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 ...

    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 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 ...

    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, ...

    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 ...

    Development of efficient numerical models for the simulation of low velocity impact and compression after impact on composite structures 

    Soto Masip, Albert (Date of defense: 2018-09-07)

    Fiber reinforced composite materials are nowadays used in several industrial applications that pursue structural weight reduction to reduce fuel consumption. The stiffness-to-weight and strength-to-weight ratios of composite ...

    Development of efficient testing methods and cohesive zone models for analyzing fatigue-driven delamination in 3D laminated composite structures 

    Carreras Blasco, Laura (Date of defense: 2019-07-17)

    The overall purpose of this Ph.D. thesis is to contribute to the reliable design of composite structures subjected to fatigue-driven delamination. The aim is motivated by a wish to reduce the amount of experimental testing ...

    Effect of pre-bond moisture on the static and fatigue behaviour of bonded joints between CFRP laminates for structural repairs 

    Budhe, Sandip Rudha (Date of defense: 2014-07-24)

    In recent years, the use of composite materials in the aeronautic, automotive, marine construction, etc. has increased significantly. Hence, there is an increasing need for repair technologies on primary structural components, ...

    Effect of temperature on the flexural behavior of NSM CFRP strengthened RC beams under time-dependent loading and fatigue 

    Jahani, Younes (Date of defense: 2022-11-11)

    There is a general trend towards rehabilitation and strengthening of existing reinforced concrete (RC) structures due to the costs associated with the replacement of the structural members and the environmental impact ...

    Estudio de la influencia de los factores ambientales en el comportamiento de la unión adhesiva entre hormigón y barras FRP NSM 

    Duran Sureda, Imma (Date of defense: 2021-05-11)

    NSM strengthening technique under the influence of temperature and relative humidity, in which the interaction between materials involved is analyzed, is studied in this PhD. Therefore, this work is aimed at contributing ...

    Experimental and analytical study of delamination caused by free-edges and matrix cracks in laminated composites 

    Zubillaga Eceiza, Lierni (Date of defense: 2014-07-11)

    In the last decades, the use of laminated composites, such as Carbon Fiber Reinforce Polymer has increased in many industrial sectors. Different failure mechanisms different damage mechanism can appear in laminated ...

    Improving compression after impact response of composite laminates through ply level hybridization with thin plies and unsymmetrical designs 

    Sasikumar, Aravind (Date of defense: 2019-07-18)

    Despite the weight savings, composite materials are vulnerable to impact loads mainly due to the alarming reduction in the compression after impact strength (CAI). This thesis exploits the potential of laminate designs ...