A compressible Lagrangian framework for the simulation of underwater implosion problems 

    Kamram, Kazem (Date of defense: 2013-06-21)

    The development of efficient algorithms to understand implosion dynamics presents a number of challenges. The foremost challenge is to efficiently represent the coupled compressible fluid dynamics of internal air and ...

    A constitutive model of human esophagus tissue with application for the treatment of stenosis 

    Sánchez Molina, David (Date of defense: 2013-11-07)

    This dissertation is a research about the mechanical behavior of the human esophagus. This work is intended to be applied in the treatment of stenosis and other esophageal diseases that frequently require a procedure of ...

    A contribution to the finite element analysis of high-speed compressible flows and aerodynamics shape optimization 

    Kouhi Esfahani, Mohammad (Date of defense: 2013-09-30)

    This work covers a contribution to two most interesting research elds in aerodynamics, the fi nite element analysis of high-speed compressible flows (Part I) and aerodynamic shape optimization (Part II). The fi rst part ...

    A coupled Eulerian-PFEM model for the simulation of overtopping in rockfill dams 

    Larese de Tetto, Antonia (Date of defense: 2012-07-05)

    Rockfill dams are nowadays often preferred over concrete dams because of their economic advantages, their flexible design and thank to the great advance achieved in geosciences and geomechanics. Unfortunately their behavior ...

    A framework for developing finite element codes for multi-disciplinary applications. 

    Dadvand, Pooyan (Date of defense: 2007-07-13)

    The world of computing simulation has experienced great progresses in recent years and requires more exigent multidisciplinary challenges to satisfy the new upcoming demands. Increasing the importance of solving ...

    A Geometrical Domain Decomposition Methods in Computational Fluid Dynamics 

    Houzeaux, G. (Guillaume) (Date of defense: 2002-05-10)

    El método de descomposición de dominios (DD) que se propone en esta tesis pretende resolver flujos incompresibles alrededor de objetos en movimiento relativo. El algoritmo de DD está basado en un acoplamiento del tipo ...

    A There Dimensional Setting for Strong Discontinuities Modelling in Failure Mechanics 

    Vieira Chaves, Eduardo Walter (Date of defense: 2003-04-01)

    El estudio de la mecánica computacional de fallo ha ganado creciente popularidad en los últimos años. Modelizar el comportamiento poscrítico de estructuras puede alcanzar un grado elevado de complejidad, debido a la ...

    Advances in the development of the discrete element method for excavation processes 

    Labra, C. A. (Carlos Andrés) (Date of defense: 2012-07-19)

    Modelling of granular materials, soils and rocks has been a challenging topic of investigation for decades. Classical continuum mechanics has been used to idealize soils and rocks, and numerical solution techniques such ...

    Analysis of circular bond-type anchorages for prestressing composite rods under quasi-static, fatigue and time-dependent loads 

    Puigvert Cobos, Francesc (Date of defense: 2014-10-20)

    En estructures pretesades sotmeses a ambients corrosius, s'està estudiant la possibilitat de substituir els tendons d’acer per tendons que no pateixin els efectes de la corrosió. En aquest sentit, els materials compostos ...

    Analysis of unreinforced and TRM-strengthened brick masonry walls subjected to eccentric axial load 

    Bernat Masó, Ernest (Date of defense: 2014-02-07)

    A significant number of buildings are supported by load-bearing masonry walls. The preservation of these worldwide used structures is a sustainable alternative. However, there is little research about the structural response ...

    Anàlisi del comportament a compressió de perfils prims oberts d'acer conformats en fred 

    Bonada Bo, Jordi (Date of defense: 2014-01-23)

    Cold-formed thin-walled steel sections are frequently used in pallet rack structures. This type of cross-sections are normally used as a columns and contains perforations uniformly distributed enabling the connection between ...

    Anàlisis de sensibilidad con comportamiento no lineal del material y su aplicación en el diseño asistido de estructuras 

    Gil Espert, Lluís (Date of defense: 1997-02-14)

    El contenido de la tesis que se presenta se ha organizado de la manera siguiente:<br/><br/>A lo largo del capítulo 2 se describen los aspectos generales del estado del arte del análisis de sensibilidad, centrándose en las ...

    Análisis beneficio costo probabilista de medidas de mitigación del riesgo por sismo 

    Mora Cuevas, Miguel Genaro (Date of defense: 2016-02-02)

    In the situation to make decisions about which risk mitigation measures -RMM- to implement and the performance level required, arises the need for a quantitative analysis of benefits that may be obtained as well as the ...

    Análisis comparativo de la rigidez al desplazamiento antero-posterior de la rodilla canina completa, rodilla con rotura del ligamento cruzado anterior y rodilla reparada con la técnica de avance de la tuberosidad tibial 

    Musté Rodríguez, Marta (Date of defense: 2013-12-05)

    In canine traumatology, one of the most common knee pathologies is torn cruciate ligament (ACL), the diagnosis and treatment costs were 1.32 billion dollars in the U.S. during 2003. The short-term effects are instability ...

    Análisis del comportamiento frente acciones cíclicas de muros de mampostería reforzados con materiales compuestos de matriz inorgánica y tejidos de fibras vegetales 

    Mercedes Cedeño, Luis Enrique (Date of defense: 2019-10-04)

    In order to pursue sustainable objectives in the construction industry, a new composite material using vegetal fabric coated with resin and embedded into mortar was developed, characterized and applied on masonry walls. ...

    Análisis matemático del equilibrio en estructuras de membrana con bordes rígidos y cables. Pasarelas: forma y pretensado 

    Viglialoro, Giuseppe (Date of defense: 2007-03-14)

    Las membranas son estructuras (sin rigidez a flexión) que conforman una superficie en el espacio, con espesor mínimo. Se aproximan a una superficie geométrica y trabajan sólo mediante esfuerzos de membrana (de tracción) y ...

    Análisis resistente de estructuras de obra de fábrica mediante redes funiculares simuladas computacionalmente 

    Andreu Torras, Antoni (Date of defense: 2006-09-22)

    Este trabajo tiene por objetivo desarrollar una estrategia orientada a resolver de forma computacional el equilibrio estático de las obras pétreas formadas por elementos unidimensionales empleando la analogía clásica de ...

    Análisis y gestión del riesgo sísmico de edificios y sistemas esenciales 

    Valcárcel Torres, Jairo Andrés (Date of defense: 2013-02-01)

    Los daños por terremotos en edificios y sistemas esenciales han motivado la definición de estándares de comportamiento de estas instalaciones, buscando reducir las pérdidas económicas y la pérdida de funcionalidad. Varias ...

    Applications of turbulence modeling in civil engineering 

    Cotela Dalmau, Jordi (Date of defense: 2016-01-15)

    This thesis explores the use of stabilized finite element formulations for the incompressible Navier-Stokes equations to simulate turbulent flow problems. Turbulence is a challenging problem due to its complex and dynamic ...

    Caracterització termomecànica d'actuadors amb memòria de forma NiTiCu 

    Fabregat Sanjuan, Albert (Date of defense: 2015-07-15)

    In this thesis the thermomechanical characterization of the shape memory alloy NiTiCu working as an actuator with different heat treatment (HT) temperatures has been carried out. The results from the tests carried on ...