Article
Engineering, Mechanical
Shengnan Lyu, Bo Qin, Huichao Deng, Xilun Ding
Summary: This paper introduces a novel family of cellular mechanical metamaterials based on rigid foldable square-twist origami, with tunable Poisson's ratios achieved by adjusting design factors. The kinematics, rigid-foldability, and influences of various combination schemes on in-plane and out-plane Poisson's ratios of square-twist origami are studied. Following a mapping relationship between design factors and Poisson's ratio, cellular mechanical metamaterials with tunable Poisson's ratios can be designed for engineering applications.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Diego Misseroni, Phanisri P. Pratapa, Ke Liu, Glaucio H. Paulino
Summary: This study presents a novel experimental setup for studying the Poisson effects in 2D origami tessellations. The setup was used to measure the Poisson's ratio of the Morph, Miura-ori, and Eggbox patterns, and the results were consistent with theory and simulations. This experimental technique can be applied to investigate other tunable properties of origami metamaterials.
EXTREME MECHANICS LETTERS
(2022)
Article
Engineering, Civil
Xiang Yu Zhang, Xin Ren, Yi Zhang, Yi Min Xie
Summary: An auxetic metamaterial composed of novel re-entrant unit cells was proposed and achieved more stable and significant auxetic behavior by adding wedge-shaped parts to the conventional re-entrant structure. The mechanical and deformation characteristics of this new material were investigated experimentally and numerically, and the influence of the wedge-shaped part was analyzed through a parametric study.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Multidisciplinary
Xiang Yu Zhang, Xin Ren, Xin Yuan Wang, Yi Zhang, Yi Min Xie
Summary: The study introduced a novel combined tubular structure with tunable stiffness to improve bearing capacity and stability by adjusting the length of the central column. Experimental results verified the effectiveness of the finite element model and examined the compression process and stress-strain curve of the tubular structure.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Mechanics
Xiang-Long Peng, Swantje Bargmann
Summary: A novel lattice structure with tension-compression asymmetrical effective elastic properties has been designed by utilizing unilateral contact and the Poisson effect. The structure can exhibit positive or negative Poisson's ratio in both soft and hard states, with the degree of tension-compression asymmetry being widely tunable through geometric parameters and constituent material properties.
COMPOSITE STRUCTURES
(2021)
Article
Instruments & Instrumentation
Suleyman Nazif Orhan, Seydanur Erden
Summary: This paper presents a comparative numerical study of different 2D and 3D auxetic structures, and investigates the characteristics and mechanical properties of elliptic holes and lozenge grids in the 3D case. The findings show that the elliptical holes structure exhibits a higher negative Poisson's ratio and the 3D re-entrant and 2D arrowhead structures outperform the other auxetics in terms of Young's modulus and stiffness values.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Qingjiang Liu, Haitao Ye, Jianxiang Cheng, Honggeng Li, Xiangnan He, Bingcong Jian, Qi Ge
Summary: We developed a strategy for designing and fabricating stiffness-tunable origami (STO) structures based on thick-panel origami using multimaterial 3D printing. By adjusting the soft hinge position, we tuned the geometric parameter ψ to program the stiffness and strength of origami structures. The printed structures showed great cyclic characteristics and deformation ability. The proposed approach can be implemented in various origami patterns to design and tune the mechanical properties of origami structures for many potential applications.
ACTA MECHANICA SOLIDA SINICA
(2023)
Article
Chemistry, Multidisciplinary
Yongkang Jiang, Yingtian Li, Ke Liu, Hongying Zhang, Xin Tong, Diansheng Chen, Lei Wang, Jamie Paik
Summary: This study presents an ultra-tunable bistable structure that offers a wide range of tunable energy barriers. Various functional robots, including an ultra-sensitive robotic flytrap and a fast catcher, were prototyped using these structures. This work expands the possibilities for bistable structure design and has significant implications for robotics, biomedical engineering, architecture, and kinetic art.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Engineering, Civil
Peng Zeng, Long Huang, Qiqi Li, Lairong Yin, Yuanhan Yang, Tingcong Xie
Summary: In this paper, a class of open-section origami tubes with multiple extraordinary mechanical properties are proposed and their potential applications are explored. The motion patterns and mechanical properties of these structures are studied through kinematic analysis, including the multiple sign-flipping Poisson's ratio and the mono/bistable and zero stiffness modes under compression. The self-locking behavior of the tandem origami tubes is also discussed. Based on the proposed origami cells, the piecewise-stiffness structure and quasi-zero-stiffness structure are constructed and verified through prototype tests.
