Searched for: subject:"Buckling"
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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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van Delft, Vincent (author)
For the design of a steel sheet pile, verification checks should be done on multiple failure mechanisms. One of the failure mechanisms which should be checked is the check on global buckling. This is a mechanism in which the deformation of the pile is enlarged due to the normal or vertical force. With the enlargement of the sheet pile, the soil...
master thesis 2020
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Baciu, Theodor (author)
So far thermoset based composites have been used in primary aircraft structures, owing to their good performance and vast research on the subject. Recently thermoplastic based composites also gained an increased attention and there is a push towards adopting these for primary aircraft structures as well. This interest for thermoplastic...
master thesis 2020
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Urcelay Oca, Iñigo (author)
Delamination is an important damage mechanism in composite materials. A correct prediction of its behaviour is of great importance in the design of aerospace composite structures. Nevertheless, when using simple numerical models which do not account for the delamination migrating to other interfaces or other intralaminar damage mechanisms, the...
master thesis 2020
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Peponis, Stathis (author)
In the last decade, maintenance and adaptive reuse, of the existing building stock, have gained ground in the construction sector. For the adaptive reuse of a building, it is required to analyze, meticulously, the existing structure. Unreinforced masonry structures are indicative of the Dutch built environment. For the assessment of their...
master thesis 2020
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Jansen, Johan (author)
When designing a construction pit adjacent to a navigation channel, the event of a ship colliding with the structure is something to take into account in the design of the pit. However, several aspects regarding ship collisions, i.e. the probability of occurrence of a collision, the magnitude of the collision force and the influence on the...
master thesis 2019
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Vidwans, Aditya (author)
In steel structures, a lot of attention is paid to lightweight structure, i.e. reduction of dead load without compromising structural safety, integrity and performance as well as cost-effectiveness. Thanks to modern steel aluminium sandwich panel manufacturing technology a new possibility became available for lightweight structural design.The...
master thesis 2019
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Verhoog, Thomas (author)
In this research project, an attempt is made to fuse the fields of structural mechanics and machine learning. The goal is to find out if models can be created that are capable of predicting the outcomes of (nonlinear) finite element analyses. These models are created by means of Artificial Neural Networks, which is a powerful method in the...
master thesis 2019
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Eberlein, David (author)
Guidelines dating back 50 years, NASA SP-8007, are employed today in the design of thin-walled launch vehicle structures. Due to advances in materials, structural designs, and manufacturing techniques since the publication of SP-8007, the development of new knockdown factors for contemporary launch vehicle structures is an ongoing subject of...
master thesis 2019
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de Jong, Sebas (author)
The main focus of this thesis is the influence of different real boundary conditions on the failure mechanism of local buckling of steel tubular piles. The research was started with the theoretical method of describing boundary condition by specifying the degrees of freedom per boundary condition. The method makes use of the radial, meridional...
master thesis 2019
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Mohamed Gomaa Abdulfattah Tolba, Mohamed (author)
The use of fiber-reinforced composites in the aerospace industry has increased over the past couple of decades thanks to their high specific properties. Fiber-reinforced composites also enable engineers to tailor the stacking sequence to satisfy the required stiffness or strength requirements. However, locally optimizing the stacking sequence of...
master thesis 2019
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Verhelst, Hugo (author)
With increasing attention to climate change,renewable energy generation has become a major topic for research anddevelopment. Wind and solar energy are generated on land, whereas wave, windand tidal energy generators are getting attention in the offshore domain. Anovel extension of onshore solar energy is the concept of...
master thesis 2019
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Bresser, Djonno (author)
In the past decades, great progress has been made in analyzing lateral torsional buckling of slender beams. The phenomena has been accurately described by differential equations, closed form solutions are available for specific cases and the solution for any load and any boundary condition can be obtained by finite element analysis. Timber and...
student report 2019
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van Gemeren, Wouter (author)
A parametric study, using the FEM-software package ABAQUS, validated on experimental results found by Abspoel, was conducted on S690 steel plate girders to address if the results of the previous researches was valid. Using a slightly different analytical model the results show the maximum web slenderness of this steel grade in both 6000 mm2 and...
master thesis 2019
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Hosseini, Sajjad (author)
The Ampelmann system uses a motionless transfer deck on a host vessel to transfer personnel and equipment between the vessel and offshore structures very safely even in very harsh environment. The Ampelmann system consists of a transfer deck which is mounted on a hexapod and a gangway. The hexapod is a so-called Steward platform which...
master thesis 2018
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Kaskovitš, Anna (author)
The increasing use of Fibre Reinforced Polymers produced by Vacuum Assisted Resin Transfer Molding in civil infrastructure applications leads to the need for an appropriate research data. The VARTM produced structural elements are not limited in dimensions and material properties and typically are slender structures parts of which are...
master thesis 2018
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Wildvank, Roy (author)
Accurate dry mass prediction is essential in early design phases of a launch system. To predict structural mass<br/>of a launch vehicle more accurate at a conceptual design phase, a structural mass model was developed. The model<br/>predicts a launch vehicle’s structural mass, thickness, center of mass and mass moment of inertia. Load carrying...
master thesis 2018
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Jansen, Jasper (author)
The S-lay pipeline installation method is characterised by its fast installation process and its application in all water depths. Offshore standards and design codes provide local buckling checks for combined loading criteria for load controlled and displacement controlled conditions, where a load controlled condition is defined as a case in...
master thesis 2018
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de Ronde, Remko (author)
Future wind turbines require larger rotor blade radius, leading to an increase of rotor swept area. The larger rotor swept area results in more energy production of the wind turbine. Further increase is however limited as a result of the structural weight, which induces a large bending moment and could result in buckling of the rotor blade. An...
master thesis 2018
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van der Helm, Jonathan (author)
An enhanced methodology is proposed to include both the loading and the resistance of the upper stem (pipeline) in 18" ILT installation. Loading behavior and buckling capacity have been investigated. The upper stem behaves quasi-statically for all HMC projects, this corresponds to the current method of applying maximum found loads statically....
master thesis 2018
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