Searched for: subject:"Reliability"
(1 - 20 of 1,027)

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den Otter, C. (author), Maljaars, J. (author)
Bolted connections are applied in many aluminium structures. Stainless steel bolts are often preferred over carbon steel bolts in aluminium connections to prevent galvanic corrosion. However, current design standards and guidelines do not allow for using preloaded stainless steel bolts in slip resistant connections, mainly because of a lack of...
article 2020
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Steijn, W.M.P. (author), van Kampen, J.N. (author), van der Beek, D. (author), Groeneweg, J. (author), van Gelder, P.H.A.J.M. (author)
Quantitative Risk Analysis (QRA) is a standard tool in some high-risk industries (such as the on- and offshore exploration and production and chemical industry). Presently, existing knowledge concerning human error likelihood and human reliability assessment is insufficiently represented in QRAs. In this paper we attempt to implement the...
article 2020
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Roubos, A. (author), Allaix, D. (author), Fischer, K. (author), Steenbergen, R. (author), Jonkman, S. (author)
General frameworks for reliability differentiation have evolved over time and are mainly developed for buildings. However, recommendations for the safety of existing quay walls are lacking. In this study, target reliability indices for assessing existing quay walls were derived by economic optimisation and by evaluating the requirements...
article 2020
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Bakker, K. (author), Rasia, A. (author), Assen, S. (author), Ben Said Aflouat, B. (author), Weeber, A. (author), Weeber, A. (author), Theelen, M. (author)
When a PV module is partially shaded, the shaded solar cells operate in a reverse bias condition. For Cu(In,Ga)Se2 cells this condition can cause defects that irreversibly reduce the output of these cells and the full module. In order to design robust shade-tolerant CIGS modules details need to be known of the conditions at which these defects...
article 2020
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Leonetti, D. (author), Snijder, H.H. (author), Maljaars, J. (author)
This present paper concerns the application of probabilistic fatigue life prediction models based on S–N curves aiming at the estimation of the safety level for a nonload carrying cruciform joint. The safety level is expressed in terms of the reliability index as a function of the number of applied cycles. Estimating the reliability of a...
article 2020
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Tukker, A. (author), Wood, R. (author), Schmidt, S. (author)
article 2020
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Roscoe, K. (author), Hanea, A. (author), Jongejan, R. (author), Vrouwenvelder, T. (author)
In levee system reliability, the length effect is the term given to the phenomenon that the longer the levee, the higher the probability that it will have a weak spot and fail. Quantitatively, it is the ratio of the segment failure probability to the cross-sectional failure probability. The literature is lacking in methods to calculate the...
article 2020
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Nadolski, V. (author), Rózsás, Á. (author), Sýkora, M. (author)
Partial factors are commonly based on expert judgements and on calibration to previous design formats. This inevitably results in unbalanced structural reliability for different types of construction materials, loads and limit states. Probabilistic calibration makes it possible to account for plentiful requirements on structural performance,...
article 2019
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Bakker, K. (author), Nilsson Ahman, H. (author), Aantjes, K. (author), Barreau, N. (author), Weeber, A.W. (author), Theelen, M. (author)
Partial shading of Cu(In,Ga)Se2 modules can lead to the formation of reverse bias induced wormlike defects. These wormlike defects act as local shunts and permanently decrease module output. A good understanding of the formation and propagationmechanisms of these defects is needed in order tomitigate the negative effects, or to prevent these...
article 2019
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van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author)
The manufacturing of radar front-ends is preferably performed with components that are fully tested and known to be functional. This decreases the chances of instant failure or rapid degradation of the system. Complete testing of the RF-performance of the individual MMICs, however, is not always possible due to technical, infrastructural or...
conference paper 2019
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Nair, V. (author), Litjens, R. (author), Zhang, H. (author)
A suitability assessment and performance optimisation is presented of narrowband Internet of Things (NB-IoT) cellular technology for use in smart energy distribution networks. The focus is on the reliable and timely delivery of outage restoration and management (ORM) messages at the event of a local or regional power outage. Both the cellular NB...
