International audienc

International audienceA new stress resultant constitutive model for reinforced concrete plates under cyclic solicitations ispresented. This model is built by the periodic homogenisation approach using the averaging methodand couples damage of concrete and periodic debonding between concrete and steel rebar. Inone-dimensional situations, we derive a closed-form solution of the local problem useful to verify andset up the plate problem. The one dimensional macroscopic constitutive model involves a limited numberof parameters, the sensibility of which is studied. Comparison to experimental results underlines the pertinenceof the model by considering internal debonding in order to properly represent the mechanicaldissipation occurring during cyclic loadings on reinforced concrete panels