- document
-
Pajonk, A.M. (author), Luna-Navarro, Alessandra (author), Knaack, U. (author), Blum, Ulrich (author)Additive Manufacturing with Varying Material Properties enables controlled spatial variation of material properties in 3D-printed components, facilitating custom-tailored characteristics, added functionalities and reduced assembly processes. To promote this approach in building façade applications, this paper presents a novel framework for...journal article 2024
- document
-
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
- document
-
Sun, Yubo (author), Mohan, Manu K. (author), Tao, Yaxin (author), Zhang, Yi (author), Van Tittelboom, Kim (author), Ye, G. (author), De Schutter, Geert (author)To properly control the reaction kinetics and fresh properties evolution in conventional alkali-activated materials (AAMs), a conceptual design of two-stream AAMs has been proposed in this study. This is achieved by dividing the solid and liquid components in AAMs, including blast furnace slag (BFS) and electric arc furnace slag (EFS)...journal article 2024
- document
-
Zillen, Eva (author), van der Windt, B. (author), Vallery, H. (author), Smit, G. (author)Background: Pneumatic actuators are widely used in applications like (medical) robots, or prostheses. Pneumatic actuators require a complex manufacturing process and are produced in standardized dimensions to reduce costs. Over the last decade 3D-printing has emerged as a cost-effective and efficient production method in medical applications....journal article 2024
- document
-
Salandova, M. (author), Leeflang, M.A. (author), Klimopoulou, M. (author), Fratila-Apachitei, E.L. (author), Apachitei, I. (author), Zadpoor, A.A. (author)This study proposes a new concept for an on-demand drug releasing device intended for integration into additively manufactured (i.e., 3D printed) orthopedic implants. The system comprises a surface with conduits connected to a subsurface reservoir used for storage and on-demand release of antimicrobial agents, covered with a cap that prevents...journal article 2024
- document
-
Kalloe, S.A. (author), Hofland, Bas (author), van Wesenbeeck, B (author)Vegetation in front of levees, dikes and seawalls can decrease wave energy and therefore contribute to the safety against flooding. However, wave damping predictions by vegetation are still inaccurate due to measurement and modelling uncertainties. Many studies focused on finding reliable predictive tools using scaled flume tests with...journal article 2024
- document
-
Xu, Y. (author), Meng, Z. (author), Bol, R.J.M. (author), Šavija, B. (author)A novel highly compressible auxetic cementitious composite (ACC) is developed in this work. Contrary to conventional cementitious materials, such as plain concrete and fiber reinforced concrete, the ACC shows strain-hardening behavior under uniaxial compression: the stress continuously increases with strain up to approximately 40 % strain. On...journal article 2024
- document
-
Xu, J. (author), Doubrovski, E.L. (author), Ozdemir, Mehmet (author), Geraedts, Jo M.P. (author), Song, Y. (author)Structural electronics has garnered significant attention in the past decade. However, there remains a lack of a systematic approach in designing and manufacturing sensors that leverage both mechanical and electronic properties of materials for different applications. In this paper, we introduce a method for designing piezoresistive force...journal article 2024
- document
-
Mohammadi, Kaivan (author), Shafia, Moein (author), Akbari, Javad (author), Hedayati, R. (author)Pentamodes (first conceived theoretically by Milton and Cherkaev) are a very interesting class of mechanical metamaterials that can be used as building blocks of structures withdecoupled bulk and shear moduli. The pentamodes usually are composed of double cone-shaped struts with the middle diameter being large and the end diameters being tiny...journal article 2024
- document
-
Schuller, Tomás (author), Jalaal, Maziyar (author), Fanzio, P. (author), Galindo-Rosales, Francisco J. (author)The optimal design seeks the best possible solution(s) for a mechanical structure, device, or system, satisfying a series of requirements and leading to the best performance. In this work, optimized nozzle shapes have been designed for a wide range of polymer melts to be used in extrusion-based additive manufacturing, which aims to minimize...journal article 2024
- document
-
