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Fractures in Low-Permeability Rocks: Can Poroelastic Effects Associated With Damage Zones Enhance Their Seismic Visibility?
(Blackwell Publishing, 2021-05)
Fluid pressure diffusion (FPD) between a fracture and a porous permeable background can increase the normal compliance of the fracture and, thus, its reflectivity. However, many fractured environments of interest are ...
A progressive damage based lattice model for dynamic fracture of composite materials
(Elsevier, 2020-11)
In this paper we present an extension of the linear elastic lattice model for anisotropic materials previously developed by the authors. This approach takes into consideration damage evolution in composite materials by ...
Experimental and numerical characterization of damage evolution in steels
(PERGAMON-ELSEVIER SCIENCE LTD, 2007)
This paper presents an experimental and numerical characterization of ductile damage evolution in steels subjected to large plastic deformations. To this end, a set of tensile tests combining load-unload tensile cycles is ...
From continuum mechanics to fracture mechanics: the strong discontinuity approach
(Pergamon-Elsevier Science Ltd., 2002-09)
The paper deals with the strong discontinuity approach and shows the links with the decohesive fracture mechanics provided by that approach. On the basis of 1D continuum damage models it is shown that, by introducing some ...
A variational approach to the phase field modeling of brittle and ductile fracture
(2018)
The modeling of the post-critical behavior of materials is still a scientific challenge. This is especially true when dealing with materials that undergo complex behavior, in which several mechanisms are combined. This ...
Simulation of the fracture process through a damage model in different materials
(International Journal of Research and Reviews in Applied Sciences, 2015-06)
The study of fracture mechanics is directed to the analysis of the capability of the material to resist mechanical stress without the occurrence of failure. The presence of small cracks can reduce the structural strength ...
Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
(2014-01-01)
The purpose of this study was to assess the fracture resistance of extensively damaged teeth after two root canal preparation techniques (hand and rotary files) and after two filling techniques (active and passive compaction). ...
On the use of high aspect ratio finite elements to model hydraulic fracturing in deformable porous media
(2019-06-15)
Hydraulic fracturing is a technique based on the injection of a viscous fluid at high pressure into an engineered well with the intention of initiating and propagating multiple fractures in a rock formation containing ...
Double unilateral, bilateral, and multiple mandibular fractures: an observational study
(2018-09-01)
Purpose: Double and multiple mandibular fractures are associated to high morbidity and functional damage. This study aimed to evaluate the characteristics and outcomes of double unilateral, bilateral, and multiple mandibular ...