Recent developments on computational modeling of material failure in plain and reinforced concrete structures

A.E. HUESPE; J. OLIVER; G. DIAZ; P.J. SÁNCHEZ

EURO-C 2010. Computational Modelling of Concrete Structures

EURO-C

Año: 2010;

New developments for the computational simulation of plain and reinforced concrete structures are presented. Two models based on different length scales are proposed: one, at the macroscopic level, con-siders a homogenized material. Another, at the mesoscale level, describes specifically each mechanical com-ponent of the reinforced concrete members. Numerical applications of both approaches addressed to different problems are presented. Particular attention is given to the plain concrete simulation in confined regimes in order to capture the high stress triaxiality compressive states, which are typical of reinforced structures. The plain concrete is described via a new phenomenological model which can be characterized by a low number of parameters.