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Hermans, Tim (author)Glacial isostatic adjustment is the viscoelastic response of the Earth to ice and ocean loads. In forward models of glacial isostatic adjustment, mantle viscosity is often assumed to be laterally homogeneous. However, a lateral transition in shear wave velocities suggests a sharp transition in viscosity between West and East Antarctica. Along...master thesis 2017
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De Lazzari, Elena (author)Generalized finite element methods have proved a great potential in the mesh-independent modeling of both weak and strong discontinuities, such as the ones encountered when treating materials with inclusions or cracks. By removing the constraint of a conforming mesh, more freedom is offered to modeling exact geometries by means of splines....master thesis 2017
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Mendoza Espinosa, Jorge (author)Jacket support structures are a preferred solution for offshore wind turbines in deeper waters. Extensive knowledge exists in relation to its construction technique as well as its crucial components, but due to considerable cost pressure, continued optimization is essential for the future competitiveness of the concept in the offshore wind...master thesis 2017
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Dik, Inge (author)Soil-mix walls are subsoil walls, which are constructed by in situ mixing of soil<br/>with cement and water. The technique was initially used as a ground improvement<br/>technique and is now being developed as construction method for walls<br/>with a structural purpose. Currently these walls are reinforced with large steel<br/>profiles, which...master thesis 2017
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Slagmolen, Mark (author)Digital image correlation (DIC) is a surface measurement technique that can be applied whilst performing experimental tests. At Delft University of Technology, a fatigue test is to be conducted and DIC will be used to measure surface displacements around the developing crack. These surface displacements are directly related to the crack geometry...master thesis 2017
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Hassan, USMAN (author)Over the years, the use of PM machines has been increasing in the offshore wind industry and marine industry. The industries thrive on efficient function of the PM machines. These machines are prone to electro-mechanical faults due to environmental conditions and maintenance. Out of all these faults, stator internal faults are concerning as they...master thesis 2017
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kunst, David (author)Areas are getting more and more populated causing new infrastructure lines to be constructed below the surface. A bored tunnel is one of the possibilities to create this subsurface infrastructure, but the construction process of a bored tunnel is a complicated one. Many loads and aspects are present in this construction process that can be...master thesis 2017
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Puzio, Tomek (author)Fibre Metal Laminates (FML) are hybrid composites, with the attempt to combine the advantages of metals and fibre reinforced plastics. Their promising properties are used locally in joining areas to reduce the structural weight. As the metal foils density, in this case a steel alloy, is much higher than the density of carbon plies, its amount...master thesis 2017
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Swierstra, E.P. (author)For the fatigue assessment of welded structures, several design methods are described by the design codes of IIW, Eurocode3 and DNV. The relation between the stress range and cycles to failures were derived from experiments: the SN curves. With the increased accessibility of finite element software to engineers, a more flexible approach emerged:...master thesis 2017
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van Egeraat, Hugo (author)Traditionally, steel joints are calculated by the calculation rules described in the Eurocode 3: NEN-EN 1993-1-8. Effective lengths are important parameters to determine the different resistances of the components in the steel joint. Finite Element Analyses (FEA)...master thesis 2017
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Janssens, Steven (author)The complex mechanical behaviour of timber makes it hard to predict the failure modes in connections made of timber in Finite Element Models (FEM). The combination of various failure modes (brittle and ductile) , anisotropic behaviour, contact of steel elements and large deformations that can occur in a timber joint challenges the use of FEM. To...master thesis 2017
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Righi, R. (author)In order to use composite materials in automotive production while ensuring that passengers safety it is crucial to fully understand the strain rate effect on their mechanical properties.This study implements a strain rate dependent 3-point bending test setup for a high rate servo-hydraulic testing machine. A finite element model to simulate...master thesis 2017
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Scholten, T.C. (author)Topology optimization is widely used within the academic environment. It is however not yet a standard design tool within the commercial industry. My research aims to shorten this gap by applying a topology optimization for an industrial design load. The design load is from a Printed Circuit Assembly (PCA) that requires active cooling in order...master thesis 2017
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Aukselis, A. (author)The Groningen region, in the Netherlands, experiences earthquakes since 1986. These earthquakes are new to the region and the structures built there are not designed for it. Therefore, they pose a great risk for the historical structures and people living in the area. Most of the buildings there are built using masonry and to analyze such...master thesis 2017
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Huiskes, S.W.G. (author)Heerema Marine Contractors is an offshore contractor who specializes in the installation and removal of a range of offshore facilities. This includes the installation of submarine pipelines in excess of 1500 [m] water depth. Higher water depths drive the pipeline designs to increase wall thickness. Another motive to apply a low D/t ratio is to...master thesis 2016
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Korswagen Eguren, P.A. (author)The possibility of multi-hazards, the occurrence of two or more (natural) hazards at once or shortly after another in the same location, can lead to an increased risk of structural damage and life loss. In the Netherlands, seismically-unprepared houses are especially vulnerable to newly expected earthquakes in the region of Groningen. These...master thesis 2016
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Tsigkris, E. (author)The wind energy industry in order to find stronger winds, has to go further offshore and move into deeper waters where bottom founded wind turbines cannot be deployed anymore. This is the main reason why floating wind turbines have been studied extensively in the past years. In the case of regions with cold climates, ice loads become significant...master thesis 2016
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Meulman, E. (author)In the last decades induced earthquakes are taking place more frequently in Groningen. This is due to gas extraction form the soil. Buildings are damaged by the earthquakes and building collapse is possible in the near future. Houses in Groningen are commonly build up out of single leaf masonry cavity walls and are not designed for earthquake...master thesis 2016
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Van Wolfswinkel, G. (author)Introduction. Aseptic loosening is indicated as the main cause of knee implant failure. Despite all currently used techniques, it remains challenging to diagnose an aseptic loose knee implant. A promising technique to reveal aseptic loose related implant motions is inducible displacement (ID). ID measurements are used to detect implant motion...master thesis 2016
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Ragupathy, A.P. (author)Accurate thermal characterisation of composite structures can help structural designers in predicting thermal paths in a spacecraft structure and assessing the effect of modifying materials on the structure’s overall thermal performance. Existing spacecraft thermal analysis software lack the ability to model anisotropic thermal properties of...master thesis 2016