Article
Nanoscience & Nanotechnology
Yuki Maegawa, Yosuke Nakata, Atsushi Sanada
Summary: In this article, all-dielectric carpet cloaks composed of jungle gym shaped dielectric unit cells are proposed. A design strategy for three-dimensional anisotropy control based on transformation optics is presented. The carpet cloaks are 3D printable and operate with polarization independent incident waves in arbitrary incident angles.
Article
Mathematics, Interdisciplinary Applications
Juan B. Pascual-Francisco, Orlando Susarrey-Huerta, Leonardo I. Farfan-Cabrera, Rockali Flores-Hernandez
Summary: The creep compliance and creep Poisson's ratio of a 3D-printed Sierpinski carpet-based fractal and its bulk material were experimentally investigated. The study aimed to quantify the change in viscoelastic parameters due to the fractal structure. Tensile creep tests were conducted at different temperatures and stresses to evaluate the response of the fractal and bulk material under the creep phenomenon. It was found that the fractal structure caused a reduction in stiffness and an increase in material compliance.
FRACTAL AND FRACTIONAL
(2023)
Article
Engineering, Electrical & Electronic
Pablo Stuardo, Francisco Pizarro, Eva Rajo-Iglesias
Summary: This article presents the design, construction, and measurement of a 3D-printed spring metasurface loaded with a dielectric 3D-printed substrate. The addition of the dielectric substrate lowers the frequencies where the stopband is generated. The feasibility of implementation for this 3D-printed metasurface topology is confirmed by the measurement results.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2022)
Article
Polymer Science
Doron Kam, Ido Levin, Yinnon Kutner, Omri Lanciano, Eran Sharon, Oded Shoseyov, Shlomo Magdassi
Summary: This article presents an investigation on wood warped objects fabricated by 3D printing. The printing pathway and flow rate can be predesigned to control the resulting structure after drying. By carefully tuning the flow rate and printing pathway, the morphology of the fully dried wooden objects can be controlled.
Article
Engineering, Manufacturing
Freddie Hong, Borut Lampret, Connor Myant, Steve Hodges, David Boyle
Summary: This paper describes a novel method of using a multi-material 5-axis 3D printer to extrude conductive PLA in curved layers. The changes in resistivity of printed traces for different angles and curvatures are characterized. Results show that conformal 3D printing can significantly reduce the resistivity of vertical conductive traces. The paper concludes by successfully fabricating complex conductive patterns onto free-form doubly curved substrates.
ADDITIVE MANUFACTURING
(2023)
Article
Automation & Control Systems
Bu Ping, Jin Huang, Fanbo Meng
Summary: In this study, a part morphology prediction model for curved inkjet 3D printing is developed to predict the surface morphology of printed parts. The model utilizes a surface drop prediction model and a multilayer stacking model to predict the slip and deposition patterns of ink droplets on curved substrates and the evolution of part height and contour shape in printing.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hongjun Liu, Huiren Peng, Ke Li, Liping Lu, Junhong Deng, Yanjun Liu, Chengfeng Qiu, Guixin Li, Xing Cheng
Summary: This work presents a facile thermal transfer printing process for solution-processed ZnO nanostructures, demonstrating its scalability and high transfer accuracy for ZnO-based metasurfaces.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Meijun Qu, Yifan Xu, Wenyu Li, Jianxun Su, Weili Song
Summary: In this article, two kinds of periodic nondiffractive beams along arbitrary trajectories are generated by 3-D-printed all-dielectric metasurfaces. The first step is to produce continuous nonaccelerating and self-acceleration beams. In the second step, the central main lobe of continuous beams is modified into pulsating ones by removing some expanding phase equivalent circles in a periodic fashion and binary modulating of the phase masks. The proposed metasurfaces are expected to have numerous applications such as secure communication.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Materials Science, Multidisciplinary
Hong-Tao Zhou, Wen-Xiao Fu, Yan-Feng Wang, Yue-Sheng Wang, Vincent Laude, Chuanzeng Zhang
Summary: This study introduces a systematic approach to designing ultra-broadband passive metasurfaces by combining broad-band local reflection rules with optimization methods. Experimental results show that the relative bandwidth can exceed 93.33%, higher than previous passive metasurfaces, demonstrating excellent time-domain broadband characteristics.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
Youwei Kang, Lingling Wu, Xiaoyong Tian, Tengfei Liu, Dichen Li, Kunyang Lin, Xiaofei Ma, Ali Akmal Zia
Summary: In this study, a multifunctional metamaterial with unique electromagnetic and mechanical properties is proposed. By designing chiral structures and using 4D printing of continuous fibre composites, a metasurface exhibiting simultaneous electromagnetic frequency selection capability and isotropic negative/positive/near-zero thermal expansion is achieved. The influence of structural parameters on effective thermal expansion coefficient and electromagnetic transmission band is investigated through theoretical calculation, finite element analysis simulations, and experiments. The results show that the electromagnetic functionality of the metasurface can be thermally controlled, making it useful in extreme situations where the coupling of multiphysical fields is required.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Computer Science, Information Systems
Sujan Shrestha, Affan A. Baba, Syed Muzahir Abbas, Mohsen Asadnia, Raheel M. Hashmi
Summary: This study presents a wideband metasurface integrated with a horn antenna using 3D printing technology. By placing a 3D-printed phase transformation surface, the radiation characteristics of the antenna are improved, resulting in increased overall directivity and improved aperture efficiency.
