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Relevant bibliographies by topics / Printed Periodic Metallic Geometries

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Academic literature on the topic 'Printed Periodic Metallic Geometries'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Printed Periodic Metallic Geometries"

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Sujatha, M. N., and Vijeshree Kadiya. "A subcell based approach for enhancing the absorption bandwidth of microwave absorbers using printed periodic metallic geometries." Engineering Science and Technology, an International Journal 22, no. 1 (2019): 385–90. http://dx.doi.org/10.1016/j.jestch.2018.08.008.

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Gáspár, Igor, and Réka Neczpál. "Testing of 3D Printed Turbulence Promoters for Membrane Filtration." Periodica Polytechnica Chemical Engineering 64, no. 3 (2020): 371–76. http://dx.doi.org/10.3311/ppch.15211.

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Membrane filtration process can be intensified by using static mixers inside tubular membranes. Most of commercial static mixers are optimized for mixing fluids, not for membrane filtration. We have developed new turbulence promoter geometries designed for intensification of permeate flux and retention without significant pressure drop along the membrane. In previous experiments, we used metallic turbulence promoters, but in this work, FDM 3D printing technology was used to create these improved geometries, which are new in membrane filtration and they have the same geometry as existing metall

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Zhao, Zijian, Guang Yang, and Kun Zhao. "3D Printing of Mg-Based Bulk Metallic Glasses with Proper Laser Power and Scanning Speed." Metals 12, no. 8 (2022): 1318. http://dx.doi.org/10.3390/met12081318.

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Additive manufacturing allows for the fabrication of large-sized metallic glasses with complex geometries, which overcomes the size limitation due to limited glass-forming ability. To investigate the effect of synthesis parameters on the Mg-based metallic glasses, Mg65Cu20Zn5Y10 was fabricated by laser-based powder bed fusion under different scanning speeds and laser powers. For high energy density, the samples showed severe crystallization and macrocracks, while for low energy density, the samples contained pore defects and unfused powders. Three-dimensionally printed samples were used for th

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Wang, Jun, Rahul Rai, and Jason N. Armstrong. "Investigation of compressive deformation behaviors of cubic periodic cellular structural cubes through 3D printed parts and FE simulations." Rapid Prototyping Journal 26, no. 3 (2019): 459–72. http://dx.doi.org/10.1108/rpj-03-2019-0069.

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Purpose This paper aims to clarify the relationship between mechanical behaviors and the underlying geometry of periodic cellular structures. Particularly, the answer to the following research question is investigated: Can seemingly different geometries of the repeating unit cells of periodic cellular structure result in similar functional behaviors? The study aims to cluster the geometry-functional behavior relationship into different categories. Design/methodology/approach Specifically, the effects of the geometry on the compressive deformation (mechanical behavior) responses of multiple sta

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Su, Huanhuan, Shan Wu, Yuhan Yang, et al. "Surface plasmon polariton–enhanced photoluminescence of monolayer MoS2 on suspended periodic metallic structures." Nanophotonics 10, no. 2 (2020): 975–82. http://dx.doi.org/10.1515/nanoph-2020-0545.

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AbstractPlasmonic nanostructures have garnered tremendous interest in enhanced light–matter interaction because of their unique capability of extreme field confinement in nanoscale, especially beneficial for boosting the photoluminescence (PL) signals of weak light–matter interaction materials such as transition metal dichalcogenides atomic crystals. Here we report the surface plasmon polariton (SPP)-assisted PL enhancement of MoS2 monolayer via a suspended periodic metallic (SPM) structure. Without involving metallic nanoparticle–based plasmonic geometries, the SPM structure can enable more t

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Sangiorgio, Valentino, Fabio Parisi, Francesco Fieni, and Nicola Parisi. "The New Boundaries of 3D-Printed Clay Bricks Design: Printability of Complex Internal Geometries." Sustainability 14, no. 2 (2022): 598. http://dx.doi.org/10.3390/su14020598.

