In this work, a critical comparison between three different numerical approaches for the
computational modelling of quasi-brittle structural failure is presented. Among the many …

Over the last three decades, a number of researchers have used the gradient-enhanced
plasticity theory to model the microstructural material behavior, which is not able to be …

The behavior of reinforced concrete (RC) structures under severe demands, as strong
ground motions, is highly complex; this is mainly due to joint operation of concrete and steel …

This paper presents a modified regularized formulation of the Ambrosio–Tortorelli type to
introduce the crack non-interpenetration condition in the variational approach to fracture …

In its numerical implementation, the variational approach to brittle fracture approximates the
crack evolution in an elastic solid through the use of gradient damage models. In this article …

With the number of 3D printed concrete structures rapidly increasing, the demand for
concepts that allow for robust and ductile printed objects becomes increasingly pressing. An …

A model which allows the introduction of displacements jumps to conventional finite
elements is developed. The path of the discontinuity is completely independent of the mesh …

The paper describes two-dimensional meso-scale numerical results of fracture in notched
concrete beams under quasi-static three-point bending. Concrete was modelled as a …

The paper is devoted to gradient damage models which allow us to describe all the process
of degradation of a body including the nucleation of cracks and their propagation. The …

A transient-gradient enhanced damage model has been developed for the numerical
modelling of the damage and fracture process within a continuum damage mechanics …