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Mechanics of bioinspired functionally graded soft-hard composites made by multi-material 3D printingMirzaali, Mohammad J. (author), Herranz de la Nava, A. (author), Gunashekar, D. (author), Nouri Goushki, M. (author), Veeger, R. P.E. (author), Grossman, Q. (author), Angeloni, L. (author), Ghatkesar, M.K. (author), Fratila-Apachitei, E.L. (author), Ruffoni, D. (author), Doubrovski, E.L. (author), Zadpoor, A.A. (author)Functional gradients are material transitions that are found in nature and are known to result in materials with superior properties and multiple functionalities. The emerging multi-material 3D printing (=additive manufacturing, AM) techniques provide a powerful tool for the design and fabrication of bioinspired functionally graded materials ...journal article 2020
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Razzi, F. (author), Fratila-Apachitei, E.L. (author), Fahy, N. (author), Bastiaansen-Jenniskens, Yvonne M. (author), Apachitei, I. (author), Farrell, E. (author), Zadpoor, A.A. (author)Additive manufacturing (AM) techniques have provided many opportunities for the rational design of porous metallic biomaterials with complex and precisely controlled topologies that give rise to unprecedented combinations of mechanical, physical, and biological properties. These favorable properties can be enhanced by surface...journal article 2020
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Huisman, D. J. (author), Bach, A. (author), Ngan-Tillard, D.J.M. (author), Joosten, I. (author), van den Eynde, G. (author)We investigated the characteristics of a group of 13 Middle Iron Age egg-shaped crucibles and crucible fragments from Tilburg (The Netherlands). We used a combination of optical and chemical analyses, including hand-held XRF, microCT scanning and 3-D printing polarizing light microscopy and SEM-EDX. The chemical analyses confirmed that 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
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Xu, Y. (author), Schlangen, E. (author), Šavija, B. (author)Mechanical behavior of cementitious cellular composites (CCC) with auxetic behavior was investigated under uniaxial compression and cyclic loading. Three cellular structures with different geometrical parameters are designed and prepared by 3D printing technique. Meanwhile, plain mortar and fiber reinforced mortar are used as constituent...book chapter 2020
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Soltani, Aref (author), Noroozi, Reza (author), Bodaghi, Mahdi (author), Zolfagharian, Ali (author), Hedayati, R. (author)Modeling and analyzing the sports equipment for injury prevention, reduction in cost, and performance enhancement have gained considerable attention in the sports engineering community. In this regard, the structure study of on-water sports board (surfboard, kiteboard, and skimboard) is vital due to its close relation with environmental and...journal article 2020
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Saraswat, Yug C. (author), Ibis, F. (author), Rossi, L. (author), Sasso, L. (author), Eral, H.B. (author), Fanzio, P. (author)Hypothesis: Our ability to dictate the colloid geometry is intimately related to self-assembly. The synthesis of anisotropic colloidal particles is currently dominated by wet chemistry and lithographic techniques. The wet chemical synthesis offers limited particle geometries at bulk quantities. Lithographic techniques, on the other hand,...journal article 2020
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Gunda, Arun (author), Özkayar, G. (author), Tichem, M. (author), Ghatkesar, M.K. (author)Microvalves are important flow-control devices in many standalone and integrated microfluidic applications. Polydimethylsiloxane (PDMS)-based pneumatic microvalves are commonly used but they generally require large peripheral connections that decrease portability. There are many alternatives found in the literature that use Si-based microvalves,...journal article 2020
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Nouri Goushki, M. (author), Mirzaali, Mohammad J. (author), Angeloni, L. (author), Fan, D. (author), Minneboo, M.B. (author), Ghatkesar, M.K. (author), Staufer, U. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)Fabricating large areas of geometrically complex and precisely controlled topographies is required for the studies of cell behavior on patterned surfaces. Direct laser writing (DLW) is an advanced 3D-fabrication technique, which facilitates the manufacturing of structures within various scales (from a few hundred nanometers to millimeters)....journal article 2020
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van Assenbergh, S.P. (author), Haring, Frank (author), Dijksman, Joshua A. (author), Dodou, D. (author)Reversible attachment on soft substrates is useful in a range of applications, including soft robotics and soft-tissue surgical instrumentation. On rigid substrates, the use of micropatterned adhesives has been extensively explored. It has been shown that surface micropatterns provide conformability, thereby enabling the formation and...journal article 2020
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Hornus, Samuel (author), Kuipers, T. (author), Devillers, Olivier (author), Teillaud, Monique (author), Martínez, Jonàs (author), Glisse, Marc (author), Lazard, Sylvain (author), Lefebvre, Sylvain (author)In most layered additive manufacturing processes, a tool solidifies or deposits material while following pre-planned trajectories to form solid beads. Many interesting problems arise in this context, among which one concerns the planning of trajectories for filling a planar shape as densely as possible. This is the problem we tackle in the...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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Coppens, Jessica (author)This master thesis is a graduation project of the master study Integrated Product Design at Delft University of Technology. It was executed in collaboration with the Material Experience Lab in the faculty Industrial Design Engineering. The project follows the Material Driven Design method by Elvin Karana. The material being researched is the...master thesis 2019
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Martoredjo, Ruth (author)In the field of prostheses, significant developments have been accomplished so far in low-cost prosthetic limbs using 3D printing technology. However, when it comes to prosthetic hands, 3D printed prosthetic hands are still limited in their grasping ability, such as the adaptability to the shape of an object and a sufficient pinch force level...master thesis 2019
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van Aken, Joris (author)Cartilage repair remains a major challenge and treatment of osteochondral defects generally results in inferior quality fibrous repair tissue. This study aims to elaborate on the work of Korthagen et al. who developed a thermoplastic polyurethane and polyetherketoneketone implant to treat osteochondral defects. Although promising results were...master thesis 2019
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Martinez De Apellaniz Goenaga, Ion (author)Introduction: Recently 3D printing has received an increasing attention on the area of actuators. It can provide design freedom allowing complex geometries, as well as customization, among other benefits. However, there is no research on 3D printing of hydraulic piston-cylinder systems. The aim of this article is to check the feasibility of 3D...master thesis 2019
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Elkhuizen, W.S. (author)The appearance of a painting cannot solely be described by the depiction that it presents to the viewer. When viewing the artifact in real life, we find that the painted surface is in effect a three-dimensional landscape of paint. Paintings, “moveable, largely two-dimensional images created for the primary purpose of providing a visual...doctoral thesis 2019
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Dees, Bram (author)Radically new technologies, of which ‘the functionality was new to the market or the price-performance ratio was much better than contemporary products’ (Ortt, 2012), can be both risky and rewarding to develop. The innovation phase is the period from invention of a radically new technology until the first market introduction. This research into...master thesis 2019