Ara mostrant els elements 1-20 de 41

    A mechano-perfusion bioreactor for tissue engineering 

    Fernandes Freitas, Dino Miguel (Data de defensa: 2019-11-29)

    Tissue Engineering plays a vital role in tissue construct to repair, maintain or replace tissues. Those tissues can be cultivated in vivo or in vitro using devices such as bioreactors. There are several approaches to ...

    Advances in fibre Bragg grating sensors for damage detection in composite laminates: application in quasi-static and fatigue delamination tests 

    Sans Canovas, Daniel (Data de defensa: 2013-06-26)

    The use of composite materials in industrial applications such as aeronautical, aerospace or wind energy production has greatly increased in recent decades. Due to their inherent properties, these materials allow lighter, ...

    Advances in the modelling of thermoelectric energy harvesters in waste heat recovery applications 

    Massaguer Colomer, Eduard (Data de defensa: 2016-07-26)

    In this work, we investigate harvesting thermoelectric energy from wasted heat in fluid networks and propose a generic tool for the simulation and sizing of thermoelectric energy harvesters, that can be used in ...

    Analysis and Simulation of Transverse Random Fracture of Long Fibre Reinforced Composites 

    Trias Mansilla, Daniel (Data de defensa: 2005-04-18)

    La present tesi proposa una metodología per a la simulació probabilística de la fallada de la matriu en materials compòsits reforçats amb fibres de carboni, basant-se en l'anàlisi de la distribució aleatòria de les fibres. ...

    Analysis of creep crack growth in adhesively bonded joints under mode I loading 

    Meulman, Edwin (Data de defensa: 2023-10-06)

    Adhesive bonds could replace more traditional mechanical joints, making structures lighter and smoother. Stresses are distributed over a larger area, and dissimilar materials can be bonded, accommodating differences in ...

    Analysis of process-induced defects on steered-fiber panels for aeronautical applications 

    Falcó Salcines, Olben (Data de defensa: 2014-04-10)

    Currently, the use of Automated Fiber Placement technology allows, large composite aircraft components to be manufactured with high quality materials and introduce new laminate concepts. Among such concepts are the tow-steered ...

    Bond behavior of NSM FRP strips in concrete under sustained loading 

    Emara, Mohamed Reda Ali Elewa (Data de defensa: 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-slip and cracking behaviour of glass fibre reinforced polymer reinforced concrete tensile members 

    Vilanova Marco, Irene (Data de defensa: 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 (Data de defensa: 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 ...

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

    Sebaey Abdella, Tamer Ali Abdella (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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, ...

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

    Delgado Sanglas, Jordi (Data de defensa: 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 al desarrollo del proceso de selección de centros de mecanizado de alta velocidad, basado en parámetros tecnológicos y de productividad 

    Albertí Ibarz, Marta (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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 (Data de defensa: 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 ...