Cyclic constitutive model for concrete
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Tipus de documentArticle
Data publicació2008
EditorElsevier
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
A constitutive model for concrete subjected to cyclic loadings in both compression and tension is presented. The proposed model is intended
to provide improvements on modelling the cyclic behaviour of concrete structures in the context of computational programs based on a smeared
crack approach. Particular emphasis has been paid to the description of the strength and stiffness degradation produced by the load cycling in both
tension and compression, the shape of unloading and reloading curves and the transition between opening and closing of cracks. Two independent
damage parameters in compression and in tension have been introduced to model the concrete degradation due to increasing loads. In the case of
cyclic compressive loading, the model has been derived from experimental results obtained by other authors by considering the dependency of
the cyclic variables with the damage level attained by the concrete. In the case of cyclic tension a simple model is adopted based on experimental
observations. The main novelty of the proposed constitutive model lays in the fact that all the required input data can be obtained through the
conventional monotonic compression and tension tests.
CitacióSima, J.F.; Roca, P.; Molins, C. Cyclic constitutive model for concrete. Engineering structures. 2008, vol. 30, no. 3, pp. 695-706.
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