Now showing items 12-31 of 77

    Bond behavior of NSM FRP strips in concrete under sustained loading 

    Emara, Mohamed Reda Ali Elewa (Date of defense: 2018-04-17)

    The main objective of work has been to study the bond strength and bond-slip response of NSM CFRP strips in concrete when subjected to sustained loading under different environmental conditions. To this end, two experimental ...

    Bond behaviour between CFRP and concrete for NSM systems under sustained loading 

    Gómez Colom, Javier (Date of defense: 2022-01-14)

    The rehabilitation of civil structures has been gaining importance during the last decades. Owing to their mechanical, corrosion resistance and lightweight properties, Carbon Fibre-Reinforced Polymers (CFRP) present an ...

    Bond-slip and cracking behaviour of glass fibre reinforced polymer reinforced concrete tensile members 

    Vilanova Marco, Irene (Date of defense: 2015-10-20)

    In this work, a methodology has been developed to implement the bond behaviour between concrete and GFRP bars in the numerical modelling. Based on experimental results and applying the inverse method, the bond law to be ...

    Caracterización mediante métodos inversos numéricos y correlación digital de imágenes de las propiedades elásticas en el plano de materiales compuestos laminados producidos con fabricación aditiva 

    Arbeláez Toro, Juan José (Date of defense: 2023-04-26)

    In recent years, additive manufacturing technologies (3D printing) have been introduced in different fields, such as locomotion and bioengineering, among others. Extrusion by Fused Deposition Modeling (FDM) or Fused ...

    Caracterização mecânica e biológica de scaffolds produzidos por BioCell Printing 

    Domingos, Marco (Date of defense: 2013-10-04)

    This research work proposes a novel automated and integrated system for the production and in vitro culture of scaffolds, called BioCell Printing. The main goal of the present research work, besides the development of the ...

    Characterization and optimization of dispersed composite laminates for damage resistant aeronautical structures 

    Sebaey Abdella, Tamer Ali Abdella (Date of defense: 2013-01-11)

    The main objective of the thesis is to assess the damage resistance and damage tolerance of the non-conventional dispersed laminates and compare the response with the conventional ones. However, part of the effort is spent ...

    Characterization of the translaminar cohesive law 

    Ortega Novillo, Adrián (Date of defense: 2017-04-20)

    When a fibre-reinforced composite laminate is subjected to traction or compression, it develops a relatively large Fracture Process Zone where material toughening mechanisms such as matrix cracking, ...

    A comprehensive methodology to analyse bonded joints subjected to different environmental conditions 

    Abdel Monsef, Said Ahmed Ibrahim (Date of defense: 2020-07-02)

    Cohesive zone models are widely used for modelling delamination and bonded joints under different loading conditions. In the current thesis, an objective inverse method has been developed to extract the cohesive law from ...

    A constitutive model for fatigue and residual strength predictions of composite laminates 

    Llobet Vallejo, Jordi (Date of defense: 2020-01-17)

    This thesis investigates the fatigue behaviour of fibre-reinforced composite laminates. Fatigue of composite materials is a complex subject both from an experimental and numerical modelling point of view. In this context, ...

    Contribució al posicionament dinàmic de robots mòbils per mitjà d'un sistema làser 

    Font Llagunes, Josep Maria (Date of defense: 2007-06-14)

    Aquesta tesi tracta el problema del posicionament de robots mòbils quan, en el decurs del moviment, es realitzen mesures angulars relatives al robot de l'orientació de la recta entre un dels seus punts i punts de l'entorn ...

    Contribución a la fundición selectiva por láser de pieza metálica mediante el estudio de propiedades mecánicas y de manufactura 

    Delgado Sanglas, Jordi (Date of defense: 2013-06-25)

    Selective laser melting process is an additive manufacturing technique that allows obtaining, from a 3D model, a physical model through a layer-by-layer manufacturing strategy. Several machines are commercially available, ...

    Contribución a la selección de cadenas de procesos de fabricación 

    Blanch Font, Robert (Date of defense: 2012-03-01)

    During the design phase, it creates and transforms ideas into products. It needs to know the manufacturing aspects for ensuring success and calculating the product cost while developing of designs. However, the choice one ...

    Contribución a la sostenibilidad en la edificación mediante el desarrollo de una metodología simplificada para el cálculo de la eficiencia energética y de sostenibilidad de una vivienda 

    Castellano i Costa, Jordi (Date of defense: 2016-02-01)

    El desarrollo de la sostenibilidad en la edificación ha realizado un gran avance en los últimos diez años, mejoras en la eficiencia energética de los edificios con la incorporación del certificado de eficiencia energética ...

    Contribución al desarrollo del proceso de selección de centros de mecanizado de alta velocidad, basado en parámetros tecnológicos y de productividad 

    Albertí Ibarz, Marta (Date of defense: 2010-06-10)

    La selección de centros de mecanizado de alta velocidad es un proceso complejo que requiere de mucha experiencia, puesto que en él intervienen un gran número de variables, tanto tecnológicas como económicas. Existen ...

    Contribución al estudio del proceso de doblado al aire de chapa. Modelo de predicción del ángulo de recuperación y del radio de doblado final 

    Garcia-Romeu, Maria Luisa (Date of defense: 2005-10-24)

    Modelo de predicción de la geometría final de una pieza de chapa, radio y ángulo de doblado final, producida mediante un proceso de doblado al aire.

    Contribución metodológica en técnicas de diseñar para fabricación 

    Ferrer Real, Inés (Date of defense: 2007-04-23)

    En el proceso de diseño se toman decisiones que pueden afectar a la fabricabilidad del producto. Cuando el diseñador es experto, considera las limitaciones, las propiedades y el coste de fabricación en la fase de materialización ...

    Contribution to bioabsorbable stent manufacture with additive manufacturing technologies 

    Guerra Sánchez, Antonio (Date of defense: 2019-06-06)

    The main motivation of this work was to analyse the feasibility of the current stent’s manufacturing process to produce the new bioresorbable stents (BRS) as well as study new manufacturing methods. Fibre Laser Cutting ...

    Contribution to laser milling process parameters selection for process planning operations 

    Teixidor Ezpeleta, Daniel (Date of defense: 2013-10-17)

    Nontraditional manufacturing processes (NTM) appeared to answer the growing demands of market productivity. Needs of higher quality products in less time and new demands such as new exotic work materials, innovative geometric ...

    Contribution to micro-milling process parameters selection for process planning operations 

    Vázquez Lepe, Elisa (Date of defense: 2014-05-20)

    The development of new products with micro-metric characteristics and complex geometries has been a manufacturing trend in different industrial sectors, particularly for electronic, military, biomedical and aerospace ...

    Contributions to ultrasonic micro-moulding process of high performance polymers 

    Dorf, Tomasz (Date of defense: 2019-06-05)

    Polymeric materials, which are suitable for high performance applications for example human implants are one of the most expensive available polymers. Standard injection micromoulding process, dedicated for mass production, ...