Searched for: subject%3A%22shell%22
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Rongen, S. (author), Nikolova, N. (author), van der Pas, M. (author)
Industry 4.0 has proposed the Asset Administration Shell (AAS) model for digital twins. This model should help to solve interoperability issues, a topic that is also addressed by the Semantic Web and its Resource Description Framework (RDF). AAS and RDF-based models have their own strengths. AAS models are easier to integrate with operational...
article 2023
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van Leeuwen, C.J. (author), Bouter, C.A. (author), Hindriks, H.N. (author), Wilterdink, R.W.J. (author)
The Industry 4.0 Asset Administration Shell provides a standardized mechanism for collaboration between digital systems in the factory. Digital data within factories is typically stored in databases, we explore the requirements of providing an AAS as an interface to the data contained within the aforementioned databases. Based on these...
conference paper 2022
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van Ravensteijn, B.G.P. (author), Donkers, P.A.J. (author), Ruliaman, R.C. (author), Eversdijk, J. (author), Fischer, H. (author), Huinink, H.P. (author), Adan, O.C.G. (author)
Efficient and cheap storage of energy from renewable resources presents a key technology to facilitate the ongoing energy transition. Storing heat in thermochemical materials (TCMs), such as salt hydrates, provides a promising concept to meet this demand. TCMs can capture heat reversibly and loss-free by relying on equilibrium hydration...
article 2021
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Bouter, C. (author), Pourjafarian, M. (author), Simar, L. (author), Wilterdink, R. (author)
The Industry 4.0 Asset Administration Shell is designed as a digital communication interface that exposes information of various aspects of an asset in Submodels, which are functional blocks. However, a methodology that identifies the set of Submodels required for a specific use case is lacking. This work therefore presents two results: 1) the...
conference paper 2021
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Heidari, H. (author)
Considerable work has been done on the modelling of fracture and necking for accidents in the maritime and offshore industry, but very little has been done to find the crack orientation during this failure. Such information will be required in future analyses which use the eXtended Finite Element Method (XFEM), rather than the element deletion...
conference paper 2020
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Guo, Y. (author), van Ravensteijn, B.G.P. (author), Kegel, W.K. (author)
Dimple colloids with well-defined cavities were synthesized by a modified dispersion polymerization. The key step in the procedure is the delayed addition of crosslinkers into the reaction mixture. By systematically studying the effect of the delayed addition time and the concentration of the cross-linker on the resulting particle morphology, we...
article 2019
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Gower-Jones, A.D. (author), Peuscher, W.T. (author), Groeneweg, J. (author), King, S. (author), Taylor, M. (author)
Injury rates are a thing of the past: building better performance measures for better conversations to provoke change. The Oil & Gas industry has measured safety performance using Injury frequency rates for the last 40 years. Industry thinking is based on the premise that: if we do not have injuries then we are safe, and if we have injuries we...
conference paper 2018
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Segers, M. (author), Vermeer, I. (author), Möller, M. (author), Verheijen, M. (author), Buskens, P. (author)
Hybrid particles consisting of an organic polymer and silica or polyorganosiloxanes are interesting building blocks for nanocomposites. The synthesis of such particles typically requires multiple reaction steps involving the formation of polymer colloids and the subsequent deposition of silicon-containing material either inside or on the surface...
article 2017
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van Wijk, J. (author), Salari, J.W.O. (author), Meuldijk, J. (author), Klumperman, B. (author)
A novel procedure was developed to determine the direction of silica growth during the formation of a silica shell around aqueous microdroplets in water-in-oil Pickering emulsions. Two fluorescently labeled silica precursors were added consecutively and the resulting microcapsules were visualized via confocal fluorescence microscopy, allowing...
article 2015
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Buskens, P.J.P. (author), Mourada, M. (author), Meulendijks, N.M.M. (author), van Ee, R.J. (author), Burghoorn, M.M.A. (author), Verheijen, M. (author), van Veldhoven, E. (author)
The use of cellulose nanocrystals (CNCs) in optical materials has been extensively studied. Key in mostapplications reported to date is the chiral nematic ordering of CNCs. Here, we demonstrate that randompacking of silicated CNCs can also yield materials with interesting optical properties, i.e., highly porous,ultra-low refractive index...
