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Putra, N.E. (author), Leeflang, M.A. (author), Taheri, P. (author), Fratila-Apachitei, E.L. (author), Mol, J.M.C. (author), Zhou, J. (author), Zadpoor, A.A. (author)Additively manufactured biodegradable porous iron has been only very recently demonstrated. Two major limitations of such a biomaterial are very low biodegradability and incompatibility with magnetic resonance imaging (MRI). Here, we present a novel biomaterial that resolves both of those limitations. We used extrusion-based 3D printing to...journal article 2021
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Mirzaali, Mohammad J. (author), Ghorbani, Aref (author), Nakatani, Kenichi (author), Nouri Goushki, M. (author), Tümer, N. (author), Callens, S.J.P. (author), Janbaz, S. (author), Accardo, A. (author), Bico, José (author), Habibi, Mehdi (author), Zadpoor, A.A. (author)The design of advanced functional devices often requires the use of intrinsically curved geometries that belong to the realm of non-Euclidean geometry and remain a challenge for traditional engineering approaches. Here, it is shown how the simple deflection of thick meta-plates based on hexagonal cellular mesostructures can be used to achieve...journal article 2021
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Balasubramanian, S. (author), Yu, K. (author), Meyer, Anne S. (author), Karana, E. (author), Aubin-Tam, M.E. (author)Living materials, which are fabricated by encapsulating living biological cells within a non-living matrix, have gained increasing attention in recent years. Their fabrication in spatially defined patterns that are mechanically robust is essential for their optimal functional performance but is difficult to achieve. Here, a bioprinting...journal article 2021
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Golafshan, Nasim (author), Willemsen, K. (author), Kadumudi, Firoz Babu (author), Vorndran, Elke (author), Dolatshahi-Pirouz, Alireza (author), Weinans, Harrie (author), van der Wal, Bart C.H. (author), Malda, Jos (author), Castilho, Miguel (author)Osteoarthritis of the hip is a painful and debilitating condition commonly occurring in humans and dogs. One of the main causes that leads to hip osteoarthritis is hip dysplasia. Although the current surgical methods to correct dysplasia work satisfactorily in many circumstances, these are associated with serious complications, tissue...journal article 2021
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Ghavidelnia, Naeim (author), Bodaghi, Mahdi (author), Hedayati, R. (author)Mechanical metamaterials are man-made rationally-designed structures that present un-precedented mechanical properties not found in nature. One of the most well-known mechanical metamaterials is auxetics, which demonstrates negative Poisson’s ratio (NPR) behavior that is very beneficial in several industrial applications. In this study, a...journal article 2021
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Tselikos, Georgios (author), Rasul, Shahid (author), Groen, W.A. (author), Li, Chunchun (author), Khaliq, Jibran (author)Three-dimensional printing-based additive manufacturing has emerged as a new frontier in materials science, with applications in the production of functionalized polymeric-based hybrid composites for various applications. In this work, a novel conceptual design was conceived in which an AC electric field was integrated into a commercial 3D...journal article 2021
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Lussenburg, K.M. (author), Sakes, A. (author), Breedveld, P. (author)Additive Manufacturing (AM) or 3D printing has enabled the production of increasingly complex parts that are difficult to produce with conventional manufacturing methods. Its additive nature has made it possible to create interlocking parts in a single production step. This creates opportunities for new ways of designing and producing...review 2021
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Xu, Y. (author), Zhang, H. (author), Gan, Y. (author), Šavija, B. (author)Cementitious materials are widely used in construction. For their low ductility, they typically need to be reinforced by steel rebars, which cause potential corrosion problems. Polymeric reinforcement, which does not have corrosion problems, has been used to replace steel rebars. However, a relatively high reinforcing ratio is usually...journal article 2021
