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Kuipers, Tim (author), Doubrovski, E.L. (author), Verlinden, J.C. (author)This work presents halftoning techniques to manufacture 3D objects with the appearance of full grayscale imagery for Fused Deposition Modeling (FDM) printers. While droplet-based dithering is a common halftoning technique, this is not applicable to FDM printing, since FDM builds up objects by extruding material in semi-continuous paths. A set...conference paper 2017
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Yang, Y. (author), Ayas, C. (author)The Selective laser melting (SLM) is a powder based additive manufacturing (AM) method to produce high density metal parts with complex topology. However, part distortions and accompanying residual stresses deteriorates the mechanical reliability of SLM products. Modelling of the SLM process is anticipated to be instrumental for understanding...conference paper 2017
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Yang, Y. (author), Ayas, C. (author)Selective laser melting (SLM) is a powder based additive manufacturing technique suitable for producing high precision metal parts. However, distortions and residual stresses within products arise during SLM because of the high temperature gradients created by the laser heating. Residual stresses limit the load resistance of the product and...conference paper 2017
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Van Den Brink, W. M. (author), Van Der Klift, F. (author), Bruins, R. (author), Hermans, M.J.M. (author)Recent developments in the field of plastic additive manufacturing have seen the introduction of carbon fibres in printed products. These fibres improve the strength and stiffness of the thermoplastic based components. Two approaches are currently seen, the very short fibre embedded in the printing filament and continuous fibres, where the...conference paper 2017
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Mustapha, K. A. (author), Shikh Anuar, F. (author), Mohd Sa’at, F. A.Z. (author), Zini, N. H.M. (author), Mat Tokit, E. (author), Satishwara Rao, N. (author), Hooman, K. (author), Abdi, Iman Ashtiani (author)In this study, 3D printed open-cell foam were produced and reconstructed from open-cell metal foam structure using a tomography scanning method and two different additive manufacturing technologies. The materials used in the 3D printing were nylon powder and plastic acid. The porous morphology and surface finish of the 3D printed foams were...conference paper 2022
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Schenatoa, Luca (author), Aguilar Lopez, J.P. (author), Galtarossa, Andrea (author), Pasutoa, Alessandro (author), Bogaard, T.A. (author), Palmieri, Luca (author)We present the design and field test of a rugged FBG sensor prototype for high-sensitivity measurement of underground water level. Pressure sensors have many fields of application, ranging from environmental monitoring to the oil and gas industry. In particular, pressure sensors can be used to monitor the stability of dikes and embankments by...conference paper 2019
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Hehenberger, S.P. (author), Caizzone, Stefano (author), Yarovoy, Alexander (author)The utilization of low-cost hybrid additive manufacturing equipment for creating a fully integrated patch antenna system is demonstrated. A miniaturized stacked dual-band patch antenna for GNSS applications with integrated feed, amplifier, matching, and bias network is considered. Design and manufacturing challenges due to the peculiarities of...conference paper 2024
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Zadpoor, A.A. (author)Additive manufacturing (AM) (=3D printing) has emerged during the last few years as a powerful technological platform for fabrication of functional parts with unique complex geometries and superior functionalities that are next to impossible to achieve using conventional manufacturing techniques. Due to their importance in industrial...contribution to periodical 2018
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Schmieden, D.T. (author)In this study, a method for the bacterial production of a nacre-mimicking composite material was developed. Nacre (mother-of-pearl) is an organic-inorganic composite found in the inner lining of many mollusk shells and in pearls. It has a brick-and-mortar structure consisting of 95% aragonite (calcium carbonate) platelets and 5% organic matrix....doctoral thesis 2019
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Chaves Figueiredo, S. (author)Adding extra functionality to cementitious materials will enhance the capabilities of understanding the use of structures where they are used and at the same time increase its life span. The construction industry is one of the most important economic sectors in many countries. Therefore, efforts to improve its productivity can result in...doctoral thesis 2023
