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Zygounas, Fotis (author)Cyclic behaviour of soil has stimulated researchers for several decades to develop constitutive models that will be able make accurate predictions of soil behaviour and at the same time they will be simple to use. Constitutive models are considered to be more valid compared to empirical models, because they comprise by equations that have actual...master thesis 2018
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Kementzetzidis, Evangelos (author)In recent years, offshore wind is becoming an increasingly growing market in Europe. Many resources are allocated towards ensuring its sustainable progress while one of the biggest uncertainties encountered lays in the offshore wind turbine's (OWT) foundations. In Europe, monopiles are the most widely adopted solution to found such structures in...master thesis 2017
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Askarinejad, A. (author), Philia Boru Sitanggang, Anggi (author), Schenkeveld, Ferry (author)The common practice in centrifuge modelling of dynamic processes is to use high-viscosity pore fluids to unify the time scaling factors for the generation and dissipation of pore pressures. This paper focuses on the effects of the density and viscosity of the pore fluid on the behaviour of an offshore rigid pile subjected to cyclic and monotonic...conference paper 2017
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- Messali, F. (author), Skroumpelou, G. (author), Esposito, R. (author) report 2017
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Kester, E.C.M. (author)A landfall operation is conducted whenever a pipeline reaches the shore, during this operation the pipeline is pulled onto shore with the help of a steel wire rope. Allseas engineering has experienced several cases of landfalls during which the friction forces along the steel wire rope rose to excessively high levels. These cases occurred at...master thesis 2016
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Lukkezen, T.L. (author)The prediction of permanent deformation accretion in granular materials as a result of long-term cyclic loading is a complex challenge that receives great attention in engineering fields, including infrastructural design and design of offshore wind turbines. Many models have been proposed in the past which aim to predict this cyclic deformation...master thesis 2016
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Huiskamp, E. (author)Only abstract available due to confidentialitymaster thesis 2016
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Application of acoustic emission measurements in the evaluation of prestressed cast in-between decksVan Hemert, P.H.A. (author), Fennis-Huijben, S.A.A.M. (author), Hordijk, D.A. (author)A large number of concrete structures, that is built in the sixties and seventies of the twentieth century, need to be re-evaluated. It should be judged whether their capacity is still sufficient for the increased traffic loads. Acoustic emission (AE) is a non-destructive technique that can possibly be used to get a better insight in the...conference paper 2014
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Lupea, C. (author)Significant financial investments are made in the offshore wind energy, in a race to reduce greenhouse gas emissions. The trend is to install larger capacity wind turbines in deeper waters, further from shore. DTI (2001) states that 30% of this investment is represented by the foundation costs. Senders (2008) and Byrne & Houlsby (2003) found...master thesis 2014
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Kester, E.C.M. (author)In deze thesis komt het onderwerp dynamische verweking aan bod, er wordt onderzoek gedaan naar het verschijnsel, waarbij is vastgehouden aan de volgende hoofdvraag: “hoe zit het verschijnsel dynamische verweking precies in elkaar, welke parameters hebben invloed op het verschijnsel, wanneer treedt het fenomeen op en hoe is dit te voorspellen?”...bachelor thesis 2014
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Chen, Y. (author)This thesis project investigates the bucket foundation in clay subjected to cyclic loads. The cyclic irregular loading history in this thesis was represented by the equivalent number of cycles Neq with a certain level of cyclic to average stress ratio tcy / ta which can be derived using cyclic shear strain accumulation procedure developed in NGI...master thesis 2014
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Truong, P.V. (author), Kishi, T. (author), Kayondo, M. (author)Self-healing concrete (SHC) can heal itself from cracks and other minor imperfections and thus prolong the life of the material itself and structure. In plain and reinforced concrete structures, fatigue is one of the major causes of both material and structural failures. Under the moving load due to traffic, it is not only the relatively simple...conference paper 2013
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Yazarov, M. (author)The goal of this work was to simulate the behaviour of ice under cyclic loading. The linear viscoelastic Kelvin, Maxwell and Burgers models were implemented in Matlab by means of The Boltzmann superposition principle. This method was verified using cases which could be represented by analytical solutions. During the extensive sensitivity...master thesis 2012
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Klinkvort, R.T. (author), Leth, C.T. (author), Hededal, O. (author)The pile-soil interaction is of great importance in the design of monopiles supporting offshore wind turbines. Especially the predication of accumulation of rotations, change in stiffness and damping is difficult. The design tools used today cannot in a proper way take the effects from cyclic, lateral loading into account. In order to develop...conference paper 2012
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- Kim, J.S. (author), Schlangen, H.E.J.G. (author) conference paper 2011
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Grotegoed, D. (author), Dudok van Heel, D. (author), De Gijt, J.G. (author)In this paper, an investigation into the causes of measured deformations of a quay wall in the Port of Rotterdam is described. Measurements show that horizontal displacements of the combi wall in seaward direction, increasing nonlinearly in time. This trend was the reason for an investigation into all possible causes of the horizontal...conference paper 2011
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Grotegoed, D. (author)In this thesis, an investigation is described to the measured horizontal displacements of a quay wall in the Port of Rotterdam. This quay wall was built in 2003 to replace an existing jetty. A combined tubular wall was installed and some of the concrete jetty piles were reused as foundation piles for the relieving platform. Anchorage for the...master thesis 2010
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Oldersma, A. (author), Wanhill, R.J.H. (author)Discussions between D-BAA and the NLR have shown that significant variability in fatigue crack growth properties is possible for the industry standard damage tolerant aluminium alloy, 2024-T3 sheet. This is important for two reasons: (1) design assumptions and (2) comparisons of different candidate materials, such as 6013-T6, with 2024-T3....report 1996
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- de Jonge, J.B. (author), Hol, P.A. (author), van Gelder, P.A. (author) report 1995
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ten Have, A.A. (author)WISPER and WISPERX are standardised variable-amplitude test loading histories for use in the fatigue design of horizontal axis wind turbine blades. They are based on flap load service measurements on 9 different horizontal axis wind turbines, covering a wide range of materials, rotor diameters and geographical locations. The present report is...report 1992