Universitat Politècnica de Catalunya
Ara mostrant els elements 41-60 de 72
In this research work, an analysis is first undertaken on the hazard regarding people exposed to floods in urban areas. Several experiments with people were carried out in order to determine the stability limit to pedestrians, ...
In this thesis we have developed a path towards large scale Finite Element simulations of turbulent incompressible flows. We have assessed the performance of residual-based variational multiscale (VMS) methods for the ...
(English) In post-seismic scenarios, the rapid and safe evaluation of structural damage is essential to develop an effective response during the recovery, rehabilitation and reconstruction stages. The development of new ...
The numerical modelling of fracture has been an active topic of research for over five decades. Most of the approaches employed rely on the use of the Finite Element Method, which has shown to be an effective and cost-efficient ...
Distributed hydrological modeling occurs as a historical consequence of the different developments and advances in conceptual hydrology, first, through deepening and adaptation of hydrology through aggregated methods, and ...
The main objective of this thesis is to describe and implement a rate-dependent (viscoplastic) constitutive equations for copper based canister using a single internal state variable and use it for modelling disposal schemes ...
Se ha llevado a cabo:<br/><br/>A) Un estudio de las propiedades básicas del suelo no saturado (tipo limo) a escala microestructural, incluyendo esqueleto sólido, fase liquida y fase gaseosa. <br/><br/>B) Elaboración de un ...
Water and sanitation improvements together with good hygiene (WaSH) have well-known positive impacts on human development and poverty alleviation. However, universal access to safe drinking water and basic sanitation remains ...
(English) This work presents a new updated reference Lagrangian Smooth Particle Hydrodynamics (SPH) algorithm for the analysis of large deformation by introducing a novel system of first order conservation laws. Both ...
The general description of a fluid flow involves the solution of the compressible Navier-Stokes equations, a very complex problem whose mathematical structure is not well understood. It is widely accepted that these equations ...
Based on the laboratory, field and numerical results, the post-rupture strength defined firstly by Burland (1990) is verified and introduced in this thesis to describe the two-stage post-peak strain-softening characteristics ...
El transporte de solutos no conservativos en medios porosos o fracturados es altamente influenciado por su heterogeneidad. Complejidad adicional se agrega al proceso de transporte, debido a la presencia de diferentes tipos ...
In this thesis, two main topics have been covered: the mechanics of strain localization in plasticity and the performance of several mixed finite elements subjected to plastic strain localization. Throughout the thesis, ...
The phase field method has proven to be an important tool in computational fracture mechanics in that it does not require complicated crack tracking and is able to predict crack nucleation and branching. However, the ...
Particle Image Velocimetry (PIV) is one of the most used experimental techniques in fluid mechanics to obtain the velocity field of a flow. One of its most celebrated characteristics is that it does not have interference ...
(English) This doctoral thesis investigates the causes that induce (micro)seismicity as a result of hydraulic stimulation in fractured low-permeability rock. Understanding such phenomenon is of paramount importance to ...
The work’s development is made by scientific method stages: aims statement, hypothesis establishment and work method to check hypothesis. Conclusions are given at the end. It is supported by: a) Bibliographical review, ...
(English) Understanding the triggering mechanisms of induced seismicity remains one of the most critical challenges in geo-energy applications. This Thesis aims at assessing (1) fault stability and induced seismicity ...
This thesis presents the results of applying a statistical hybrid approach for structural health monitoring using piezo actuating signals. Where, by combining statistical processing based on Principal Component Analysis ...
During the last years, the implementation of new Wastewater Treatment Plants has lead to a significant increase of sludge production. As a response, sludge valorisation in agriculture is the preferred option nowadays, ...
