Metodología para la modelación, cálculo y calibración de parámetros de la amenaza sísmica para la evaluación probabilista del riesgo 

    Bernal Granados, Gabriel Andrés (Fecha de defensa: 2014-11-09)

    In the assessment of seismic risk, hazard is one of its main components, given that, from a probabilistic perspective, provides the annual rates of exceedance of the intensities of strong motion in the site or region of ...

    Modelación probabilista de pérdidas económicas por sismo para la estimación de la vulnerabilidad fiscal del estado y la gestión financiera del riesgo soberano 

    Marulanda Fraume, Mabel Cristina (Fecha de defensa: 2013-04-25)

    El riesgo sísmico y en general los desastres futuros que puede sufrir una ciudad, una región o un país significan una obligación o pasivo contingente no explícito que puede afectar, desde el punto de vista macroeconómico, ...

    Modelado de multifractura discreta en materiales quasi-frágiles 

    Lafontaine, Nelson M. (Fecha de defensa: 2016-01-18)

    The stated goal of this work is to develop a numerical explicit finite element method able to effectively address the strain localization process, discrete fracture and fragmentation process in quasi-brittle materials, ...

    Modelización numérica del comportamiento constitutivo del daño local y global y su correlación con la evolución de las frecuencias naturales en estructuras de hormigón reforzado 

    Paredes López, Jairo-Andrés (Fecha de defensa: 2013-11-11)

    Esta tesis surge de la necesidad de establecer un método racional y práctico para identificar, a través del cambio de las frecuencias naturales , el daño en estructuras de hormigón armado. Por lo que se desarrolla un nuevo ...

    Modelo constitutivo para tejido óseo humano : propiedades mecánicas del hueso cortical de costilla 

    Velázquez Ameijide, Juan (Fecha de defensa: 2015-03-23)

    This dissertation deals with obtaining the mechanical properties of the cortical bone of the human ribs. One hundred one samples from 76 donors were tested for this study. The number of tested samples significantly ...

    Multifield-based modeling of material failure in high performance reinforced cementitious composites 

    Mora, D. F. (Diego Fernando) (Fecha de defensa: 2013-04-26)

    Cementitious materials such as mortar or concrete are brittle and have an inherent weakness in resisting tensile stresses. The addition of discontinuous fibers to such matrices leads to a dramatic improvement in their ...

    Multiscale numerical modelling of microstructured reinforced composites 

    Otero Gruer, Fermin (Fecha de defensa: 2016-02-09)

    Most of the existing materials around us can be considered composite materials, since they are composed by several phases or components at certain spatial scale. The physical and chemical properties of composites, as occurs ...

    Nonlinear Analysis of Orthotropic Membrane and Shell Structures Including Fluid-Structure Interaction. 

    Valdés Vázquez, Jesús Gerardo (Fecha de defensa: 2007-10-18)

    Problemas de interacciónn fluido-estructura representan hoy en día un gran desafío en diferentes áreas de ingeniería y ciencias aplicadas. Dentro de las aplicaciones en ingeniería civil, el flujo del viento y los movimientos ...

    Numerical calculation model for the global analysis of concrete structures with masonry walls 

    Escudero Torres, Cuauhtémoc (Fecha de defensa: 2015-07-13)

    The numerical simulation in the field of civil engineering, while widely used in structural design, has not benefited from the full potential offered by new technologies for the analysis and design of composite materials ...

    Numerical modeling of metal cutting processes using the Particle Finite Element Method 

    Rodríguez Prieto, Juan Manuel (Fecha de defensa: 2014-03-06)

    Metal cutting or machining is a process in which a thin layer or metal, the chip, is removed by a wedge-shaped tool from a large body. Cutting is a complex physical phenomena in which friction, adiabatic shear bands, ...

    Numerical modelling based on the multiscale homogenization theory. Application in composite materials and structures 

    Badillo Almaraz, Hiram (Fecha de defensa: 2012-04-16)

    A multi-domain homogenization method is proposed and developed in this thesis based on a two-scale technique. The method is capable of analyzing composite structures with several periodic distributions by partitioning the ...

    Numerical modelling of the growth and remodelling phenomena in biological tissues 

    Comellas Sanfeliu, Ester (Fecha de defensa: 2016-02-05)

    Living biological tissues are complex structures that have the capacity of evolving in response to external loads and environmental stimuli. The adequate modelling of soft biological tissue behaviour is a key issue in ...

    Numerical simulation of fatigue processes : application to steel and composite structures 

    Barbu, L. G. (Lucia Gratiela) (Fecha de defensa: 2016-02-01)

    The present thesis aims at advancing an innovative computational methodology that simulates steel and composite material fracture under cyclic loading following a phenomenological approach, with calibration from both small ...

    Numerical simulation of multi-fluid flows with the Particle Finite Element Method 

    De Mier Torrecilla, Monica (Fecha de defensa: 2010-06-29)

    La presencia simultánea de múltiples fluidos con diferentes propiedades ocurre en numerosos problemas medioambientales, procesos industriales y situaciones de la vida diaria. Algunos ejemplos son la interacción fluido-combustible ...

    On the theory of cell migration: durotaxis and chemotaxis 

    Diego Íñiguez, Javier (Fecha de defensa: 2013-07-03)

    Cell migration is a fundamental element in a variety of physiological and pathological processes. Alteration of its regulatory mechanisms leads to loss of adhesion and increased motility, critical steps in the initial ...

    Particle finite element methods for modelling granular material flows 

    Dávalos Chargoy, César Emilio (Fecha de defensa: 2014-06-19)

    The aim of this work is to present a new procedure for modelling industrial processes that involve granular material flows, using a numerical model based on the Particle Finite Element Method (PFEM). The numerical results ...

    Regularized Maxwell equations and nodal finite elements for electromagnetic field computations in frequency domain 

    Otín, R. (Rubén) (Fecha de defensa: 2011-05-04)

    En esta tesis se presenta una alternativa a la formulación clásica de elementos finitos basada en elementos de arista (edge elements) y las ecuaciones de Maxwell curl-curl. Este enfoque alternativo se basa en elementos ...

    Riesgo sísmico de edificaciones en términos de pérdidas económicas mediante integración de costos de reparación de componentes 

    Yamin Lacouture, Luis Eduardo (Fecha de defensa: 2016-01-28)

    The probabilistic seismic risk assessment in terms of economic losses for building portfolios aims at the estimation of the probability distribution functions of losses. This can be done for a specific seismic event ...

    Robust volume mesh generation for non-watertight geometries 

    Coll Sans, Abel (Fecha de defensa: 2014-07-01)

    Nowadays large part of the time needed to perform a numerical simulation is spent in preprocessing, especially in the geometry cleaning operations and mesh generation. Furthermore, these operations are not easy to automatize ...

    Simulación numérica de procesos de compactación y extrusión de materiales pulverulentos: aplicación a la pulvimetalurgia industrial 

    Weyler Pérez, Rafael (Fecha de defensa: 2000-07-17)

    Uno de los principales problemas asociados a la fabricación de piezas sinterizadas se debe a la pérdida de homogeneidad en las propiedades del aglomerado obtenido durante el proceso de compactación. Por ello, es primordial ...