Article
Engineering, Manufacturing
YongAn Huang, Hao Wu, Chen Zhu, Wennan Xiong, Furong Chen, Lin Xiao, Jianpeng Liu, Kaixin Wang, Huayang Li, Dong Ye, Yongqing Duan, Jiankui Chen, Hua Yang, Wenlong Li, Kun Bai, Zhouping Yin, Han Ding
Summary: The study introduces a robotized 'transfer-and-jet' printing strategy for assembling electronic devices on complex surfaces, breaking the constraints of traditional 2D planar microfabrication. This innovative method enables versatile conformal microfabrication for 3D curved electronics.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2021)
Article
Green & Sustainable Science & Technology
Minsu Cha, Chang-Won Kim, Taehee Lee, Baek-Joong Kim, Hunhee Cho, Taehoon Kim, Hyunsu Lim
Summary: This study proposes a 3D printing method for a pair of panels that can hold each other through minimal support, and develops an optimal layout model to minimize non-printing paths. Experimental results show that the proposed optimization model reduces non-printing paths and non-printing time, while improving productivity.
Article
Engineering, Manufacturing
Hirohide Shiratori, Akira Todoroki, Masahito Ueda, Ryosuke Matsuzaki, Yoshiyasu Hirano
Summary: This study proposed a test method for evaluating the strength of curved sections of 3D printed continuous carbon fiber reinforced thermoplastics. Curved beam tests were conducted using L-shaped specimens with designed test jigs, which were verified with finite element analysis. Testing different geometries of L-shaped specimens revealed the effect of radius on circumferential strength, while investigating the failure mechanism through X-ray CT images showed that compressive failure occurred first with decreasing radius.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Computer Science, Information Systems
Adam Steckiewicz, Kornelia Konopka, Agnieszka Choroszucho, Jacek Maciej Stankiewicz
Summary: This article presents novel 3D printed sensors for temperature measurement, utilizing a planar structure of resistive elements that can be used on curved and irregular surfaces. The flexibility of the detectors allows for customized designs and the ability to withstand possible damage. The nonlinear effect of temperature on resistance is experimentally determined, leading to the derivation of analytical formulas.
Article
Materials Science, Multidisciplinary
Zijie Jiang, Qingxuan Liang, Zhaohui Li, Peiyao Lv, Tianning Chen, Dichen Li
ADVANCED OPTICAL MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Zijie Jiang, Qingxuan Liang, Zhaohui Li, Tianning Chen, Dichen Li, Yang Hao
ADVANCED OPTICAL MATERIALS
(2020)
Article
Engineering, Electrical & Electronic
Qingxuan Liang, Zhen Yang, Jianyong Guo, Zhaohui Li, Tianning Chen, Dichen Li
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Materials Science, Multidisciplinary
Qingxuan Liang, Yutao Wu, Peiyao Lv, Jin He, Fuyin Ma, Tianning Chen
Summary: In this study, a composite acoustic metasurface is proposed, which combines gradient hybrid unit structure and multistage sound-absorbing peaks to achieve efficient low-frequency broadband noise control. With a high average sound absorption coefficient and excellent mechanical performance from the designed honeycomb structures, this metasurface shows great potential for practical application in low-frequency noise control.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Physics, Applied
Qingxuan Liang, Peiyao Lv, Jin He, Yutao Wu, Fuyin Ma, Tianning Chen
Summary: By combining micro-perforated panel, coiled channel, and embedded partition boards, a controllable broadband sound absorbing metasurface with a thickness of only 7 cm has been successfully designed and fabricated, which exhibits a high absorption coefficient and a tunable absorption peak frequency. This opens up new possibilities for applications in the field of low-frequency noise control.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Qingxuan Liang, Zijie Jiang, Zhaohui Li, Xin Wang, Peiyao Lv, Tianning Chen, Dichen Li
Summary: A novel and efficient Bezier-shaped metasurface is proposed for the design of complex curved camouflaging metasurface. It mimics the reflection behaviors of a pre-designed triangular shape to conceal the electromagnetic perception of the original Bezier surface, and possesses a broadband radar cross section reduction capability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Qingxuan Liang, Haoyu Yin, Jiakun Feng, Jiahui Xu, Zhen Yang, Yubing Duan, Dichen Li
Summary: Metasurface demonstrates excellent manipulating capacity for EM wave with ultrathin thickness and simple design. An arched dual-wavelength cloaking-illusion-integrated metasurface is successfully proposed, and a composite-fused deposition molding packaging strategy is explored for fabrication. Simulation and measurement results show polarization-insensitive cloaking and illusion functions of the arched metasurface in specific frequency ranges, with an effective incidence angle range of -45 degrees to 45 degrees. The excellent EM camouflage performance proves the effectiveness of the design and fabrication strategy, paving the way for multifunctional metasurface-based devices.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Qingxuan Liang, Zhaohui Li, Jiahui Xu, Yubing Duan, Zhen Yang, Dichen Li
Summary: A dynamic metasurface device with switchable electromagnetic cloaking and illusion functions is fabricated based on a 4D-printing process. The shape memory polymer allows for control of the structural shape change of the metasurface under temperature stimulation, enabling dynamic cloaking and illusion functions.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Jin He, Qingxuan Liang, Hailang He, Peiyao Lv, Yutao Wu, Miao Wang, Tianning Chen
Summary: In this paper, an acoustic meta-surface is proposed by coupling 15 sub-units to achieve desired low-frequency sound absorption. The designed structure has a customizable sound absorption band and a reversible shape changing property, making it promising for low-frequency noise control applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Automation & Control Systems
Wenqing Zhou, Qingxuan Liang, Tianning Chen
ADVANCED INTELLIGENT SYSTEMS
(2020)
Article
Materials Science, Multidisciplinary
Qingxuan Liang, Zhaohui Li, Zijie Jiang, Yubing Duan, Tianning Chen, Dichen Li
JOURNAL OF MATERIALS CHEMISTRY C
(2020)