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van de Ven, E.A. (author), Ayas, C. (author), Langelaar, Matthijs (author), Maas, Robert (author), van Keulen, A. (author)Additive manufacturing (AM) and topology optimization (TO) have a synergetic relation, as AM can produce complex TO designs, and TO provides high-performance parts that utilize the form freedom provided by AM. Recently, TO has been tailored more toward AM with the inclusion of the minimum allowable overhang angle as a design constraint:...journal article 2021
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Gantenbein, Silvan (author), Mascolo, C. (author), Houriet, C.C.M.C.A.G. (author), Zboray, Robert (author), Neels, Antonia (author), Masania, K. (author), Studart, André R. (author)Fiber-reinforced polymers are widely used as lightweight materials in aircraft, automobiles, wind turbine blades, and sports products. Despite the beneficial weight reduction achieved in such applications, these composites often suffer from poor recyclability and limited geometries. 3D printing of liquid crystal polymers into complex-shaped...journal article 2021
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Laot, M.A.L. (author), Rich, Belinda (author), Cheibas, Ina (author), Fu, J. (author), Zhu, Jia-Ning (author), Popovich, V. (author)This study investigates the feasibility of in-situ manufacturing of a functionally graded metallic-regolith. To fabricate the gradient, digital light processing, an additive manufacturing technique, and spark plasma sintering were selected due to their compatibility with metallic-ceramic processing in a space environment. The chosen methods...journal article 2021
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Hoes, Emma (author)The manufacturing freedom of additive manufacturing, and design freedom of topology optimization have proven to be a fruitful combination in creating and manufacturing designs. While research into applications of metal additive manufacturing has advanced from rapid prototyping to end-use components, metal additive manufacturing of compliant...master thesis 2020
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Laot, Mathilde (author)Building habitats on the Moon is required for long-duration missions foreseen in the very near future. The availability of lunar regolith will allow to manufacture such in space habitats and reduce the cost of space missions. However, the Moon has specific environmental characteristics that are different compared to terrestrial habitats:...master thesis 2020
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Rodiftsis, Athanasios (author)When designing for structural performance, the geometry of the load-bearing elements is crucial for achieving the required stability. This is even more important in structural forms, such as shells and arches that are predominantly designed by their structural requirements. However, the typical design process starts with the design by the...master thesis 2020
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Hester, Thomas (author)This thesis contains the design process of a compliant shape adaptive chicory gripper for robotic sorting processes. The robotic sorting line consists of an input and output conveyor-belt. The input line contains unsorted chicories which are scanned by a robotic vision system. Overhead FlexPicker robots, equipped with chicory grippers, sort the...master thesis 2020
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Drillenburg ook genaamd Lelijveld, M.P. (author)In light of the global attempts to reduce material use by the construction industry, this research focuses on combining topology optimisation with additive manufacturing of steel. It is investigated whether an automated procedure can be developed to generate reliable strut and tie models for reinforced concrete elements, while satisfying the...master thesis 2020
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Ertman, Katharina (author)To create a more sustainable future for aviation, new, lighter-weight structures and materials will need to be engineered. It will also be critical that damage tolerance and safety are not compromised in the process. Lattice materials represents one avenue of exploration; however, two key challenges arise: limited experimental work has been...master thesis 2020
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KIM, Jiheon (author)Repair and maintenance of products require few resources in a circular economy, minimising the environmental impact of manufacturing and use of products. Although lightweight lattice structures have been widely investigated in various fields owing to their advantages in terms of their mechanical characteristics and the development of additive...master thesis 2020
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Parulekar, A. (author)The preservation and restoration of intricate stucco ornaments, which are part of our collect cultural Heritage, is under threat due to a diminishing number of skilled restoration plasterers. The highly physically demanding- and labour intensive nature of this work makes it unsustainable for the human body and advocates for a more sustainable...master thesis 2020
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Sidiropoulou, Nikoleta (author)The built environment is and will be the place in which most of the people live and its expansion is unavoidable due to urbanization. However, such a phenomenon will increase further the already high material consumption in the building industry, as well as the waste generation. A development that rises many concerns in modern society and, thus,...master thesis 2020
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Vella Bamber, Tomas (author)This project focuses on enhancing the accessibility of 3D printing for repairers by designing a system in which repairers can collaborate with makers. Repair has become rare in societies with an abundance of cheap goods. However in recent years repair is making a gradual comeback in western culture. Citizen repair initiatives such as Repair...master thesis 2020
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Ritzen, Linda (author)Additive manufacturing of smart polymers is a rapidly growing field. Additive manufacturing presents a versatile, low-waste manufacturing method for functional materials. Self-healing polymers are a type of smart polymers that are able to mend damage, either by the incorporation of an encapsulated healing agent or by intrinsic polymer design....master thesis 2020
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Li, Y. (author)For the treatment of large bony defects, no perfect solution has been yet found, partially due to the unavailability of ideal bone implants. Additively manufactured (AM) biodegradable porous metals provide unprecedented opportunities to fulfil the requirements for ideal bone implants to be used in such treatments. Firstly, the multi-scale...doctoral thesis 2020
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Ranjan, R. (author), Ayas, C. (author), Langelaar, Matthijs (author), van Keulen, A. (author)The powder bed fusion (PBF) process is a type of Additive Manufacturing (AM) technique which enables fabrication of highly complex geometries with unprecedented design freedom. However, PBF still suffers from manufacturing constraints which, if overlooked, can cause various types of defects in the final part. One such constraint is the local...journal article 2020
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Houriet, Caroline (author)Recent findings have highlighted the potential of a 3D-printable high-strength Liquid Crystal Polymer, whose anisotropy can be fostered for topology optimization intents. The mesostructure of a 3D-printed liquid crystal polymer is studied: the observation of interlayer features under the form of regular notches or spiraling patterns swirls is...master thesis 2019
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Oldhoff, Miriam (author)Additive manufacturing (AM) provides the opportunity for complex porous designs, without the costs depending on batch size. Therefore patient-specific implants can be rapidly manufactured. In clinical practice, reconstruction of the mandible is needed in case of bone tumors or trauma. Part of the mandible is removed and the shape of the missing...master thesis 2019
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Creusen, Frederic (author)This work aims at predicting the elasto-plastic and fracture behavior of ABS polymers obtained by Fused Filament Fabrication (FFF). The strategy adopted is to characterize the microstructure of Representative Volume Elements (RVEs) of the material, as well as the mechanical properties of the polymeric filament used in the FFF process and then...master thesis 2019
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Dijkmans, Floor (author)Prosthetic failure due to implant-associated infections remains a big problem, despite the extensive use of implants and number of researches performed on this topic. A new problem arises with the development of additively manufactured complex orthopedic metal implants. In spite of the advantages that come with patient specific implants to cure...master thesis 2019