Searched for: subject%3A%22compressibility%22
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Ben-Gera, Tal (author)
Compressive membrane action is a phenomenon commonly found in reinforced concrete structures after significant cracking and deformation have taken place. In this thesis report, the potential benefit of CMA in immersed tubes subjected to fires is quantified through a finite element study. Furthermore, sensitivity studies are conducted in order to...
master thesis 2019
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Bauer, Lorijn (author)
Timber structures are experiencing a revelation in the build environment due to new technologies and production techniques. However, the longest spans created with timber structures still don't compete with the span widths of structures made of steel. This thesis provides a preliminary design for the long-span football stadium roof structure of...
master thesis 2019
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Agarwal, Krittika (author)
While the world is advancing with taller structures using engineered wood, little importance is being given to natural wood, which is abundantly available in most regions of the world. The lack of technological research using this material in its natural state has caused a drawback in its usage. Also, the dependence on engineered wood for modern...
master thesis 2019
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Brugman, Stella (author)
The research of this thesis is focussed on the thermal insulation and structural properties of a thin glass composite panel with 3D-printed polymeric core.<br/><br/>Aluminosilicate glass, used in this research, is only 0,5 mm thick. This aluminosilicate can be used to replace current windows and structural façade element to reduce the use of...
master thesis 2019
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Houlder, Michael (author)
Mechanical metamaterials are a new emerging class of materials which achieve properties outside the bounds of conventional materials. A metamaterial consists of a unit cell which is periodically repeated in space. In this study, a new metamaterial unit cell is proposed, derived from a class of space structures known as deployable masts. What...
master thesis 2019
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Gruijthuijsen, Dionne (author)
Energy consumption is still growing worldwide and due to the problems of global warming, sustainable developments become of more importance. Heat pumps are one of the technologies that can contribute to energy savings of industrial processes, for example by heat recovery from waste water streams. The focus of this research is to improve the...
master thesis 2019
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Vergeer, Marieke (author)
Old bridges in the Netherlands are reassessed to prove their structural safety because of the increased traffic loads. The Eurocode model for the shear capacity of prestressed concrete beams with sufficient shear reinforcement was found to be very conservative for small amounts of transverse reinforcement, which is typical for old bridges. Code...
master thesis 2019
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Salters, Ruben (author)
In the industry motion systems with electric motors are used for transporting and positioning thin flexible substrates at high throughput rates. A possible alternative actuation solution could be to apply contactless air film actuators which make use of air bearing principles. The air film actuators use a thin film of air to levitate and propel...
master thesis 2019
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Mateescu, Vlad (author)
Compressive failure mechanisms of fiber reinforced polymers represent a significant challenge when accurately modeling common industrial problems. This thesis aims to deliver a physically representative computational framework capable of simulating Open Hole Compression. A novel approach, the Floating Node Method is adopted for modeling...
master thesis 2019
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van Helvoort, Derron (author)
Additive manufacturing allows material structuring, supporting the fabrication of multiple-level structures or metamaterials. Through the lens of classical stress reduction, nature’s cellular solid structures feature stress-homogenizing nodal topologies. Avian long bones are an example. Research into the mechanics of open cell cellular solids...
master thesis 2019
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van der Eijk, Martin (author)
A substantial part of structural damage for conventional vessels is caused by complex free surface events like slamming, breaking waves and green water. These events lead to the interaction of air and water where air can be entrained in water. The resulting air bubbles can considerably affect the evolution of the pressure caused by hydrodynamic...
master thesis 2018
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Qi, Jinzi (author)
Nowadays, indoor ranging and localization have become necessary in daily life. Due to the multi-path propagation and noise in the indoor environment, phase domain ranging method using multi-frequency has been proposed which achieves accurate estimation of indoor target. However, as the indoor communication is usually carried on Bluetooth Low...
master thesis 2018
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Mirzaei, Farzad (author)
This work introduces an architecture that is capable of reducing the number of cables coming out of an ultrasound receiver ASIC by a substantial factor without dropping the frame-rate. It employs a newly developed technique named compressive sensing to exploit the ultrasound signal redundancies in the spatial domain.<br/>There are 32 receive...
master thesis 2018
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Queroga Caldas, Luiza (author)
Salt caverns formed by solution mining may cause soil subsidence, because the surrounding adapts to fill the void (cavity) created in the strata. The cavern volume is hence not only a function of salt extraction (estimated from mass balance) but also a function of salt creep. The cavern size can be measured by sonar, but a less costly way would...
master thesis 2018
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Guđmundsdóttir, Kristin (author)
The main objective of this study was to develop a quick model for an oil free twin screw compressor. The computational time of the model was to be kept as low as possible so that the model could be used for quick estimations and optimizations of the process. This was done by using a simple geometry focusing on the volume curve and port sizes,...
master thesis 2018
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Lopes Cunha, Max (author)
<br/>This study focuses on the question how the bandwidth utilization of a high-quality video-stream from the Exposure Rendering framework can be minimized. Exposure Render uses a Monte-Carlo based rendering system to render volumetric data. The earliest estimation of lighting show high degrees of noise, leading to grainy images before...
bachelor thesis 2018
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Hamelink, Marc (author)
For the first time in the Netherlands, the construction method top-down cut-and-cover with compressed air will be applied as primary construction method for the construction of two tunnels in deltaic soil conditions. Nowadays a low degree and a short period of disturbance is more and highly valued when it comes to construction methods. Cut-and...
master thesis 2018
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Worp, Janna (author), Tijdgat, Jim (author), Nijman, Rens (author), Backx, Stephan (author)
After the earthquake in 2015 that struck Nepal, students of the Delft University of Technology commenced the multidisciplinary project program “Shock Safe Nepal”. This report describes the effort of the sixth group of students who travelled to Nepal. Following conclusions and specific recommendations of Team 5, the present research has one main...
student report 2018
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Roebroeck, Anne (author)
Vapour Distribution Boxes (VDBs) are used for continuous Physical Vapour Deposition (PVD) coating. The present study shows a Computational Fluid Dynamics (CFD) simulation of Zinc vapour inside a VDB, analyses the lateral Zinc vapour distribution and identifies regions in which phase change is likely to happen.
bachelor thesis 2018
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de Groot, Dennis (author)
An increase in apparent mode II fracture toughness in Fiber Reinforced Polymers has been found from modified Transverse Crack Tension (mTCT) tests with compressive stresses added orthogonal to the delamination plane. Numerical reproduction of these results has not yet led to a good understanding of the reasons for this behavior. Currently, an...
master thesis 2018
Searched for: subject%3A%22compressibility%22
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