Concrete matrix behaviour can be described with an isotropic scalar damage model Lemaitre, 1992; Lemaitre and Desmorat, 2005 in which its tensile strengthst is different to its compression strength sc as indicated Figure 1a..
El comportamiento de la matriz de concreto se describe mediante un modelo de daño escalar isótropo Lemaitre, 1992; Lemaitre y Desmorat, 2005, cuya resistencia a tracción stes diferente de su resistencia a compresión sc , como lo muestra la Figura 1a.