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The building construction sector is undergoing one of the most profound transformations towards the digital transition of production. In recent decades, the advent of a novel technology for the 3D printing of clay opened up new sustainable possibilities in construction. Some architectural applications of 3D-printed clay bricks with simple internal configurations are being developed around the world. On the other hand, the full potential of 3D-printed bricks for building production is still unknown. Scientific studies about the design and printability of 3D-printed bricks exploiting complex int

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Agyapong, Johnson N., Bo Van Durme, Sandra Van Vlierberghe, and James H. Henderson. "Surface Functionalization of 4D Printed Substrates Using Polymeric and Metallic Wrinkles." Polymers 15, no. 9 (2023): 2117. http://dx.doi.org/10.3390/polym15092117.

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Wrinkle topographies have been studied as simple, versatile, and in some cases biomimetic surface functionalization strategies. To fabricate surface wrinkles, one material phenomenon employed is the mechanical-instability-driven wrinkling of thin films, which occurs when a deforming substrate produces sufficient compressive strain to buckle a surface thin film. Although thin-film wrinkling has been studied on shape-changing functional materials, including shape-memory polymers (SMPs), work to date has been primarily limited to simple geometries, such as flat, uniaxially-contracting substrates.

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Lee, Sung-Ho, Sang-Yoon Gee, Chul Kang, and Chul-Sik Kee. "Terahertz Wave Transmission Properties of Metallic Periodic Structures Printed on a Photo-paper." Journal of the Optical Society of Korea 14, no. 3 (2010): 282–85. http://dx.doi.org/10.3807/josk.2010.14.3.282.

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Kim, Jiho, and Dong-Jin Yoo. "3D printed compact heat exchangers with mathematically defined core structures." Journal of Computational Design and Engineering 7, no. 4 (2020): 527–50. http://dx.doi.org/10.1093/jcde/qwaa032.

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Abstract This paper describes a new design method for generating a compact heat exchanger (CHX) computational model consisting of triply periodic minimal surface (TPMS) core structures. These TPMS-based core structures are not easy to design using existing CAD systems, especially in the case of CHXs with complex 3D geometries. In this paper, we introduce a novel CHXs design strategy based on the calculation of volumetric distance fields (VDFs). All geometric components, including TPMS-based core structure, heat exchanger exterior shape, and a set of parts for inlet and outlet, are expressed as

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Zhai, Guohua, Yong Cheng, Qiuyan Yin, Shouzheng Zhu, and Jianjun Gao. "Uniplanar Millimeter-Wave Log-Periodic Dipole Array Antenna Fed by Coplanar Waveguide." International Journal of Antennas and Propagation 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/430618.

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A uniplanar millimeter-wave broadband printed log-periodic dipole array (PLPDA) antenna fed by coplanar waveguide (CPW) is introduced. This proposed structure consists of several active dipole elements, feeding lines, parallel coupled line, and the CPW, which are etched on a single metallic layer of the substrate. The parallel coupled line can be optimized to act as a transformer between the CPW and the PLPDA antenna. Meanwhile, this transform performs the task of a balun to achieve a wideband, low cost, low loss, simple directional antenna. The uniplanar nature makes the antenna suitable to b

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Dissertations / Theses on the topic "Printed Periodic Metallic Geometries"

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Sujatha, M. N. "Analysis of Printed Periodic Structures and Their Applications in Antennas and Absorbers." Thesis, 2015. https://etd.iisc.ac.in/handle/2005/4937.

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To meet the demand of continuously growing RF and microwave technologies, scientists and engineers have developed innovative materials consisting of conducting and dielectric materials that overcome limitations in the properties of natural materials. Over the last decades, the development of these artificial materials has evolved to be a new field. An artificial material is a synthesized material that gains its electromagnetic properties from its structure rather than inheriting them directly from those it is composed of. Planar versions of these artificial materials are often characteri

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Conference papers on the topic "Printed Periodic Metallic Geometries"

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Sparenberg, Marc, and Jörg Melcher. "Modified Triply Periodic Actuator Topologies." In ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/smasis2022-91015.

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Abstract The concept of a new piezoelectric actuator design is the focus of an ongoing smart structures research at DLR. It envisages actuator geometries, that have their template in nature and are aimed at optimally transfering their mechanical power to the structure in which they are integrated. The second aspect can only be achieved in case of an impedance matching. We found out, that these very specific designs have highly interesting differential geometry descriptions and that these geometries can be realized in a congenial combined manufacturing procedure: we start with 3D-printed filigr

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Xiong, Yichen, and Bing Zhang. "A Metallic 3D Printed Miniaturized Quasi Log Periodic Koch-Dipole Antenna Using T-Shaped Top Loading." In 2020 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2020. http://dx.doi.org/10.1109/imws-amp49156.2020.9199763.