article 2019
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van den Brand, H. (author), Bongers, W.A. (author), Stober, J.K. (author), Kasparek, W. (author), Wagner, D. (author), Doelman, N.J. (author), Klop, W.A. (author), Giannone, L. (author), Reich, M. (author), Westerhof, E. (author), de Baar, M.R. (author)
The successful use of a tokamak for generating fusion power requires an active control of magnetic instabilities, such as neoclassical tearing modes (NTMs). Commonly, the NTM location is determined using electron cyclotron emission (ECE) and this is used to apply electron cyclotron heating (ECH) on the NTM location. In this paper, an inline ECE...
article 2019
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Fusco, M. (author), Semsar-Kazerooni, E. (author), Zegers, J.C. (author), Ploeg, J. (author)
In this paper, a method to model the decision making system of Connected and Automated Vehicles (CAVs) is discussed. The method is based on an algebra different from the conventional, the so-called Max-Plus algebra. First, a literature-review on the application of Max-Plus algebra in different sectors is presented. Then, the Max-Plus linear...
conference paper 2019
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H. (author)
Before bolts were invented, hot-riveting was employed as technological process to produce built-up structural members of steel structures. Nowadays, these structures being still in service and susceptible to fatigue failure,they need to be assessed for their remaining service life. To estimate the fatigue life distribution of riveted connections...
article 2019
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van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author)
The manufacturing of radar front-ends is preferably performed with components that are fully tested and known to be functional. This decreases the chances of instant failure or rapid degradation of the system. Complete testing of the RF-performance of the individual MMICs, however, is not always possible due to technical, infrastructural or...
conference paper 2019
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Slobbe, A. (author), Rózsás, Á. (author), Allaix, D.L. (author), bigaj-van Vliet, A. (author)
The objective of this paper is to explore the value of reliability-based nonlinear finite element analysis (NLFEA) over the currently available, standardized assessment methods. To our knowledge, no studies are available on this subject, and this paper provides a first insight into the value and reliability level of these assessment methods. The...
article 2019
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la Gasse, L.C. (author), Steenbergen, R.D.J.M. (author), Allaix, D.L. (author)
Traffic load models like in the Eurocode and other design standards are mostly calibrated using traffic load measurements at heavily loaded highway locations. Therefore application of these models to existing bridges in the urban road network often leads to unnecessary strengthening. Direct measurement data for this road network are currently...
article 2019
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Pacini, F. (author), Paoli, G. (author), Cayón, I. (author), Rivera, T. (author), Sarmiento, B. (author), Kebkal, K. (author), Kebkal, O. (author), Kebkal, V. (author), Geelhoed, J. (author), Schipperijn, B. (author), Dol, H.S. (author), Skogseth, T. (author)
The management of a heterogeneous mix of underwater vehicles needs a robust and reliable communication network, able to connect the remote command and control station (typically ashore or on board of a support ship) with nodes and vehicles in the deep sea. on the basis of this scenario, the infrastructure shall satisfy requirements such as:...
conference paper 2018
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Nedeljkovic, M. (author), Šavija, B. (author), Zuo, Y. (author), Lukovic, M. (author), Ye, G. (author)
The aim of this paper was to investigate the effect of natural carbonation on the pore structure, and elastic modulus (E-m) of alkali-activated fly ash (FA) and ground granulated blast furnace slag (GBFS) pastes after one year of exposure in the natural laboratory conditions. The chemical changes due to carbonation were examined by X-ray...
article 2018
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Visser, J.H.M. (author)
The current theory of ASR gel formation in concrete between silicic acid anions with cations and is unable to explain the differences in concentration required for gel formation between e.g. potassium and sodium or the effect of calcium on the gel formation. In this paper, a new gelation mechanism is explained by means of a condensation between...
article 2018
Searched for: subject:"Reliability"
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