A macroscopic damage‐plastic constitutive law for modeling quasi‐brittle fracture and ductile behavior of concrete |
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| Authors: | P J Sánchez A E Huespe J Oliver G Diaz V E Sonzogni |
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| Institution: | 1. CIMEC‐INTEC‐UNL‐CONICET, Güemes 3450, 3000 Santa Fe, Argentina;2. GIMNI‐UTN‐FRSF, Lavaisse 610, 3000 Santa Fe, Argentina;3. ETSECCP, Technical University of Catalonia, Barcelona, Spain |
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| Abstract: | A new phenomenological macroscopic constitutive model for the numerical simulation of quasi‐brittle fracture and ductile concrete behavior, under general triaxial stress conditions, is presented. The model is particularly addressed to simulate a wide range of confinement stress states, as also, to capture the strong influence of the mean stress value in the concrete failure mechanisms. The model is based on a two‐surface damage‐plastic formulation. The mechanical behavior in different domains of the stress space is separately described by means of a quasi‐brittle or ductile material response:
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| Keywords: | concrete constitutive model concrete fracture quasi‐brittle ductile failure strong discontinuity approach |
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