Cracking modelling in reinforced concrete via the strong discontinuity approach

D.L. LINERO, J. OLIVER, A.E. HUESPE, M.D.G. PULIDO

Mayrhofen, Tyrol, Austria.

Congreso; EURO-C 2006 Computational Modelling of Concrete Structures; 2006

This work describes a constitutive model for reinforced concrete with rebars oriented in one or two orthogonal directions. The material is considered as a matrix-fiber composite material constituted by long fibers (steel rebars) embedded into a concrete matrix. Then, material failure for the resulting composite material is modeled in the Continuum-Strong Discontinuity Approach (CSDA) setting. Both the tensile and the shear contributions of the reinforcement are accounted for, this allowing a proper representation of the bond-slip and dowel effects. The model performance is assessed through a series of classical tension and shear tests.