Review
Engineering, Manufacturing
Mingyang Chen, Chi Zhang, Liao-Liang Ke
Summary: By employing a multi-scale modeling scheme, researchers have successfully resolved the stress distributions within the S2 layer at different moisture levels. They found that the shear stress on the fibril-matrix interface is smaller due to the heterogeneous nature of the microfibrils. Additionally, they demonstrated that the stress developed during dehydration is larger than during hydration, attributed to the softening of the amorphous polymers in the matrix upon water adsorption.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Fei Peng, Tingting Shan, Rongrui Chen, Jiulong Shi, Di Liu, Guoqiang Zheng, Chaojun Gao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Janus polymer films with distinct surface performance and potential applications were successfully prepared by vacuum-assisted hot-compressing method and spray coating. These films exhibit decent actuation performance and rapid selfpowered sensing property, and can be used for real-time acetone monitoring system.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Wenwu Zhang, Helezi Zhou, Bin Huang, Huamin Zhou, Xiongqi Peng
Summary: This paper investigates the tool-ply friction behavior of jute/PLA biocomposites in thermoforming. A pull-through friction testing device was developed to characterize the tool-ply friction behavior of jute/PLA prepreg at elevated temperature. The effects of alkali treatment, fiber orientation, normal force, and slipping velocity were studied, and a quantitative definition of tool-ply friction behavior was achieved. The results indicate a strong relationship between tool-ply friction behavior and woven and fiber structures, indicating hydrodynamic lubrication.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Congcong Lou, Bing Liu, Xufeng Cao, Liang Gao, Shouhu Xuan, Huaxia Deng, Xinglong Gong
Summary: The article introduces a magnetorheological metamaterial (MRM) with negative regulation and low-frequency bandgaps fabricated using dual-modulus 3D printing technology. Theoretical analysis and experimental results show that the bandgaps of this metamaterial can be adjusted under an external magnetic field, making it potentially applicable in the field of vibration isolation.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yu Tian, Shuran Li, Mengze Li, Yihan Fu, Weidong Zhu, Keping Yan, Yinglin Ke
Summary: A universal spatiotemporal electrified (STE) approach is proposed to efficiently separate individual constituents from agglomerates, achieving one-step dispersion in the gas phase. The approach operates through periodic weak spark loosening and spatial electric field attraction, allowing for real-time separation and outputting of individual micro/nanomaterials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Hanying Du, Jiaqi Ren, Donglin Zhang, Xiang Li, Wenchao Zhang, Rongjie Yang
Summary: This study presents a porous nickel nanoparticle supported on silica/carbon composite material, which exhibits strong and broadband microwave absorption. The optimized composite material shows excellent absorption performance at ultra-low filling ratio and possesses multiple properties.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xin Wang, Yiting Qu, Junlei Bai, Fujun Xu, Bin Ding, Xiaohua Zhang
Summary: A solution-based strategy is proposed to achieve a strong bond between fibers and matrix in powder materials, resulting in improved mechanical properties, thermal conductivity, and fracture strain of the composites. The method also offers advantages such as enhanced powder flowability and thermal stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yuhao Tan, Yanxue Ma, Jingyan Liu, Zongjun Liu, Fengfan Wu, Yuling Li
Summary: This study demonstrates the application of flock-reinforced shear thickening gel in protective equipment. Three-dimensional woven fabrics with folded structures were efficiently manufactured using a modified loom, and 3D FRSTG/woven fabric composites were produced through a simple inclusion procedure. These composites exhibit flexibility and breathability, and show responsive impact resistance. Wearable protective applications prove the integration of breathability and impact resistance in these composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Zhaojie Li, Liang Liu, Rui Bao, Jianhong Yi, Caiju Li, Xiaofeng Chen, Chunxuan Liu
Summary: A novel carbon-based nanomaterial, carbonized polypyrrole nanotubes (C-PNTs), was used to fabricate copper composites. C-PNTs exhibited excellent self-dispersion characteristics and inherent interface bonding. Compared with commercially available carbon nanotubes (CNTs)/Cu composites, 0.3 vol% C-PNTs/Cu composites achieved significant improvement in mechanical-electrical properties and exhibited better corrosion resistance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Wei Tan, Lixiao Gao, Jingna Su, Chunlong Zuo, Yuanlin Ren, Xiaohui Liu