de Vries, Sietse (author), Schuller, Tomás (author), Galindo-Rosales, Francisco J. (author), Fanzio, P. (author)Fused Filament Fabrication is an additive manufacturing technique in which molten thermoplastic polymers are extruded through a nozzle. Therefore, the interplay between the viscoelastic nature of the polymer melt, temperature, printing conditions and nozzle shape may lead to inconsistent extrusion. To improve the extrusion control and...journal article 2024
- document
-
de Winter, Jikke (author), Manzaneque Garcia, T. (author), Ghatkesar, M.K. (author)The emerging high-resolution 3D printing technique called two-photon polymerization (2PP) enables to print devices bottom-up rapidly, contrary to the top-down lithography-based fabrication methods. In this work, various polymer microbeams are 3D printed and their resonant characteristics are analyzed to understand the origin of damping. The...journal article 2024
- document
-
Calabrese, G.C. (author), Hidding, A.J. (author), Bier, H.H. (author)This chapter presents a review of cementless materials for 3D printing, with a specific emphasis on the utilization of volcanic ash in the context of a case study for off-Earth construction. As a highly promising alternative to traditional concrete, selected binders are investigated in relation to volcanic ash for the creation of an alternative...book chapter 2024
- document
-
Wong, J.S.Y. (author), Așut, Serdar (author), Brancart, S. (author)Along with the circular bioeconomy principles, alternative ways of utilizing biomass waste streams are considered viable approaches to reaching sustainability goals. Accordingly, a growing body of literature is exploring new materials utilizing biomass in 3D-printing applications. This article presents early-stage research that initially...journal article 2024
- document
-
Trauzettel, F. (author), Vander Poorten, Emmanuel (author), Ourak, Mouloud (author), Dankelman, J. (author), Breedveld, P. (author)While articulated surgical instruments have enabled the proliferation of minimally invasive interventions, procedures such as laparo-endoscopic single-site surgery are waning in popularity. One potential reason for this decline is a lack of sufficiently dexterous instruments. Although multi-steerable instruments exist, these are often complex...journal article 2024
- document
-
Yarali, E. (author), Mirzaali, Mohammad J. (author), Ghalayaniesfahani, A. (author), Accardo, A. (author), Diaz Payno, P.J. (author), Zadpoor, A.A. (author)4D (bio-)printing endows 3D printed (bio-)materials with multiple functionalities and dynamic properties. 4D printed materials have been recently used in biomedical engineering for the design and fabrication of biomedical devices, such as stents, occluders, microneedles, smart 3D-cell engineered microenvironments, drug delivery systems, wound...review 2024
- document
-
Gallucci, G. (author), Jaarsma, Victor (author), Hunt, A. (author)High strains of the relaxor ferroelectric polymers allows to build efficient actuators. While the mechanical impedance of such actuators can be optimized via their morphology, their practical realization requires flexible and versatile fabrication processes. This work devises an efficient procedure for manufacturing unimorph bending actuators...conference paper 2024
- document
-
Shen, Kefu (author)Nowadays, with the rapid development of 3D printing technology, more and more applications of this technology can be seen in daily life, and architecture is one of the important directions. There are already a lot of creative buildings completed by 3D printing in the world, and many of them have already been put into use. One of the big...master thesis 2023
- document
-
Henssen, Anne (author)With growing concern over our reliance on non-renewable resources and the environmental impact of conventional manufacturing, the quest for sustainable materials and production processes has intensified. This pursuit has extended to the field of additive manufacturing, where bio-materials have emerged as promising alternatives, aiming to reduce...master thesis 2023
- document
-
ARGYROPOULOS, THANASIS (author)Background: In the field of orthoses for the treatment of forearm injuries, there is a growing clinical demand for more precise and individualized health monitoring technologies. The integration of additive manufacturing techniques with wearable electronics has gained significant interest in this field, emerging as a prominent treatment option...master thesis 2023