A usual trick in various modelling approaches for computational fracture (i.e. damage models, phase-field approaches) is to include an artificial residual stiffness. This is done to avoid singularity of the tangent stiffness ...

Understanding the material failure of quasi-brittle materials, such as concrete, is of vital importance in civil engineering. A continuous-discontinuous model using X-FEM enrichment can be useful when an explicit representation ...

Fracture modelling has always been a direction of research in engineering, more specifically in civil engineering. In this last quarter of century, the implementation of nonlocality in damage models has been a direction ...

In this work, a new continuous-discontinuous approach is presented. This new technique is based on a non-local model (such as continuum damage or plasticity) based on non- local displacements. On the one hand, this work ...

Modelling vibroacoustic problems in the field of building design is a challenging problem due to the large size of the domains and the wide frequency range required by regulations. Standard numerical techniques, for instance ...

In the packaging industry, a wide range of powders and bulk solids are handled in bagging equipment using different bulk feeding techniques. Quality of the packaging is critically affected by feeder performance, which is ...

This thesis proposes a new computational model for the efficient simulation of crack propagation, through the combination of a phase-field model in small subdomains around crack tips and a discontinuous model in the rest ...

Diversos procesos naturales e industriales de interés medioambiental se modelan a través de la ecuación de convección-difusión-reacción transitoria. Dos aplicaciones tecnológicas que han motivado esta tesis son el ...