Searched for: subject%3A%22casting%22
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Heijne, Tim (author), Kruijer, Mitch (author), Kylar, Jakub (author), Spauwen, Lennard (author), Thomassen, K.E. (author), Puik, Erik (author)
By applying Axiomatic Design, a Smart Medical Cast was developed to provide patients, who are suffering from forearm fractures, with a personalized healing process. The device monitors the overall healing status and three complications, which are: Muscle Atrophy, Compartment Syndrome, and Deep Vein Thrombosis. In the conceptual phase, desk...
conference paper 2024
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Koniari, A.M. (author), Andriotis, C. (author), Oikonomopoulou, F. (author)
This work develops a computational method that produces algorithmically generated design forms, able to overcome inherent challenges related to the use of cast glass for the creation of monolithic structural components with light permeability. Structural Topology Optimization (TO) has a novel applicability potential, as decreased mass is...
conference paper 2023
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Dimas, M. (author), Oikonomopoulou, F. (author), Bilow, M. (author)
Interlocking cast glass assemblies are a promising solution for architectural cast-glass applications aiming for high transparency and a reversible structure that allows the reuse of the glass components (Oikonomopoulou et al.,2018; Oikonomopoulou,2019b). In such a system, an interlayer material between the glass elements is essential, to assist...
conference paper 2022
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Bristogianni, T. (author), Oikonomopoulou, F. (author)
The shaping freedom of cast glass in combination with the robustness of the resulting voluminous components opens up new, exciting directions in the field of structural glass. Yet, cast glass components remain brittle, limiting their structural applications in hyper-static compressive structures designed with conservative safety factors....
conference paper 2022
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Oikonomopoulou, F. (author), Koniari, A.M. (author), Damen, J.T.W. (author), Koopman, D. (author), Stefanaki, M.I. (author), Bristogianni, T. (author)
This paper introduces the use of structural topology optimization (TO) as a new design approach that enables the creation of monolithic load-bearing cast glass components of substantial dimensions with significantly reduced annealing times, rendering such components viable in terms of manufacturing. Using topology optimization, the glass mass...
conference paper 2022
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Oikonomopoulou, F. (author), Bhatia, I.S. (author), van der Weijst, F.A. (author), Damen, J.T.W. (author), Bristogianni, T. (author)
This paper explores two alternative mould fabrication technologies that allow for the casting of (solid) glass components with a great degree of freedom in shape and size and/or of a customized design, in a cost-efficient way. In specific, the paper discusses the research, design and experimental work conducted at TU Delft on 3D-printed sand...
conference paper 2020
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Anagni, G.M. (author), Bristogianni, T. (author), Oikonomopoulou, F. (author), Rigone, Paolo (author), Mazzucchelli, Enrico Sergio (author)
The problem of sustainability represents one of the most important issues that the world has to face nowadays, not only in terms of energy consumption and of the consequent CO2 emissions, but also in terms of material waste streams that end in landfill. 38 million tons of glass waste are produced every year in the European Union and new targets...
conference paper 2020
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van der Weijst, F.A. (author), Oikonomopoulou, F. (author), Bilow, M. (author)
TCompared to flat sheets of float glass, cast glass components have a thicker geometry and thus a high buckling resistance. This buckling resistance in combination with the high compressive strength of glass make cast glass components suitable for the construction of fully transparent shell structures that are mainly subjected to compressive...
conference paper 2020
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Yu, R. (author), Bristogianni, T. (author), Veer, F.A. (author), Nijsse, R. (author)
It is not obvious to talk about glass recycling when we realize that a mature recycling procedure for glass bottles is already working well. However, apart from glass bottles, unfortunately, that a large amount of glass will disappear into landfills. This large quantity of unrecycled glass indicates that there is a large potential in upgrading...
