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Homogenised constitutive model coupling damage and debonding for reinforced concrete structures under cyclic solicitations

Abstract : A new stress resultant constitutive model for reinforced concrete plates under cyclic solicitations is presented. This model is built by the periodic homogenisation approach using the averaging method and couples damage of concrete and periodic debonding between concrete and steel rebar. In one-dimensional situations, we derive a closed-form solution of the local problem useful to verify and set up the plate problem. The one dimensional macroscopic constitutive model involves a limited number of parameters, the sensibility of which is studied. Comparison to experimental results underlines the pertinence of the model by considering internal debonding in order to properly represent the mechanical dissipation occurring during cyclic loadings on reinforced concrete panels.
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François Voldoire, Christelle Combescure, Hélène Dumontet. Homogenised constitutive model coupling damage and debonding for reinforced concrete structures under cyclic solicitations. International Journal of Solids and Structures, Elsevier, 2013, 50 (24), pp.3861-3874. ⟨10.1016/j.ijsolstr.2013.07.021⟩. ⟨hal-01634204⟩

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