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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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ul-Haq, Ehshan (author)This master’s thesis focuses on the design and assembly of an innovative tow spreading line for investigating carbon fiber tow spreading through the utilization of spreader bars. The primary objective was to examine the friction behavior during the spreading process by employing multiple tension sensors. Additionally, novel monitoring concepts...master thesis 2023
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van der Starre, Thom (author)Hall spars, a leading innovator in the composite mast-building industry with a long history of successful projects, provided a challenge which is the inspiration of this thesis. This thesis aims to contribute to the challenge: Joining techniques for the internal bonding of carbon fibre-reinforced polymer components into carbon fibre-reinforced...master thesis 2023
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Valero Romero, M.J. (author), García-Mateos, F. J. (author), Kapteijn, F. (author), Rodríguez-Mirasol, J. (author), Cordero, T. (author)Cobalt-containing lignin-based fibers were synthesized in one step by electrospinning of Alcell lignin solutions as carbon precursor, a low-cost and renewable co-product of the paper making industry. The lignin fibers were thermostabilized in air to avoid the fusion during the carbonization process between 500 and 800 °C to obtain cobalt...journal article 2023
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Ye, Xiangqian (author), Xiao, Zhenyong (author), He, Chuang (author), Li, Wenyu (author), Lin, P. (author), Meng, Yuanyuan (author), Hu, Chichun (author)This study systematically investigated the potential of waste carbon fibers (WCFs) as a sustainable solution in enhancing the multiple induction heating healing of asphalt mixture, thereby tackling two major concerns: the environmental impact of WCFs and the durability of asphalt pavement. Firstly, four groups of asphalt binder samples with...journal article 2023
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Teixidó, Helena (author), Broggi, G.C. (author), Caglar, Baris (author), Michaud, Véronique (author)We propose a methodology to monitor the progressive saturation of a non-translucent unidirectional carbon fabric stack through its thickness by means of X-ray radiography and extract the dynamic saturation curves using image analysis. Four constant flow rate injections with increasing flow speed were carried out. These were simulated by a...journal article 2023
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Blommert, Yannick (author)Laser-assisted automated fiber placement (LAFP) is a promising additive manufacturing technique for the production of large aerospace components. Thermoplastic prepreg tapes will be placed ply-by-ply on top of a mould and in-situ consolidated. This is beneficial for higher production rates. The mechanical performance of thermoplastic composite...master thesis 2022
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Bussink, Tom (author)L-AFP is able to place composite tapes in very precise directions, thereby allowing tailored stiffness designs. The laser is used to heat the thermoplastic matrix material to temperatures above its melting point. CF/PEEK is a popular choice for aerospace grade structures due to the high structural performance and high glass transition and...master thesis 2021
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Saeedifar, M. (author), Saleh, M. (author), El-Dessouky, Hassan M. (author), Teixeira De Freitas, S. (author), Zarouchas, D. (author)This study is devoted to the damage characterization of Non-Crimp Fabric (NCF), 2D plain-woven (2D-PW) and 3D orthogonal plain-woven (ORT-PW) carbon/epoxy laminates, subjected to compression after multiple-impact loading, using Acoustic Emission (AE). The ultrasonic C-scan images showed that the interlaminar damage area induced by the single and...journal article 2020
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Dhondt, Mariska (author)Mass reduction is one of the main drivers for aircraft design. A big potential for saving mass can be found in part joining. Currently, most parts are joined by mechanical fastening. However, mechanical fastening requires labor intensive work and results in a weight increase especially for composite parts that, due to the mass saving they allow,...master thesis 2020
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Baldassarre, Alessandro (author), Ocampo, Juan (author), Martinez, Marcias (author), Rans, C.D. (author)The application of strain gauges as recommended by the ASTM standards provides accurate strain measurements in isotropic materials. However, their use in composite materials becomes more challenging due to their anisotropic nature. In this study, we hypothesized that the use of the distributed sensing system and the three-dimensional digital...journal article 2020
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Huisman, Niek (author)The goal of this research is to optimize the fiber layup of a carbon windsurfing boom for weight and stiffness. A windsurfing boom should be stiff to provide an efficient basis for the energy transfer from the sail through the surfer to the board. The weight of the boom is important as the total weight of the rig influences the performance,...master thesis 2019
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Tas, Jesse (author)This project focusses on the creation of a hydrofoil specifically for the windsurfing market. The assigment was created for PWsurfsport. PWsurfsport is a windsurfing company based in Leiden. The company has two subsidiary companies called Tribal and KA. Sails. Tribal produces windsurfing fins and KA produces windsurf sails. Tribal wanted to add...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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Kienhuis, Hatto (author)This paper gives an insight in strategies for implementing, processing and producing Miscanthus x Giganteus, or Elephant grass as it is mistakenly called, on a mid-large scale in the Parkstad Region. The area is rooted in agriculture because of fertile löss soil. There have always been a tight bond between the villages and surrounding land. This...master thesis 2019
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Lavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)In the context of lightweight structure design for the transportation and robotics industries, new types of composite structures are being developed, in the form of trusses made of fiber-reinforced polymer composite members of small diameter. The main objective of this work is to study adhesive joints, bonding pultruded composite tubes inside...conference paper 2018
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Sothmann, Julia (author)The development and production of carbon fiber reinforced plastic (CFRP) exterior parts with Class-A surface finish in the automotive industry comes with challenges. Next to the structural design of the components, the surface quality as well as the joining technique to the body-in-white and the Mercedes-AMG specific factory integration into the...master thesis 2017
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Selvanarayanan, Hari Kumar (author)The application of fibre reinforced thermoplastic composites in aerospace industry has increased drastically in the last decade. Carbon fibre/Polyether-ether-ketone (C/PEEK) is one of the high-performance thermoplastic composites and is replacing metallic and thermosetting counterparts in various aircrafts components. Parts made from such...master thesis 2017
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Lavalette, N. (author), Bergsma, O.K. (author), Zarouchas, D. (author), Benedictus, R. (author)In the context of lightweight structure design for the transportation and robotics industries, new types of composite structures are being developed, in the form of trusses made of fiber-reinforced polymer composite members of small diameter (a few millimeters thick at most). Some concepts of wound trusses can be found in the literature, but...journal article 2017
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van der Klift, Frank (author)In order to save weight and reduce the impact on the environment, the aerospace industry keeps searching for strong and lightweight materials to reduce fuel consumption. A relatively new manufacturing technique made it possible to print nylon, reinforced with continuous unidirectional carbon fibres on a layer-by-layer basis and praised itself...master thesis 2017
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