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- Liu, Frankie (author) master thesis 2022
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Adams, Maarten (author)Fiber Reinforced Composite (FRC) materials are gaining great popularity in marine structures because of their excellent strength-to-weight ratio, low density, and provided freedom in the design process. However, the use of FRC materials comes along with relatively large uncertainties in material properties and structural integrity after...master thesis 2022
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Tao, N. (author), Anisimov, A. (author), Groves, R.M. (author)Thick composite materials are commonly used as load-bearing structures in marine applications. Developing a suitable and sophisticated non-destructive testing (NDT) method for thick composites is an urgent challenge to improve the safety, reliability and maintenance of these structures. Digital shearography has become an important NDT...journal article 2022
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Tao, N. (author), Anisimov, A. (author), Groves, R.M. (author)This study aims at improving shearography non-destructive testing (NDT) of deep defects in thick composites with thermal loading. Instead of conventional global heating (GH), the core idea is to apply novel spatially modulated heating (SMH) for shearography NDT. In this paper, the finite element method (FEM) has been used to advance...journal article 2022
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Heller, Martijn (author)The accurate estimation of the pose, i.e. position and heading, of a vehicle while driving is of high importance in autonomous driving applications. Right now the main tool to estimate the location of a vehicle is its GPS sensor. However, GPS data is known to be of very low accuracy, especially in urban environments, and is thus not ideal for...master thesis 2021
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Droździel, Magda (author), Podolak, Piotr (author), Nardi, D. (author), Jakubczak, Patryk (author)Fibre metal laminates (FML) are hybrid materials perspective for wind-turbine, containers and marine objects, besides the aerospace industry. During the manufacturing process some faults can occur and can be hazardous for the reliability of FML structures. One of the most critical defects are kissing bonding due to their lack of detectability...journal article 2021
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Gierens, Lena (author)During their service live reinforced and prestressed concrete structures experience deterioration. Therefore, to effectively assure the safety and durability of the compounds, non destructive testing methods, such as Ground Penetrating Radar, employed at high frequencies, provide a rapid assessment of the geometry of the compound. Although...master thesis 2020
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Imhoff, A.W.M. (author)Conventional imaging techniques from medical ultrasound and seismic imaging are not suitable for multilayered domains where there is no separation between received reflection events. This happens in layered structures where the thickness of the individual layer is small with respect to the induced wavelengths. An example of these structures is...master thesis 2020
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van Gaalen, Robin (author)The overall purpose of this study is to establish novel methods of vehicle localization and mapping using a 1D linear automotive radar array in conjuncture with pre-existing lidar maps, and to test if the generated radar map can be made to be 3 dimensional. The reason for creating a novel localization method was to try and alleviate some of the...master thesis 2020
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Jakubczak, Patryk (author), Nardi, D. (author), Bienas, Jaroslaw (author), Sinke, J. (author)The manufacturing of Fibre Metal Laminates, consisting of alternating layers of pre-preg fibre and metal is complex, and defects can be introduced during manufacturing. The automation of the manufacturing steps is vital for future Glare production, and specific defects have to be considered. Among them, gaps between pre-preg plies represent a...journal article 2019
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Shrestha, P. (author), Groves, R.M. (author)Composite materials are susceptible to barely visible impact damages (BVID) due to low-velocity impact. Therefore, an automated damage detection and quantification technique is highly desirable for quick inspection of large number of composite structures. Among various different non-destructive techniques (NDTs), active thermography NDT can...conference paper 2019
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Murali, Gokul (author)This thesis investigates the observation and characterisation of molecular dynamics of monomers and polymers confined within the nanoporous oxide layers of anodised aerospace aluminium alloys by the use of Broadband Dielectric Spectroscopy (BDS).<br/><br/>Using BDS, and subsequent data processing by fitting the dielectric data with Havriliak...master thesis 2018
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Epple, Niklas (author)Concrete is the most widely used building material in the world and its stability assessment is of utmost importance for society. Ultrasonic measurements are one tool for investigation of concrete stability. The goal of those measurements is the derivation of damage sensitive parameters. The way ultrasound diffuses through concrete is affected...master thesis 2018
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Butter, Sjoerd (author)Pipe laying projects are getting more challenging due to increasing operational depth of pipeline. The increasing depth requires more of the strength and load bearing capability of the pipeline and its girth welds. The assessment method used for checking the integrity of flaws in girth welds is called Engineering Critical Assessment (ECA) and is...master thesis 2018
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Shrestha, P. (author), Groves, R.M. (author)Composite materials are being widely used for manufacturing aircraft components due to their superior material properties such as high strength, light weight, corrosion resistance, etc. However, compared to isotropic materials, composite materials exhibit complex damage characteristics. Moreover, when the composite material is impacted by a...conference paper 2018
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van den Bercken, Vincent (author)Using Fiber Bragg Grating (FBG) sensors in rolling element bearings is a novel way of monitoring bearings. During prototype testing, differences between sensor readouts were observed, leading to the research question: “What causes the observed differences in the strain distribution from sensor to sensor in a rolling element bearing equipped with...master thesis 2017
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Spiegeler, Jap (author)The current practice of bridge maintenance decision-making is informed by subjective visual inspection data with a long time interval between measurements, which creates inefficiencies and possible loss of value in the maintenance entity’s capabilities. New opportunities from technology-related innovations for measurement devices are available...master thesis 2017
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Narayan, S. (author)Pricing strategies, mechanisms and instruments are essential for every commercial organization. Optimum extraction of value in terms of profit from its businesses is one of the important goals of every company. Price determination strategies for companies operating in consumer markets has been studied in detail and is clearly defined, however...master thesis 2014
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Tammer, M (author), Kaminski, M.L. (author)The key challenge of managing Floating Production Storage and Offloading assets (FPSOs) for offshore hydrocarbon production lies in maximizing the economic value and productivity, while minimizing the Total Cost of Ownership and operational risk. This is a comprehensive task, considering the increasing demands of performance contracting, (down...conference paper 2014
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Tsangouri, E. (author), Van Tittelboom, K. (author), Hillewaere, X.K.D. (author), Van Hemelrijck, D. (author), De Belie, N. (author), Du Prez, F.E. (author)Nowadays the self-healing process efficiency in loaded structural materials is evaluated by studying the damage mechanisms. Based on fracture mechanics theories, the resistance to damage and the cracking recovery can be an indication of healing performance. Experimentally, the cracking behavior is quantified by measuring the fracture energy of...conference paper 2013
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