Programa de Doctorat en Anàlisi Estructural: Envíos recientes
Mostrando ítems 61-80 de 99
Robust volume mesh generation for non-watertight geometries
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 ...
Estudio de arcos estructurales obtenidos por embutición a partir de paneles nervados conformados en frío
Since a few decades ago, the cold-formed steel industry has developed a press-forming procedure to bend trapezoidal commercial steel sheeting into an arched shape. The main quality of these arches is to be self-supporting, ...
Elementos finitos mixtos estabilizados para flujos viscoplásticos
The objective of this thesis is to develop and evaluate a methodology for the solution of the Navier-Stokes equations for Bingham Herschel-Bulkley viscoplastic fluids using stabilized mixed velocity/pressure finite elements. ...
Development and applications of the Finite Point Method to compressible aerodynamics problems
This work deals with the development and application of the Finite Point Method (FPM) to compressible aerodynamics problems. The research focuses mainly on investigating the capabilities of the meshless technique to address ...
Numerical modeling of metal cutting processes using the Particle Finite Element Method
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, ...
Analysis of unreinforced and TRM-strengthened brick masonry walls subjected to eccentric axial load
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 ...
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
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 ...
Estudi teòric i experimental del comportament del lligament creuat posterior i del tendó patel·lar a les forces tallants del genoll caní: sa, amb escissió del lligament creuat anterior i reparat amb la tècnica d'avanç de la tuberositat tibial (TTA)
The knee joint is the largest and most complex both in humans and in canines. The internal forces that govern it, are not known exactly. Canine knee injuries are recurrent, especially in the anterior cruciate ligament, a ...
Anàlisi del comportament a compressió de perfils prims oberts d'acer conformats en fred
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 ...
Evaluación del daño por impacto en laminados de material compuesto mediante la respuesta dinámica
Composite laminates offer decisive advantages compared to more traditional materials, especially in structural applications where weight is a design-limiting factor. However, they have also shown a susceptibility to impact ...
A contribution to the finite element analysis of high-speed compressible flows and aerodynamics shape optimization
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 ...
On the theory of cell migration: durotaxis and chemotaxis
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 ...
Computational model of the human urinary bladder
La propuesta de una vejiga artificial es un obstáculo a trasponer. El cáncer de vejiga está entre los casos más frecuentes de enfermedades oncológicas en Estados Unidos y Europa. Ese cáncer es considerado un problema médico ...
A compressible Lagrangian framework for the simulation of underwater implosion problems
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 ...
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
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 ...
A constitutive model of human esophagus tissue with application for the treatment of stenosis
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 ...
Advances in the development of the discrete element method for excavation processes
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 ...
Multifield-based modeling of material failure in high performance reinforced cementitious composites
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 ...
Modelación probabilista de pérdidas económicas por sismo para la estimación de la vulnerabilidad fiscal del estado y la gestión financiera del riesgo soberano
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, ...
Caracterización estadística de los modelos de confinamiento y determinación de coeficientes parciales de seguridad para el refuerzo de pilas de puentes de hormigón mediante materiales compuestos (CFRP)
El continuo deterioro y/o daños causados en las estructuras de hormigón durante su vida útil, son fenómenos inevitables que conlleva el paso del tiempo y viene a ser un problema importante que ha conducido al desarrollo ...
