Enviaments recents

Operational conditions and modelling of backwashing in pressurised porous media filters 

Graciano-Uribe, Jonathan (Data de defensa: 2025-10-01)

ENG- Pressurised sand filters are widely used in drip irrigation systems to ensure water quality by retaining suspended particles, thereby preventing emitter clogging. One of the main operational challenges of these systems ...

Notched strength and size effect in pseudo-ductile composite laminates 

Subramani, Anbazhagan (Data de defensa: 2024-04-04)

ENG- Composite materials are favoured in aviation and automotive industries for their lightweight properties. However, their tendency to brittle failure poses challenges. The advent of thin-ply laminates, with improved ...

A strategy for efficient modelling of composite delamination in large structures 

Daniel, Pierre M. (Data de defensa: 2025-04-28)

ENG- Delamination, the separation of composite laminate layers, is a major issue in industries using fibre-reinforced polymers, such as airliners, automobiles and wind turbines. While existing numerical models can accurately ...

Integrated strategies for improved bioresorbable stents with silk: characterization, fabrication, and composite integration 

Casanova Batlle, Enric (Data de defensa: 2025-01-27)

ENG- This doctoral thesis explores the creation of next-generation bioresorbable stents (BRS) using an advanced manufacturing technology known as Direct Ink Writing (DIW). This technique enables the printing of a wide ...

Analysis of the fracture properties of additively manufactured carbon fiber reinforced thermoplastic composites 

Santos, Jonnathan D. (Data de defensa: 2024-11-28)

ENG- The primary objective of this thesis was to experimentally determine the elastic in-plane mechanical properties and interlaminar fracture toughness in modes I and II of Markforged® continuous Carbon Fiber reinforced ...

Novel methodology for predicting delamination in 3D composite structures under multiple loading conditions and large process zones 

Leciñana Arregui, Iñaki (Data de defensa: 2024-11-07)

ENG- The overall objective of this thesis is to provide a tool for predicting delamination in composite materials under different static and fatigue loading conditions in 3D structures. The methodology is intended to be a ...

Study of debonding in CFRP-strengthened beams and contribution of anchorage systems 

Codina Le Boudal, Alba (Data de defensa: 2024-07-16)

The rehabilitation of buildings and infrastructure has gained importance in recent decades. Carbon Fiber-Reinforced Polymers (CFRP) are effective for strengthening Reinforced Concrete (RC) structures due to their mechanical ...

Development of constitutive models for the accurate simulation of advanced polymer-based composites under complex loading states 

Ruiz Cózar, Ivan (Data de defensa: 2024-06-14)

In recent decades, several meso-scale computational models have been developed for predicting the failure evolution and strength of composite materials. Nevertheless, the complex failure mechanisms of composites pose a ...

High-volume manufacturing of advanced composite parts: reducing waste and curing time while maintaining high performance 

González Ruiz, Jose Antonio (Data de defensa: 2024-05-27)

Historically, the manufacture of advanced composite parts has been characterised by low-volume production, but is increasingly moving towards mass production. This new scenario, where competitiveness is on the rise, requires ...

On the generation of design allowables of composite coupons accounting for defects using a multi-fidelity approach 

Vallmajó Martín, Oriol (Data de defensa: 2024-04-12)

Composite structures play a crucial role in lightweight applications due to their exceptional mechanical performance and low density. However, their anisotropic behavior and susceptibility to uncertainties, such as ...

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 ...

New approaches for the study and treatment of aggressive cancers 

Polonio Alcalá, Emma (Data de defensa: 2023-05-17)

Although there are therapies for triple negative breast cancer (TNBC) and epidermal growth factor-mutated non-small cell lung cancer (EGFRm NSCLC), these two subtypes of cancer are very aggressive, and most patients develop ...

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 ...

Methodology for the experimental characterisation of mode I delamination under different loading rates 

Medina Escobar, Sergio Alonso (Data de defensa: 2022-11-25)

The rate-dependent behaviour of the interlaminar fracture toughness of fibre reinforced composites has been a matter of research during the last decades. However, the results obtained so far are not conclusive and further ...

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

Jahani, Younes (Data de defensa: 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 ...

Emissions reduction potential by coupling a thermoelectric generator to an exhaust heater in heavy duty vehicles 

Ximinis Tarrés, Joan (Data de defensa: 2022-09-07)

First part of this research is focused in validating the Exhaust Gas Heater (EGH) viability in reducing NOx emissions without negative effects in a standard exhaust gas circuit. Experimentation was held using a HDV Euro ...

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

Rabionet Diaz, Marc (Data de defensa: 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 ...

Predicción de la fatiga de disipadores de energía elastoplásticos para estructuras sismorresistentes 

Simon Madrenas, Enric (Data de defensa: 2021-11-17)

Elastoplastic energy dissipators are used in earthquake-resistant design in order to dissipate a substantial part of the seismic energy acting on a building. They are elements that are not part of the load-bearing structure ...

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

Gómez Colom, Javier (Data de defensa: 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 ...

L'Eixample Malagrida d'Olot: urbanisme i arquitectura a la Catalunya-ciutat-jardí 

Vergés Tejero, Arnau (Data de defensa: 2021-03-12)

THE GARDEN CITY. This is the name under which Eixample Malagrida (the extension district) of the city of Olot is known; this is what it was called in the only plans available to us of the project that was born in the middle ...