Searched for: subject%3A%22Quasi%255C+Static%22
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Hashemi, L. (author)
The demand for sustainable and clean energy sources has become increasingly vital in addressing the challenges of climate change and energy security. Hydrogen, with its high energy density and potential for carbon-free energy conversion, has emerged as a promising candidate for future energy systems. Efficient storage and retrieval of hydrogen...
doctoral thesis 2024
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van Dokkum, J.S. (author)
Inelastic deformation is a common but often neglected phenomenon in experimental analysis of metal deformation and in contacts. This neglect leads to degraded measurement accuracy of material properties. Therefore a need arises for material models that a priori incorporate inelasticity. These material models must be simple and comprehensive to...
doctoral thesis 2023
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Sijmons, Kasper (author)
During this research, a new approach to predict impact damage was evaluated using the PAL-V Liberty’s propeller blade as the test subject. The purpose of this research was to provide a simple method for impact damage prediction which will support the certification activities of the PAL-V propeller.<br/>This method involves conducting a threat...
master thesis 2023
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Bracelly, Fernão (author)
Quadrupedal robots possess the ability to move freely in the world and perform a variety of actions that would be unsafe or impractical for humans to perform. In the SNOW project, a quadrupedal robot is tasked with aiding firefighters in rescue missions during house fires by locating humans and assessing their health. Pushing away obstacles that...
master thesis 2023
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Stokman, Charlotte (author)
The energy market is growing and noise regulations for offshore foundation pile installation grow stricter. New initiatives arise to comply with the ongoing developments in the field, such as the BLUE Piling Technology under development by IQIP. Its features are presented as reduced underwater noise levels during installation, which is attibuted...
master thesis 2023
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Ronæs, Endre (author)
This report presents two different methods for controlling the remnant magnetisation state of a permanent magnet within a Hybrid Tunable Magnet Actuator. Addressing, individually, the desire for optimum energy efficiency and control accuracy. The purpose of this actuator is to track a quasi-static position reference without continuous thermal...
master thesis 2023
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Ronaes, E.P. (author), Hunt, A. (author), Hassan HosseinNia, S. (author)
The recent development of a hybrid tunable magnet actuator proposes to eliminate Joule heating when maintaining a force or position offset. By controlling the remnant magnetic flux in an AlNiCo magnet within the actuator, the actuation force can be linearly varied and maintained. While a method for tuning the magnetisation state of the magnet...
journal article 2023
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van Dam, Nadine (author), Jonker, Mees (author)
Unmanned underwater vehicles benefit from communication with a high data rate on relatively small distances (under 100 m). Existing communication methods are not able to provide this or present other shortcomings. Therefore, this bachelor end project focuses on a new type of underwater communication, quasi-static electric field communication....
bachelor thesis 2022
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Makinwa, Soji (author), van der Laan, David (author)
In this report the analysis of underwater communication using electric quasi-static fields is undertaken, in which key aspects that influence the performance the communication between a transmitting and receiving electrode is examined. A mathematical model was proposed for the transmission and reception of the quasistatic field and the expected...
bachelor thesis 2022
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van Mourik, Floris (author), Onstein, Teije (author)
As electromagnetic waves cannot propagate sufficiently far in water, underwater communication is mainly performed using either acoustics or optics. However, none of these technologies have been proven to be completely effective in every situation. Therefore, research in new underwater communication systems can still bring large benefits to a...
bachelor thesis 2022
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Shakibanezhad, R. (author), Sadighi, M. (author), Hedayati, R. (author)
Study of porous materials, in particular closed-cell foams, has always attracted researchers’ interest due to the advantages these materials offer in applications where low weight, buoyancy, insulation, or energy absorption is of importance. In this study, quasi-static compressive experimental tests are conducted for low-, medium-, and high...
journal article 2022
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Alimirzaei, Sajad (author), Najafabadi, Mehdi Ahmadi (author), Nikbakht, Ali (author), Pahlavan, Lotfollah (author)
The focus of this study is to investigate the mechanical properties, of ±35° and ±55° filament wound (FW) composite tubes under axial compression loading using the acoustic emission technique. For this purpose, material failure, crashworthiness characteristics, and the effect of each mechanism on the energy absorption capacity were studied...
journal article 2022
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Huo, L. (author), Kassapoglou, C. (author), Alderliesten, R.C. (author)
To develop a simplified and physically sound delamination-failure criterion, this paper reports a joint experimental and numerical study in which out-of-plane quasi-static indentations with different indentation forces were applied to the centre of fully clamped rectangular carbon fibre-reinforced polymer (CFRP) laminates. The results show that...
journal article 2022
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Hendrix, Emile (author)
Ventilation events are the result of masses of air being transported from the water surface along the hull, through the propeller plane. Previous research in literature has shown that ventilation induces large and sudden variations of the load on the propeller. The response of the propulsion system had not been documented before. This is a...
master thesis 2020
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den Ouden, Hajo (author)
The relation between planar delamination growth, induced by transverse quasi-static load case, and the coupon delamination validation tests was investigated by evaluating the delamination criteria. The delamination criterion that allowed to describe planar delamination growth was the strain energy density criterion. An analytical study was...
master thesis 2020
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Messali, F. (author), Esposito, R. (author), Ravenshorst, G.J.P. (author), Rots, J.G. (author)
The material and structural performance of calcium silicate (CS) brick masonry has received relatively little attention in the past, although this material is often used for the construction of low-rise buildings in Central and Northern Europe. Upon the occurrence of induced seismicity in the north of the Netherlands, an extensive testing...
journal article 2020
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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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Esposito, R. (author), Messali, F. (author), Ravenshorst, G.J.P. (author), Schipper, H.R. (author), Rots, J.G. (author)
The exploitation of geo-resources in the northern part of the Netherlands (Groningen region) is triggering shallow earthquakes, rising the need of assessing the current building stock. Being the region not prone to tectonic earthquakes, buildings are designed as wind-resistant systems and have specific characteristics that can limit their...
journal article 2019
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Simons, E.C. (author), Weerheijm, J. (author), Sluys, Lambertus J. (author)
Plasticity models are frequently used to describe ceramic materials. Well established and often used ceramic models are those by Johnson and Holmquist. These are softening plasticity models for which mesh dependency is a well known problem. A viscosity or rate dependency can be added to the material model to provide regularization and solve...
journal article 2018
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Bobeldijk, Mark (author)
In general, damage models for Fibre-Reinforced Polymers (FRPs) can be divided into two categories: Continuum Damage Models (CDMs) and Fracture Mechanics Damage Models (FMDMs). Damage models within each of these categories are advantageous for different type of failure mechanisms. Therefore, it is of interest to develop a unified framework in...
master thesis 2018
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