conference paper 2020
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Bristogianni, T. (author), Oikonomopoulou, F. (author), Veer, F.A. (author), Nijsse, R. (author)
The success of projects such as the Crystal Houses façade in Amsterdam has triggered an increasing interest from architects, engineers and glass producers in the development and application of structural cast glass components. This interest raises, simultaneously, the needs for a controlled manufacturing process, a system for quality control and...
conference paper 2019
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Bristogianni, T. (author), Oikonomopoulou, F. (author), Justino de Lima, C.L. (author), Veer, F.A. (author), Nijsse, R. (author)
Although in theory glass can be endlessly remelted without loss in quality, in practice only a small percentage gets recycled, mainly by the packaging industry. Most of the discarded glass fails to pass the high quality standards of the prevailing glass industry -due to coatings, adhesives, other contaminants or incompatibility of the recipe-...
conference paper 2018
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Oikonomopoulou, F. (author), Bristogianni, T. (author), Barou, L. (author), Jacobs, Erwin (author), Frigo, G. (author), Veer, F.A. (author), Nijsse, R. (author)
Cast glass components are a promising solution for engineering pure glass structures of high transparency and load-carrying capacity due to their large cross-sectional area and monolithic nature. Currently, the few realized structures employing cast glass components rely either on a steel substructure or on an adhesive of high bonding strength...
conference paper 2018
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Vidal Sarmiento, E. (author), Hendriks, M.A.N. (author), Geiker, M. R. (author), Kanstad, T. (author)
Most recent studies on fibre-reinforced self-compacting concrete agree on the impact of the casting conditions on the fibre orientation and distribution, and its consequence thereof on the structural performance. A substantial number of investigations are continuously contributing to gain experience on the use of flowable FRC for different...
conference paper 2016
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Henriksen, T.N. (author), Knaack, U. (author), Lo, S. (author)
Glass Fibre Reinforced Concrete (GFRC) has been developed over the last 50 years into the material it is today. GFRC is mostly used as a cladding material and to a lesser extent for structural elements. This paper examines the challenges of using freeform thin-walled GFRC elements in the design and fabrication of a self-supporting artwork. The...
conference paper 2015
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Hopman, V. (author), Hölscher, P. (author)
A test field with 20 cast in-situ piles has been built. Flaws (necks, bulges and cracks) are built in. Existing and newly developed detecting methods have been tested. They show interpretable signals and also some challenges to improve the results. The final phase e.g. excavation of a representative number of piles will lead to final conclusions...
conference paper 2015
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Lalpoor, M. (author), Eskin, D.G. (author), Katgerman, L. (author)
conference paper 2010
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Lalpoor, M. (author), Eskin, D.G. (author), Katgerman, L. (author)
Non-homogenous cooling rates and solidification conditions during DC-casting of high strength aluminum alloys result in the formation and accumulation of residual thermal stresses with different signs and magnitudes in different locations of the billet. Rapid propagation of microcracks in the presence of thermal stresses can lead to catastrophic...
conference paper 2010
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Lalpoor, M. (author), Eskin, D.G. (author), Fjaer, H.G. (author), Ten Cate, A. (author), Ontijt, N. (author), Katgerman, L. (author)
Direct chill (DC) casting of high strength 7xxx series aluminium alloys is difficult mainly due to solidification cracking (hot cracks) and solid state cracking (cold cracks). Poor thermal properties along with extreme brittleness in the as-cast condition make DC-casting of such alloys a challenging process. Therefore, a criterion that can...
conference paper 2010
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Lalpoor, M. (author), Eskin, D.G. (author), Katgerman, L. (author)
conference paper 2010
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Ten Cate, A. (author), Geurts, B.J. (author), Muskulus, M. (author), Köster, D. (author), Muntean, A. (author), Van Opheusden, J. (author), Peschansky, A. (author), Vreman, B. (author), Zegeling, P. (author)
The casting process of aluminum products involves the spatial distribution of alloying elements. It is essential that these elements are uniformly distributed in order to guarantee reliable and consistent products. This requires a good understanding of the main physical mechanisms that affect the solidification, in particular the thermodynamic...
conference paper 2008
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