Exploració per tema "Fracture"
Ara es mostren els items 21-40 de 45
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Fourth order phase-field model for local max-ent approximants applied to crack propagation
(2016-12)
Article
Accés obertWe apply a fourth order phase-field model for fracture based on local maximum entropy (LME) approximants. The higher order continuity of the meshfree LME approximants allows to directly solve the fourth order phase-field ... -
Fracture and fatigue of titanium narrow dental implants: New trends in order to improve the mechanical response
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-12)
Article
Accés obert
Realitzat a/amb: Universidad de Sevilla / Universitat de València / Universitat Internacional de CatalunyaSixty-four fractured commercially pure titanium (cp-Ti) narrow dental implants (NDIs) with similar macrogeometry and connection designs were studied after different implantation times in humans in order to determine their ... -
From continuum mechanics to fracture mechanics: the strong discontinuity approach
(2002-01)
Article
Accés obertThe 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 ... -
Geomechanical stability of the caprock during CO2 sequestration in deep saline aquifers
(2011)
Article
Accés obertSequestration of carbon dioxide (CO2) in deep saline aquifers has emerged as a mitigation strategy for reducing greenhouse gas emissions to the atmosphere. The large amounts of supercritical CO2 that need to be injected ... -
Geometry of nanoindentation cube-corner cracks observed by FIB tomography: Implication for fracture resistance estimation
(Elsevier, 2015-09-01)
Article
Accés obertWhen indenting a brittle material with a sharp indenter, cracks can be generated at the corners of the imprint. From the length of these cracks, the fracture resistance can be estimated. This technique is simple and allows ... -
Hardening effect and fatigue behavior enhancement through ball burnishing on AISI 1038
(Elsevier, 2019-12-18)
Article
Accés obertThe objective of this paper is to present a comprehensive study of the effects of ball burnishing on the low cycle fatigue endurance of cylindrical specimens subjected to alternative bending stress, by constructing fatigue ... -
Influence of polyhedral oligomeric silsesquioxanes on thermal and mechanical properties of melt-mixed poly(methyl methacrylate)/polyhedral oligomeric silsesquioxanes composites
(2014-05-03)
Article
Accés restringit per política de l'editorialIn this study, the influence of the functionalization of fully or incomplete condensed polyhedral oligomeric silsesquioxanes composites (POSS) nanoparticles on the properties of poly(methyl methacrylate) (PMMA)-based ... -
Mathematical and computational modeling of flexoelectricity at fixed and moving interfaces, fracture surfaces and contact
(Universitat Politècnica de Catalunya, 2023-09-08)
Tesi
Accés obert(English) Flexoelectricity is a two-way coupling between strain gradient and polarisation or strain and polarization-gradient. Harnessing flexoelectricity as a functional property requires gradient engineering. This is a ... -
Microplane model M7for fiber reinforced concrete
(2013-06-01)
Article
Accés restringit per política de l'editorialModel M7f is a new model for fiber reinforced concretes under static and dynamic loads, which features two kinds of improvement over the earlier versions: (1) It is built on M7, a new, greatly improved, microplane model ... -
Microplane model of cylindrical geometry for transversely isotropic polymer composites
(Elsevier, 2022-08)
Article
Accés restringit per política de l'editorialIn this paper, a microplane model based on cylindrical geometry where the cylinder axis coincides with the longitudinal direction is developed for a general 3D inelastic fracturing analysis by finite element method of ... -
Microstructural influence on tolerance to corrosion-induced damage in hardmetals
(2016)
Article
Accés obertThe influence of the microstructure on the tolerance of WC-Co cemented carbides to corrosion damage was studied by using residual strength as the critical design parameter. In doing so, samples were immersed in synthetic ... -
Model Order Reduction in computational multiscale fracture mechanics
(2016-09)
Article
Accés obertNowadays, the model order reduction techniques have become an intensive research eld because of the increasing interest in the computational modeling of complex phenomena in multi-physic problems, and its conse- quent ... -
Modeling and simulation of conducting crack propagation in ferroelectric single crystals under purely electrical loading
(2013)
Text en actes de congrés
Accés obertWe present a phase-field model of fracture in ferroelectric single crystals for the simulation of conducting crack propagation under purely electrical loading. This is done by introducing the electrical enthalpy of a diffuse ... -
Modeling tensile crack propagation in concrete gravity dams via crack-path-field and strain injection techniques
(2016-03)
Article
Accés obertThis work investigates tensile crack propagation in concrete gravity dams by using some recently developed numerical techniques (crack-path field and strain injection techniques). The work carefully addresses aspects related ... -
Numerical modelling of two-phase flow in fractured rock masses using zero-thickness interface elements
(International Centre for Numerical Methods in Engineering (CIMNE), 2021)
Text en actes de congrés
Accés obertIn recent years, the authors and co-workers have developed a 3D finite element model for coupled thermo-hydro-mechanical (THM) problems in fractured rock masses. Zero-thickness interface elements are used for taking into ... -
On the equivalence between traction- and stress-based approaches for the modeling of localized failure in solids
(2015-09)
Article
Accés obertThis work investigates systematically traction- and stress-based approaches for the modeling of strong and regularized discontinuities induced by localized failure in solids. Two complementary methodologies, i.e., ... -
On the strong discontinuity approach in finite deformation settings
(John Wiley & sons, 2003-02)
Article
Accés obertTaking the strong discontinuity approach as a framework for modelling displacement discontinuities and strain localization phenomena, this work extends previous results in infinitesimal strain settings to finite deformation ... -
Phase-field modeling of crack propagation in piezoelectric and ferroelectric materials with different electromechanical crack conditions
(2012-12)
Article
Accés obertWe present a family of phase-field models for fracture in piezoelectric and ferroelectric materials. These models couple a variational formulation of brittle fracture with, respectively, (1) the linear theory of piezoelectricity, ... -
Phase-field modeling of fracture in ferroelectric materials
(2015-04-01)
Article
Accés obertThis paper presents a family of phase-field models for the coupled simulation of the microstructure formation and evolution, and the nucleation and propagation of cracks in single and polycrystalline ferroelectric materials. ... -
Probabilistic assessment for clavicle fracture under compression loading: rate-dependent behavior
(2020-10)
Article
Accés obertPedestrians, motorcyclists, and occupants of vehicle involved in side impacts can suffer lateral impacts at the shoulder with sufficiently high forces to fracture the clavicle. While some previous studies have developed a ...