The concrete damage plasticity model is implemented to investigate the damage behavior of reinforced concrete. Numerical predictions in terms of damage patterns are obtained and verified with the experimental results to demonstrate the applicability of the model. The validated model is extended to ascertain the role of variations in real temperature (T) and relative humidity (RH) on non-uniform corrosion-induced concrete damage, for a multi-rebar RC system. Representative tropical and temperate marine climates have been chosen in the investigations. Considerably different damage patterns and crack widths are obtained in the reinforced concrete under both climates. Effect of different anode–cathode configurations of steel bars on concrete damage under non-uniform corrosion in 3D is also investigated. 3D modelling techniques used in the study provide a true insight into the deterioration of RC under non-uniform corrosion, considering the role of T and RH variations in the external environment.
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