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Wang, Jun, and Rahul Rai. "Classification of Bio-Inspired Periodic Cubic Cellular Materials Based on Compressive Deformation Behaviors of 3D Printed Parts and FE Simulations." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59729.

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Bio-inspired materials have shown to have outstanding mechanical properties over man-made materials and are becoming of increasing interest in many fields of practical applications. Additionally, recent advances in materials and fabrication technologies allow for the design and fabrication of micro- and nano-scale structures to serve as cellular units in macro-scale materials. The mechanical behaviors of cellular solids, including stiffness and strength, can be tuned by simply tailoring the underlying geometry of the structure. In this paper the answer to the following research question is inv

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Hussain, Shahadat, Ali N. Alagha, and Wael Zaki. "Inhomogeneous Microstructure due to Non-Uniform Solidification Rate in NiTi Triply Periodic Minimal Surface (TPMS) Structures Fabricated via Laser Powder Bed Fusion." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95320.

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Abstract In recent times, interest in the fabrication of porous NiTi structures have grown significantly. Porous structures have remarkable potential to be used in the areas of tissue engineering, impact absorption, and fluid permeability. However, fabrication of NiTi structures poses challenges such as poor machinability, high work hardening, and inherent springback effects, which render them difficult to tackle through conventional manufacturing routes. Additive manufacturing (AM) can alleviate the aforementioned issues associated with NiTi shape memory alloys (SMAs). In addition, this techn

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Cicero, Sergio, Víctor Martínez-Mata, and Sergio Arrieta. "Analysis of the Load Bearing Capacity of Cracked Additively Manufactured Polymers Using Failure Assessment Diagrams." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-78280.

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Abstract Failure Assessment Diagrams (FADs) are, in practice, the main engineering tool for the analysis of structural components containing cracks. They are utilised in well-known structural integrity assessment procedures, such as BS7910 and API 579 1/ASME FFS 1, and their reliability has been proven by numerous laboratory tests and industrial applications. However, they have been defined and validated in metallic materials, so their application in other types of materials requires demonstrating that the different assumptions taken when analysing metals are also valid for the particular mate

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Khadka, Nishan, Yucheng Yang, John Haug, et al. "Ultrafast Laser Texturing of Metal Surfaces: Effects of Process Parameters on Surface Reflectance and Possibility of Hierarchical Structuring." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-85663.

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Abstract Ultrafast laser processing has been widely studied for surface texturing. The complex interaction between the laser energy, plasma, and surface chemistry produces complex morphologies including Laser-Induced Periodic Surface Structures and random higher aspect ratio geometries. Laser texturing allows engineering of metallic surface’s wettability as well as the reflectance on either broadband or narrowband basis. This paper experimentally maps the laser process parameters to the surface morphology and diffuse reflectance for stainless steel, aluminum, and copper substrates. All experim

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Zhang, Yaqi, Vadim Shapiro, and Paul Witherell. "Scalable Thermal Simulation of Powder Bed Fusion." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22628.

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Abstract Powder bed fusion (PBF) has become a widely used additive manufacturing (AM) technology to produce metallic parts. Since the PBF process is driven by a moving heat source, consistency in part production, particularly when varying geometries, has proven difficult. Thermal field evolution during the manufacturing process determines both geometric and mechanical properties of the fabricated components. Simulations of the thermal field evolution can provide insight into desired process parameter selection for a given material and geometry. Thermal simulation of the PBF process is computat

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Reports on the topic "Printed Periodic Metallic Geometries"

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Slattery, Kevin. Unsettled Topics on Surface Finishing of Metallic Powder Bed Fusion Parts in the Mobility Industry. SAE International, 2021. http://dx.doi.org/10.4271/epr2021001.

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Laser and electron-beam powder bed fusion (PBF) additive manufacturing (AM) technology has transitioned from prototypes and tooling to production components in demanding fields such as medicine and aerospace. Some of these components have geometries that can only be made using AM. Initial applications either take advantage of the relatively high surface roughness of metal PBF parts, or they are in fatigue, corrosion, or flow environments where surface roughness does not impose performance penalties. To move to the next levels of performance, the surfaces of laser and electron-beam PBF componen

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