THIN-WALLED STRUCTURES
(2023)
Article
Biochemistry & Molecular Biology
Maryam Mogheiseh, Ehsan Etemadi, Reza Hasanzadeh Ghasemi
Summary: This study aims to investigate the design, molecular dynamics simulation, and mechanical behavior of DNA origami nanotube structures with honeycomb and re-entrant auxetic cross-sections. The results showed that both structures maintained their structural stability, with the auxetic cross-section exhibiting a negative Poisson's ratio under tensile loading. Furthermore, the auxetic structure had higher values of stiffness, specific stiffness, energy absorption, and specific energy absorption compared to the honeycomb structure, similar to macro-scale structures. Therefore, the re-entrant auxetic structure is proposed as the next generation of DNA origami nanotubes and can aid in the design and fabrication of novel auxetic DNA origami structures.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Physics, Multidisciplinary
Nan Yang, Juncheng Zhuang, Shichuan Wei, Ying Yu
Summary: Structures with multiple deformation paths provide a promising platform for robotics and reprogrammable materials. This paper proposes a new ring-like kirigami structure that exhibits multiple discrete deformation patterns and a continuous shearing deformation pattern. It also demonstrates the capability of constructing various 2D and 3D cellular structures.
FRONTIERS IN PHYSICS
(2022)
Article
Engineering, Mechanical
Zhuang Zhang, Shujie Tang, Weicheng Fan, Yuanhao Xun, Hao Wang, Genliang Chen
Summary: This paper presents the design and analysis of a tendon-driven continuum robot without an elastic backbone, which exhibits high extension ratio, low input pressure, and no radial expansion. The kinetostatics modeling and analysis are developed to predict the motion behavior and control the proposed robot. A prototype is built to validate the design principle and modeling method, showing acceptable positioning accuracy and adjustable structural stiffness.
MECHANISM AND MACHINE THEORY
(2022)
Article
Engineering, Civil
Ehsan Etemadi, Mohaddeseh Gholikord, Muhammad Zeeshan, Hong Hu
Summary: The aim of this paper is to develop two novel in-plane auxetic structures with remarkable stiffness and negative Poisson's ratio (NPR) appropriate for compression and tensile load-bearing structures. The designed structures present tunable NPRs and approximately equal stiffnesses for both compressive and tensile loadings. The comparison results suggest that our developed structures can be considered as strong candidates for the next generation of SDM auxetic structures with high stiffness capability and noticeable NPR values.
THIN-WALLED STRUCTURES
(2023)
Review
Engineering, Civil
Rafael Augusto Gomes, Lucas Antonio de Oliveira, Matheus Brendon Francisco, Guilherme Ferreira Gomes
Summary: This paper summarizes the definitions, designs, analyses, optimizations, mechanical properties, and specific applications of various auxetic tubular structures. It highlights the importance of additive manufacturing and numerical analysis in manufacturing and analyzing these structures. The purpose of this paper is to provide researchers and engineers with a step-by-step methodology for developing and applying auxetic tubular structures.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
Junwei Pan, Meng Li, Jianguo Cai
Summary: In this paper, reinforced honeycombs with nearly 1 m in length were assembled and the effects of relative thickness and corrugated plate angle on Poisson's ratio and mechanical properties were investigated. Additionally, three design strategies were adopted to further regulate Poisson's ratio.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Composites
Xi Liu, Wei Shen, Jincun Fu, Toshiaki Natsuki, Lvtao Zhu
Summary: The 3-D carbon fiber reinforced resin matrix composite tubes were designed and formed using a novel braiding-winding-pultrusion processing technique. The effects of temperature environments on the mechanical responses and damage behaviors of the composite tubes were investigated, and it was found that the structural design of the tubes directly affects their axial bearing capacity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Weihao Yuan, Ziyang Zhang, Yueshan Li, Yudong Huang, Zhengxiang Zhong, Zhen Hu
Summary: In this study, the simultaneous self-healing of matrix and interface damage of fiber-reinforced composites was achieved by integrating extrinsic self-healing based on microcapsules and internal self-healing based on coordination interaction. The high exothermic action of epoxy resin and mercaptan repair agent in the self-healing process was observed using infrared thermal imaging technology for in-situ and real-time damage detection.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Israr Ud Din, Adnan Ahmed, Farah Tarek, Wesley Cantwell, Kamran A. Khan
Summary: In this study, a finite element model driven by XCT was developed to simulate the folding characteristics of origami structures, and the results showed good agreement with experimental data. The study demonstrates the potential application of XCT-driven FE modeling in simulating foldable structures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yishan Yang, Yukang Lai, Song Zhao, Hongguang Chen, Renshu Li, Yongjiang Wang
Summary: This study reports the synthesis of a new transparent fiber reinforced polymer material (tGFRP) with high transparency and superior mechanical properties by controlling the refractive index of epoxy resin and using a novel processing technique.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuhang Liu, Kai Huang, Junfeng Ding, Shangyang Yu, Zhixing Li, Li Zhang, Licheng Guo
