Searched for: subject:"damage"
(1 - 20 of 286)

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Bhangale, J.A. (author)
The work done for this thesis is related to fatigue analysis of various material types used in the wind turbine blades. For the analysis, a framework from the thermodynamics of irreversible processes with internal variables and Continuum Damage Mechanics (CDM) is used. Thermodynamic principles provide a generic framework that is valid for the...
doctoral thesis 2021
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Marasco, Sebastiano (author), Cardoni, Alessandro (author), Zamani Noori, Ali (author), Kammouh, O. (author), Domaneschi, Marco (author), Cimellarof, Gian Paolo (author)
Due to the increasing frequency of disastrous events, the challenge of creating large-scale simulation models has become of major significance. Indeed, several simulation strategies and methodologies have been recently developed to explore the response of communities to natural disasters. Such models can support decision-makers during...
review 2021
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Keller, A. (author), Geissberger, R. (author), Studer, J. (author), Leone, F. (author), Stefaniak, D. (author), Pascoe, J.A. (author), Dransfeld, C.A. (author), Masania, K. (author)
The effect of ply thickness on the notch sensitivity and bearing properties on carbon fibre reinforced polymer composites and their hybrid laminates with steel foils were studied. Laminates with ply thicknesses of 0.3 mm and 0.03 mm comprising of CFRP and hybrid laminates were manufactured and characterized using tension, open hole tension...
journal article 2021
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Korswagen, Paul (author), Rots, J.G. (author)
Recent, induced earthquakes in the north of the Netherlands have led to a large number of damage claims. Many claims can be considered to fall into the category of ‘light damage’ to the ubiquitous, unreinforced masonry structures in the region. To evaluate and predict the behaviour of cracks, characteristic of light masonry damage, caused by...
conference paper 2021
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Qu, Dingran (author), Qiao, Tiezhu (author), Pang, Y. (author), Yang, Yi (author), Zhang, Haitao (author)
Belt conveyor is considered as a momentous component of modern coal mining transportation system, and thus it is an essential task to diagnose and monitor the damage of belt in real time and accurately. Based on the deep learning algorithm, this present study proposes a method of conveyor belt damage detection based on ADCN (Adaptive Deep...
journal article 2021
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Zhang, Cheng-lin (author), Chen, Wei-kang (author), Mu, Song (author), Šavija, B. (author), Liu, Qing-feng (author)
Reinforced concrete (RC) structures may suffer from serious durability problems during long-term service. To investigate the deterioration of RC structures subjected to the dual attacks of chlorides and sulfates, this study proposes a coupled model for external sulfate attack (ESA) and its effect on chloride binding and diffusion. To account for...
journal article 2021
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Arano, Assis (author), Colombo, Matteo (author), Martinelli, Paolo (author), Øverli, Jan Arve (author), Hendriks, M.A.N. (author), Kanstad, Terje (author), Di Prisco, Marco (author)
Advanced numerical modeling of high-strength concrete (fc>60 MPa) structures designed to withstand severe thermal conditions requires detailed and reliable information on the mechanical properties of the material exposed to elevated temperatures. The only uniaxial compressive strength variation with temperature is not enough to satisfy the...
journal article 2021
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Metz, I.C. (author), Ellerbroek, J. (author), Mühlhausen, Thorsten (author), Kügler, Dirk (author), Hoekstra, J.M. (author)
Bird strike prevention in civil aviation has traditionally focused on the airport perimeter. Since the risk of especially damaging bird strikes outside the airport boundaries is rising, this paper investigates the safety potential of operational bird strike prevention involving pilots and controllers. In such a concept, controllers would be...
journal article 2021
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Padoan, R. (author), Klein, Marvin E. (author), Groves, R.M. (author), de Bruin, Gerrit (author), Steemers, Ted A.G. (author), Strlič, Matija (author)
Ageing of historical documents often results in changes in the optical properties of the constituent materials. Imaging spectroscopy (IS) can be a valuable tool for monitoring of such changes, if the method fulfils two important conditions. Firstly, compared to natural ageing, the accumulated light dose from repeated measurements of the...
