A computational micromechanics investigation of longitudinal strength in unidirectional fibre reinforced composites 

    Barzegar, Mostafa (Date of defense: 2022-09-26)

    The use of Fibre Reinforced Polymers (FRP) composites has grown in popularity over the last few decades. They offer outstanding mechanical properties combined with a low density, making them an excellent solution for many ...

    Aliatges magnètics nanocristal·lins de base ferro i aliatges Heusler: producció i caracterització 

    Carrillo Berlanga, Albert (Date of defense: 2020-01-17)

    This work is focused on the production and characterization of: (1) Fe based nanocrystalline soft magnetic materials of NANOPERM and HITPERM families and (2) Heusler magnetic shape memory alloys. Within the first typology, ...

    Allocation of GHG emissions in a paper mill, an application tool to reduce emissions 

    Aldrich Tomàs, Remei (Date of defense: 2009-04-30)

    El sector de pasta i paper és considerat un dels set sectors industrials més intensius en consum energètic. La producció i consum d'electricitat i de vapor esdevenen les fonts majoritàries d'emissions de gasos d'efecte ...

    Analysis and development of experimental characterization methodologies of mode II fracture toughness on CFRP bonded joints 

    Pérez Galmés, Magdalena (Date of defense: 2018-07-27)

    Adhesives have been shown to be an excellent solution for joining fibre reinforced polymer (FRP) components thanks to their capacity to redistribute loads, reduces stress concentrations and contribute to overall weight ...

    Analysis and optimization of composite stringers 

    Badalló i Cañellas, Pere (Date of defense: 2015-07-17)

    The use of the stiffened panels in the aircraft/aeronautical industry has been growing in the last decades. On the other hand, the exponential growth in the use of composite materials in the last years has had a ...

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

    Falcó Salcines, Olben (Date of defense: 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 (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 ...

    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 ...

    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 ...

    Conductive nanopaper from cellulose nanofibers and conductive polymers and/or carbon nanotubes 

    Lay, Makara (Date of defense: 2017-02-03)

    Coming from renewable and sustainable raw materials, nanocelluloses are rapidly emerging as one of the most promising future materials. Recently, the use of nanocellulose nanocomposites in flexible electrodes, biosensors ...

    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, ...

    Contribución a la comprensión y mejora de los procesos de inyección de resina para la fabricación de componentes aeronáuticos de geometría compleja en composite 

    Ariño Palacín, María (Date of defense: 2022-10-03)

    To overcome the challenges coming from environmental impacts has been a priority for the aeronautical sector in the past years, with a special focus on reducing CO2 emissions. The fibre-reinforced polymers (FRP) are ...

    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 ...

    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 ...

    A contribution to the understanding of compression after impact of composite laminates 

    Liv, Yi (Date of defense: 2017-10-26)

    The threat of impact on laminated composite structures has been a serious concern in the aerospace industry and scientific community because the compression load-carrying capacity of the structures, namely Compression 1/2 After ...

    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, ...

    Data-driven models for building energy efficiency monitoring 

    Massana i Raurich, Joaquim (Date of defense: 2018-02-02)

    Nowadays, energy is absolutely necessary all over the world. Taking into account the advantages that it presents in transport and the needs of homes and industry, energy is transformed into electricity. Bearing in mind ...

    Design and fabrication of three-dimensional scaffolds for breast cancer stem cell expansion and molecular characterization 

    Rabionet Diaz, Marc (Date of defense: 2021-11-08)

    Triple negative breast cancer (TNBC) accounts for 15-20% of the breast cancers and displays an aggressive profile, poor prognosis, high relapse risk and does not have a targeted therapy. In the last years, breast cancer ...

    Development of advanced methods to characterise the fracture behaviour of flexible bonded joints 

    Manterola Najera, Julen (Date of defense: 2020-07-16)

    Advanced joining technologies such as bonded joints play an important role to develop more efficient and durable structures. The present Thesis gives a step forward and proposes different solutions to characterise the ...