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Boon, W.P.C. (author), van Wee, G.P. (author)3D printing (3DP) is an emerging technology associated with a more tailor-made, distributed way of manufacturing which, if successful, is bound to have repercussions on transport, supply chains, and logistics. This contribution delves into what 3DP is, how it will influence consumer wants and needs, location choices and transport resistance, and...book chapter 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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van Ginkel, H.J. (author), Roels, P. (author), Boeije, M.F.J. (author), Pfeiffer, T.V. (author), Vollebregt, S. (author), Zhang, Kouchi (author), Schmidt-Ott, A. (author)Porous layers composed of nanoparticles (NPs) have a wide range of (potential) applications including catalysts, (chemical) sensors, thermoelectric materials and electronics. These application domains will profit strongly from our NP printing process which is flexible with respect to i) the composition of the NPs and ii) the possibility of...abstract 2020
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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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Saleh, Charbel Miled Nohra (author), Louter, P.C. (author), Turrin, M. (author)This paper investigates the stiffness and the durability of a composite panel that consists of thin glass as outer layers and a 3D printed core element from recycled PET. Thin alumino-silicate glass, mostly used for displays in computers, tablets and smartphones, is known for its flexibility, durability and high bending strength. However, for...conference paper 2020
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Rietveld, M.W.J. (author), de Rijke, D. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)Urban runoff (re)mobilises solids present on the street surface and transport them to urban drainage systems. The solids reduce the hydraulic capacity of the drainage system due to sedimentation and on the quality of receiving water bodies due to discharges via outfalls and combined sewer overflows (CSOs) of solids and associated pollutants....journal article 2020
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Fang, G. (author), Zhang, Tianyu (author), Zhong, Sikai (author), Chen, Xiangjia (author), Zhong, Zichun (author), Wang, C.C. (author)The anisotropy of mechanical strength on a 3D printed model can be controlled in a multi-axis 3D printing system as materials can be accumulated along dynamically varied directions. In this paper, we present a new computational framework to generate specially designed layers and toolpaths of multi-axis 3D printing for strengthening a model by...journal article 2020
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Sobota, V.C.M. (author), van de Kaa, G. (author), Luomaranta, Toni (author), Martinsuo, Miia (author), Ortt, J.R. (author)Purpose: This paper addresses the most important factors for the selection of additive manufacturing (AM) technology as a method of production of metal parts. AM creates objects by adding material layer by layer based on 3D models. At present, interest in AM is high as it is hoped that AM contributes to the competitiveness of Western...journal article 2020
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Rossing, Lars (author), Scharff, R.B.N. (author), Chömpff, Bryan (author), Wang, C.C. (author), Doubrovski, E.L. (author)Silicones have desirable properties such as skin-safety, high temperature-resistance, and flexibility. Many applications require the presence of a hard body connected to the silicone. Traditionally, it has been difficult to create strong bonding between silicones and hard materials. In this study, a technique is presented to control the...journal article 2020
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Chaves Figueiredo, S. (author), Romero Rodriguez, C. (author), Ahmed, Zeeshan Y. (author), Bos, Derk H. (author), Xu, Y. (author), Salet, Theo M. (author), Copuroglu, Oguzhan (author), Schlangen, E. (author), Bos, Freek P. (author)Extrusion based additive manufacturing of cementitious materials has demonstrated strong potential to become widely used in the construction industry. However, the use of this technique in practice is conditioned by a feasible solution to implement reinforcement in such automated process. One of the most successful ductile materials in civil...journal article 2020
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Šavija, B. (author)Additive manufacturing has been a topic of interest in the construction industry for the past decade. 3D printing of concrete structures promises great improvements in construction efficiency, waste reduction, and shape optimization. Another field where additive manufacturing offers opportunities is on the material level of cementitious...review 2020
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Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)This paper reports an extended lattice model for printing process simulation of 3D printed cementitious materials. In this model, several influencing factors such as material and geometric nonlinearity are considered. Using this model, green strength of cementitious material is investigated, deformation and crack pattern can be derived, which...book chapter 2020