A discontinuous-based porosity-based model for concrete subjected to time-
evolution self-healing phenomena is presented in this work. The model represents an
extension of a fracture energy-based elasto-plastic interface formulation which now in-
cludes porosity evolution induced by self-healing mechanisms. The formulation accounts
for the characterization of concrete failure behavior in mode I and II fracture types. The
post-cracking response is considered by means of specic work softening rules in terms
of work spent and porosity evolution. The eects of the aforementioned phenomenon
on the recovery of stiness and load bearing capacities have been evaluated by means
of three-point bending (3PB) tests performed up to controlled crack opening and up
to failure, respectively, before and after conditioning. Experimental tests are employed
as benchmark to validate the proposed model formulation. Particularly, after outlining
the mathematical formulation of the constitutive model for interface elements, numerical
analysis are compared against test data