Summary: By modifying polyvinyl alcohol (PVA) through a multi-crosslinking structure and copper ions chelation, the problems of flammability, large smoke production, and bacterial breeding are solved. The modified PVA composites show improved flame retardancy, char-forming ability, smoke suppression, and antibacterial properties.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yuhui Zhang, Mengtong Shan, Han Lei, Pengzhen Zhao, Chen Yu, Yixing Huang
Summary: The development of electromagnetic wave absorbing materials and structures is of great importance in fields like aerospace and electronic communications. Traditional absorbing coatings have poor mechanical load-bearing capacity and struggle to meet lightweight requirements. In this study, a functional absorbing composite filament was developed using material extrusion technique, along with a magnetic lossy four-layer gradient honeycomb metastructure. The design enables effective absorption in the range of 6.09-37.18 GHz within a thickness of 16 mm, covering 81.82% of the frequency range of 2-40 GHz.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Mechanics
Shan Zeng, Zhiyong Yu, Fei Wang, Kaifa Wang, Baolin Wang
Summary: This paper investigates the nonlinear electromechanical bending of a bi-modular piezoelectric laminated beam using the principle of minimum potential energy and the Adomian decomposition method. The study considers the different tensile-compressive properties of the core and piezoelectric layers. The results show that the applied voltage and the bi-modular characteristics affect the position of the neutral layer and the interlaminar stresses, with the influence of the bi-modular properties of the piezoelectric layer on the neutral layer being relatively small.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Qisen Chen, Yaoyao Ye, Shimeng Qian, Qiang Xu, Weiwei Qu, Xiaowen Song, Yinglin Ke
Summary: This study proposes a geometric reconstruction approach and a mechanical model to study the effects of manufactured gaps on curved laminates. Experimental results confirmed the impact of gap defects on the bending strength and failure pattern of curved laminates.
COMPOSITE STRUCTURES
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Mechanics
Honglei Xie, Wanjin Li, Hai Fang, Shijiang Zhang, Zhixin Yang, Yuan Fang, Feng Yu
Summary: This study fabricated curved sandwich beams (CSBs) and conducted experiments to investigate their flexural behaviors. It was found that the usage of PET foam in CSBs can prevent core shearing failure and decrease load-displacement response. The results also showed that decreasing curvature led to a decrease in the ultimate load-bearing capacity and stiffness of the CSBs.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Long Chen, Junjun Che, Shuxun Liang, Yingjun Wang
Summary: This study proposes a volume parametric modeling method and an efficient multiscale topology optimization framework based on isogeometric analysis (IGA) to construct gradient lattice structures. A skeleton model is constructed to accurately describe the topology structure and improve data utilization and computational efficiency. By using the same data model for modeling, analysis, and optimization, the geometric shape can be accurately represented without discretization errors. The effectiveness and robustness of the algorithm are verified through experiments on mechanical parts and freeform models, showing that the gradient lattice structure has higher strength and better stress distribution than the uniform lattice structure under the same boundary conditions.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Lu Zhang, Weiping He, Shiyang Zhu, Changliang Lai, Yanming Tao, Hengyi Zhu, Ming Li, Hualin Fan
Summary: This article designs and manufactures a carbon fiber reinforced hierarchical lattice stiffened cylindrical shell (HLSCS). By introducing the effect of neutral plane offsetting, an improved smeared stiffener method is proposed to homogenize the HLSCS. The transverse shear stiffness is predicted using higher-order shear deformation theory, and a nondestructive composite parameter identification method is proposed based on experimental and theoretical results.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Huiying Zhang, Jie Xiao, Ye Chen, Huaping Wang
Summary: This paper proposes a methodology for predicting and analyzing the weld strength of FDM printed parts using PVDF as the raw material. The method shows good accuracy and can be extended to PVDF composites with different MWCNTs content.
COMPOSITE STRUCTURES
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