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Lussenburg, K.M. (author)Additive manufacturing, or 3D printing, offers a new paradigm for the way functional products are designed, manufactured, and assembled. Its additive nature provides the ability to create complex-shaped parts, without an increase in production time or costs, which would be difficult to produce with conventional manufacturing. In addition,...doctoral thesis 2024
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O’Brien, Lisa (author), Montesano, Elena (author), Chadwell, Alix (author), Kenney, Laurence (author), Smit, G. (author)(1) Background: This study investigated the feasibility of conducting a two-week “real-world” trial of the Self Grasping Hand (SGH), a novel 3D printed passive adjustable prosthesis for hand absence; (2) Methods: Single-group pilot study of nine adults with trans-radial limb absence; five used body-powered split-hooks, and four had passive...journal article 2022
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Luesutthiviboon, S. (author), Ragni, D. (author), Avallone, F. (author), Snellen, M. (author)This study focuses upon a new permeable topology design concept as an alternative to porous metal foams, for turbulent boundary layer trailing-edge (TBL-TE) noise attenuation. The present permeable topology has unconventional characteristics with respect to the metal foams: a combination of low flow resistivity r and high form drag...journal article 2021
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Xu, Y. (author), Šavija, B. (author)Conventionally, the properties of cementitious materials are tailored by a simple but efficient method: mixture proportion design. For a given cementitious mixture, the chemical and physical properties of cementitious materials have already been determined. Consequently, the mechanical performance of the hardened cementitious material is...journal article 2021
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Hedayati, R. (author), Yousefi, Armin (author), Bodaghi, Mahdi (author)With dramatic increase in 3D printing applications in industry, sandwich panels with 3D printed cores have gained a lot of attention recently. In harmony with global movement towards sustainability and low-carbon emission industries, sandwich panels with easy-to-repair and cost-effective cores would be very attractive structures. In this...journal article 2022
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Tissen, L.N.M. (author)This article uses the COVID –19 crisis to re –evaluate the importance of reproductions – 3D prints – for art’s authenticity, and their significance in keeping art museums meaningful in a rapidly changing world. The fixation on ‘auratic experiences’, inherent to artworks’ materiality is integral to contemporary art theory and museum practice,...journal article 2021
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Malik, Umair (author), Tissen, L.N.M. (author), Vermeeren, A.P.O.S. (author)3D digitization of cultural heritage has long been used to preserve information about cultural heritage (CH) objects such as architecture, art, and artifacts. 3D dissemination of CH objects through technologies such as augmented reality, virtual reality, and 3D printing have impacted the fields of art history and cultural heritage and have...journal article 2021
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Jackson-Mills, George (author), Blight, A. (author), Barber, Andrew (author), Pickering, Andrew (author), Boyle, J.H. (author), kaddouh, Bilal (author), Richardson, Robert C. (author)Small inspection robots allow for the optimal exploration of environments and the collection of data from challenging areas, particularly where there may be small access points or tight and fragile surroundings. These robots can be custom-built for specific tasks, but the design and assembly process for this can be costly, both in resources and...journal article 2022
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Ritzen, L. (author), Montano, V. (author), Garcia, Santiago J. (author)The use of self-healing (SH) polymers to make 3D-printed polymeric parts offers the po-tential to increase the quality of 3D-printed parts and to increase their durability and damage toler-ance due to their (on-demand) dynamic nature. Nevertheless, 3D-printing of such dynamic poly-mers is not a straightforward process due to their polymer...journal article 2021
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Tissen, L.N.M. (author), van Veldhuizen, Mané (author)Various types of digital and physical three-dimensional facsimile technologies (e.g., high-definition digital modelling and 3D printing) have entered the art world and have become increasingly important for research and presentation purposes. Yet, studies that go beyond the technical aspects of (3D) facsimile techniques, such as their...journal article 2022