Summary: This study proposes a method for accurately predicting the penetration failure load of composites using acoustic emission (AE) data. The method includes a cyclic loading test schedule and an extrapolation method based on uncertainty. The results show that this method can accurately predict the failure load when LR equals 1.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Jinxia Cai, Bing Xie, Yunliang Jiang, Jinshan Lu, Zeyu Li, Pu Mao, Mohsin Ali Marwat, Haibo Zhang
Summary: This research aims to develop ternary nanocomposites composed of polycarbonate, Al2O3 nanoparticles, and BaTiO3 nanowires for capacitive energy-storage. By optimizing the capacitor materials, the discharge energy density and efficiency have been improved, and the superiority of the ternary polymer nanocomposites for dielectric energy-storage has been validated through finite element analysis.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Hon Lam Cheung, Mohsen Mirkhalaf
Summary: The aim of this study is to develop physics-based models and establish a structure-property relationship for short fiber composites. High-fidelity full-field simulations are computationally expensive and time-consuming, so the use of artificial neural networks and transfer learning technique is proposed to solve this issue and improve modeling accuracy and efficiency.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yue Jiang, Juyoung Leem, Ashley M. Robinson, Shuai Wu, Andy H. Huynh, Dongwon Ka, Ruike Renee Zhao, Yan Xia, Xiaolin Zheng
Summary: The effect of interface engineering on the combustion and mechanical performance of high-loading B/HTPB composites was investigated in this study. It was found that both covalently bonded and nonpolar/nonpolar interfaces effectively reduced the aggregation of B particles, promoting combustion efficiency and burning rate, and enhancing the mechanical properties of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
R. Mohsenzadeh, B. H. Soudmand, A. H. Najafi, M. Fattahi, D. P. Uyen
Summary: This study examines the morphological features of nano-zeolite nanoparticles incorporated into ultra-high molecular weight polyethylene nanocomposites. The dispersion of nanoparticles within the polymer matrix was improved following nano-zeolite incorporation. The size and distribution of nanoparticles were determined through tailored histograms, and the effective elastic moduli of nanocomposites were calculated, considering interfacial effects.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Chunming Ji, Jiqiang Hu, Rene Alderliesten, Jinchuan Yang, Zhengong Zhou, Yuguo Sun, Bing Wang
Summary: This paper investigates the effect of impact damage on the fatigue behavior of CF/PEEK-titanium hybrid laminates. A fatigue life model is proposed to predict the S-N curves of the laminates based on energy dissipation approach. The energy dissipation behavior of the laminates under different experimental conditions is analyzed through post-impact fatigue tests, and the correlation between impact damage and fatigue dissipation energy is determined. The validity of the proposed model is verified through fatigue tests under different stress ratios and impact energy levels.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shaokai Hu, Ping Han, Chao Meng, Ying Yu, Shaolong Han, Haoyu Wang, Gang Wei, Zheng Gu
Summary: This study decorates MXene on the surface of carbon fiber using different bonding interactions to improve the interface adhesion and mechanical properties of carbon fiber-reinforced polymers composites (CFRPs). The results demonstrate that CFRPs reinforced by CF-c-MXene show the optimal properties, with significant improvements in impact strength and interfacial shear strength compared to the unsized carbon fiber-reinforced composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Steven U. Mamolo, Henry A. Sodano
Summary: This study demonstrates that chlorination of ANFs and oxygen plasma treatment of carbon fibers enables the formation of a chlorinated ANF (Cl-ANF) interphase, resulting in a 79.8% increase in interfacial shear strength and a 33.7% increase in short beam strength in CFRP composites. This method provides a rapid and reliable process to improve the mechanical properties of CFRPs without degrading the tensile strength of the carbon fibers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuyang Zhang, Huimin Li, Xin Liu, Yanhong Chen, Chengwei Qin, Daining Fang
Summary: Establishing a prediction model for the mechanical properties of three-dimensional tubular braided composites at different temperatures is of great significance. This study adopted a multi-scale modeling framework based on micro-computed tomography to consider the characteristics of the real yarn cross section and establish a realistic trans-scale finite element model for the composites. The predicted mechanical properties were found to be significantly affected by temperature.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shengtao Dai, Fei Yan, Jiaming Guo, Huiru Hu, Yu Liu, Liu Liu, Yuhui Ao
Summary: This study successfully synthesized a hyperbranched waterborne polyurethane sizing agent and cellulose nanocrystal modified zinc oxide nanohybrids to improve the interface and properties of carbon fiber reinforced composites. The modified composites exhibited remarkable enhancements in mechanical properties and exceptional UV resistance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Libera Vitiello, Martina Salzano de Luna, Veronica Ambrogi, Giovanni Filippone
Summary: The identification of the percolation threshold in short fiber composites is crucial for assessing material properties and biodegradation speed. In this study, an original rheological approach was used to estimate the percolation threshold of hemp and kenaf-based composites, which showed good agreement with conventional dielectric spectroscopy analyses.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)