article 2015
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Cekli, H.E. (author), Joosten, R.F.D. (author), van de Water, W. (author)
We stir wind-tunnel turbulence with an active grid that consists of rods with attached vanes. The time-varying angle of these rods is controlled by random numbers. We study the response of turbulence on the statistical properties of these random numbers. The random numbers are generated by the Gledzer-Ohkitani-Yamada shell model, which is a...
article 2015
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Walters, C.L. (author)
Simulation of failure in plate materials (represented as shell elements) is critical for the correct determination of crash performance of ships and offshore structures. This need has traditionally been filled with failure loci that give the failure strain in terms of stress triaxiality. In recent years, a third dimension (Lode parameter) has...
conference paper 2014
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ten Cate, A.T. (author), Gaspar, C.H. (author), Virtanen, H.L.K. (author), Stevens, R.S.A. (author), Koldeweij, R.B.J. (author), Olkkonen, J.T. (author), Rentrop, C.H.A. (author), Smolander, M.H. (author)
Printed electronics, the manufacturing of electronic components on large, flexible, and low-cost substrates by printing techniques, can facilitate widespread, very low-cost electronics for consumer applications and disposable devices. New technologies are needed to create functional components in this field. This paper introduces a new method to...
article 2014
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Walters, C.L. (author), Voormeeren, L.O. (author)
conference paper 2014
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Verreault, J. (author)
The Penetrator with Enhanced Lateral Effect (PELE) is a type of explosive-free projectile that undergoes radial fragmentation upon an impact with a target plate. This type of projectile is composed of a brittle cylindrical shell (the jacket) filled in its core with a material characterized with a large Poisson's ratio. Upon an impact with a...
conference paper 2014
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Khan, M.U. (author), Justice, J. (author), Boersma, A. (author), Mourad, M. (author), van Ee, R.J. (author), van Blaaderen, A. (author), Wijnhoven, J. (author), Corbett, B. (author)
We present designs for sharp bends in polymer waveguides using colloidal photonic crystal (PhC) structures. Both silica (SiO2) sphere based colloidal PhC and core-shell colloidal PhC structures having a titania (TiO 2) core inside silica (SiO2) shells are simulated. The simulation results show that core-shell Face Centered Cubic (FCC) colloidal...
conference paper 2014
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Rahman, T. (author), Jansen, E.L. (author), Tiso, P. (author)
In this paper, a finite element-based approach for nonlinear vibration analysis of shell structures is presented. The approach makes use of a perturbation method that gives an approximation for the amplitude-frequency relation of the structure. The method is formulated using a functional notation and is subsequently converted to a finite element...
article 2011
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Larsson, R. (author), Mediavilla, J. (author), Fagerström, M. (author)
Through-the-thickness crack propagation in thin-walled structures is dealt with in this paper. The formulation is based on the cohesive zone concept applied to a kinematically consistent shell model enhanced with an XFEM-based discontinuous kinematical representation. The resulting formulation comprises the representation of continuous...
article 2011
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Lentzen, S. (author)
A finite rotation shell element is presented which can be used to analyse thermopiezomechanical phenomena when dealing with thin-walled smart structures. Initially, the underlying theory is explained in order to illustrate the simplifying assumptions that are eventually made. Several locking phenomena are avoided by deploying ANS and EAS...
conference paper 2010
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Eisma, D. (author), Mook, W.G. (author), Laban, C. (author)
Salinity, temperature and age have been determined for Cardium edule shells, collected in the Southern Bight of the North Sea, from their isotopic composition. The results indicate that before c.8100 BP(probably between.10,000 and 8000 BP) a brackish-water tidal-flat area existed in the present Deep Water Channel (chlorinity c.13). Between c...
bookPart 2009
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