Searched for: subject:"Stress"
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Church, Matt (author)
The isostatic slab was developed by Pier Nervi and his colleague Aldo Arcangeli to create an elegant and easy to produce floor system, with efficient use of material. These slabs are designed with ribs aligned to the principal bending stress lines that support a flat deck. Concrete isostatic slabs are no longer constructed due to their expensive...
master thesis 2021
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Zevenbergen, Alex (author)
In 2010, an estimated 15 million infants were born prematurely, which makes up 10% of all childbirths that year. Just in the Netherlands there were 11,530 preterm births in 2018. Since these children should be spending additional months inside of the uterus, they are delicate and need to grow until near regular gestational age inside of an...
master thesis 2020
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van der Meer, Gerben (author)
Hydrodynamic bearings can be used to minimise friction, and their load capacity can be improved by texturing the bearing surfaces. However, due to mechanical contact between the surfaces during start and stop, these textures are susceptible to wear. Previously, a new method of creating textures using magnetorheological fluids as lubricant was...
master thesis 2020
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van der Smagt, Mark (author)
Daily stress is a problem that many people are suffering from. In previous research a prototype was developed to help users to identify their own stressful places and encourage them to conduct self-training exercises in those locations. This prototype is called ‘Grippy’. The goal of this project is to explore what qualities Grippy’s vibration...
master thesis 2020
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Groen, Eva (author)
With a pressure on public space due to a predicted increase of users, the changing climate and a non-supporting existing urban structure with a focus on space for vehicles, there is need for improvement of public space in the neighbourhood Oude Westen in Rotterdam. The research question guiding this design research is:</p><p...
master thesis 2020
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Snel, Koen (author)
The ongoing demand for bigger and more efficient ships pushes their designs towards the strength limits. Sometimes, ship structures are pushed beyond their limits with the possibility of significant negative economic and environmental impact or, in the worst case, impact on human life. This makes it explicitly clear why the development of...
master thesis 2020
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Wijntje Santamaría, R.A. (author)
This graduation project proposes a new critical approach towards the design of drought adaptive interurban forest structures. The increasing drought during the summer is currently neglected in the design (and management) of green structures in the Netherlands. Several studies underpin the importance of taking drought stress in consideration for...
master thesis 2020
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van der Ende, D.J. (author)
An Orthotropic Steel Deck (OSD) is suspectable to fatigue and this forms an important design criterium. In this research the rib-to-crossbeam connection with a cope hole is studied using Finite Element Methods (FEM). The fatigue assessment is performed with the hot spot stress method making use of surface stress extrapolation. Two fatigue cracks...
master thesis 2020
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Pandit, S. (author)
The phenomenon of fatigue in orthotropic steel deck (OSD) bridges is a predominant problem because of complexity of the prediction methods. In the past, many researchers have studied the fatigue behaviour of various details in OSDs via both experiments and Finite Element Modelling (FEM). In the present research, the connection of open stiffener...
master thesis 2020
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Popova, A. (author)
The urbanization process forces the urban fabric to extend higher and be denser. The tendency to build fast and accommodate many people is coming from the rationalistic approach of building stamp neighborhoods. These typologies, unfortunately, are not natural for the people well being in the visual and social sense. Therefore it raises the...
master thesis 2020
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Schouten, Matthijs (author)
As collisions between aircraft and birds happen many thousands of times every year, all aspects of such impact events need to be taken into account in the process of designing an aircraft. One aspect that poses a risk is caused by the vibrations induced during bird impact. These vibrations are propagated through the aircraft structure by stress...
master thesis 2020
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Boogaart, Lukas (author)
The yearly installed percentage of offshore wind jacket substructures is rising. The most common installation method for a jacket structure nowadays starts by driving the foundation piles in the seabed through a pre-piling template. The jacket is then lowered on top until the legs are resting on the foundation piles through friction-based...
master thesis 2020
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Meijer, I.D. (author), Morssink, B.J.C. (author)
There are many different studies that try to use physiological features to determine stress. But there exists a lot of uncertainty about which physiological signals and features are the best classifiers and a lot of discrepancies in classification accuracies exist. This study proposes a novel method for the detection of stress. This method contains...
bachelor thesis 2020
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Bereket, Mert (author)
Sleep is a vital restoration mechanism for our health and well-being. Deficiency in sleep can cause physical and mental health problems and reduced quality of life. How well we sleep is closely related to our behavior, and day to day stress can immensely influence sleep quality. Sound and music, on the other hand, is a powerful way to influence...
master thesis 2020
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Mercimek, Y. (author), Meppelink, G.J. (author)
This study proposes a system for constant monitoring of ECG and respiration signals using a wearable. The proposed system uses capacitively-coupled electrodes for the measuring of the ECG-signal and a resistive strain sensor for the measuring of the respiration signal. The system applies the strain sensor to the abdomen of a patient, and...
bachelor thesis 2020
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Dias Fahmi Fajrin, Dias (author)
As the world’s population continues to increase, the demand for energy also increases. However, the use of fossil fuel energy has resulted in disadvantageous impacts for humans and the Earth. This condition becomes a good momentum to find a clean and more sustainable energy resources, given the fact that fossil fuel energy is a non-renewable...
master thesis 2020
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van Sliedregt, Duncan (author)
Io is Jupiter's innermost Galilean satellite and the most volcanically active body in the Solar System. Its volcanism is driven by tidal heating generated by its interaction with Jupiter and maintained by other Galilean satellites. The tidal forces acting on Io also cause significant stresses on its interior. It is investigated if tensional...
master thesis 2020
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van den Berg, Niels (author)
Orthotropic steel decks (OSDs) are susceptible to fatigue failure due to cyclic loading by heavy traffic passing the deck. These cyclic loads can cause fatigue cracks in the rib-to-deck joint. In and around the joint residual stresses are present due to the welding process. In this thesis, the effects of residual stresses on the fatigue crack...
master thesis 2020
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Neiva Volpini, Henrique (author)
<br/>To date, many fire accidents have occurred in tunnels all over the world. In the worst cases, there were catastrophic consequences with numerous human casualties and significant economic impacts. In the occurrence of such tunnel fires, besides the primary concern of saving human life, ensuring a certain level of structural integrity is also...
master thesis 2020
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van Bokhorst, Jochem (author)
When hardening concrete is subjected to imposed deformations, stresses maydevelop. If at any point in time this stress exceeds the tensile strength ofthe material, the concrete will crack. Early-age cracking of concretestructures may lead to issues related to durability, serviceability and aesthetics.During hardening of...
master thesis 2020
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