journal article 2021
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Li, X. (author), Kupski, J.A. (author), Teixeira De Freitas, S. (author), Benedictus, R. (author), Zarouchas, D. (author)
This study investigates the early fatigue damage of cross-ply carbon/epoxy laminates. The aim is to unfold the damage accumulation process, understand the interaction between different damage mechanisms, and quantify their contribution to stiffness degradation. Tension-tension fatigue tests were performed, while edge observation and DIC...
journal article 2020
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Rajabzadeh, Aydin (author)
Compared to metals, composite materials offer higher stiffness, more resilience to corrosion, have lighter weights, and their mechanical properties can be tailored by their layup configuration. Despite these features, composite materials are susceptible to a diversity of damages, including matrix cracks, delamination, and fibre breakage. If...
doctoral thesis 2020
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Maathuis, E.C. (author)
Cyber Warfare is perceived as a radical shift in the nature of warfare. It can represent a real alternative next to other types of Military Operations to achieve military and/or political goals in front of adversaries. To this end, Cyber Operations use specific technologies i.e. cyber weapons/capabilities/means. With a short but intense history...
doctoral thesis 2020
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Nokhbatolfoghahai, A. (author), Navazi, H. M. (author), Groves, R.M. (author)
In this paper, the hybrid Delay-And-Sum (DAS) with Sparse Reconstruction (SR) method was further developed for damage location in composite plates. In composite materials, anisotropy leads to some challenges in using conventional damage location methods, which are developed for isotropic materials. In the hybrid DAS-SR method, the DAS and SR...
journal article 2020
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Massart, Philippe F.R. (author), Dhanisetty, V.S.V. (author), Kassapoglou, C. (author), Verhagen, W.J.C. (author), Curran, R. (author)
This paper proposes an analytical model that uses historical damage dimension data to deduce physical impactor characteristics (size and energy) that has caused a certain resulting damage. Maintenance tasks occur in operations due to impact, however the source of the damage caused in the event remains in most cases unknown. Consequently, by...
journal article 2020
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Mostofizadeh, S. (author)
Increase in computational power during recent years contributed to a significant development in numerical methods in mechanics. There are many methods developed that address various complex problems, yet modelling of initiation and propagation of failure in thin-walled structures requires further development. Among numerous challenges involved,...
doctoral thesis 2020
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Deb Roy, S. (author)
The basis of this thesis has been the curiosity, however modest, to understand how DNA replication happens in vivo, particularly during the onset of DNA damage and beyond. DNA damage is a recurring phenomenon, which a (bacterial) cell faces in its lifetime from the environment or even its inherent metabolism. While we understand much about...
doctoral thesis 2020
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Du, Shuoran (author), Hamdi, M. (author), Sue, Hung Jue (author)
Mar is a type of subtle surface damage caused by a sliding object barely visible to human eyes. This minor damage phenomenon has rarely been systematically studied. Significant research efforts for the fundamental understanding of mar behavior in polymers are still needed. In this study, the mar behavior of a series of model amorphous...
journal article 2020
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Wang, H. (author), Yang, Jun (author), Lu, Guoyang (author), Liu, X. (author)
Self-healing of asphalt concrete (AC) is highly dependent on temperature, and its healing capacity increases with elevated temperatures. The main objective of this study is to investigate the effect of microwave heating on promotion of self-healing in AC. With this purpose, two types of AC specimens (neat AC without additives and conductive...
journal article 2020
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Zarouchas, D. (author), Pascoe, J. A. (author), Alderliesten, R.C. (author)
In the present work, a fatigue damage analysis of biaxial Carbon Fibre Reinforced Polymer (CFRP) specimens loaded at two different stress levels and a fatigue ratio, R=0.1, was performed. A cycle-by-cycle approach was used, utilizing results from Acoustic Emission (AE) measurements. The aim was to investigate the influence of the applied...
conference paper 2020
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Vos, Y. (author), Lane, R.I. (author), Peddie, Chris J. (author), Wolters, A.E. (author), Hoogenboom, J.P. (author)
The authors present the application of a retarding field between the electron objective lens and sample in an integrated fluorescence and electron microscope. The retarding field enhances signal collection and signal strength in the electron microscope. This is beneficial for samples prepared for integrated fluorescence and electron...
journal article 2020
Searched for: subject:"damage"
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