Composite Structures最新文献_第8页

Hierarchically engineered Sandwich-Structured h-MXene/ANF hybrid films with tunable electromagnetic interference shielding and exceptional environmental resilience 分层设计的三明治结构h-MXene/ANF混合薄膜具有可调谐的电磁干扰屏蔽和卓越的环境弹性

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-04 DOI: 10.1016/j.compstruct.2025.119248

Fan Xie, Qiaoling Liu, Longhai Zhuo, Haitao Wei, Yuxuan Shang, Tao Liu, Zhaoqing Lu

{"title":"Hierarchically engineered Sandwich-Structured h-MXene/ANF hybrid films with tunable electromagnetic interference shielding and exceptional environmental resilience","authors":"Fan Xie, Qiaoling Liu, Longhai Zhuo, Haitao Wei, Yuxuan Shang, Tao Liu, Zhaoqing Lu","doi":"10.1016/j.compstruct.2025.119248","DOIUrl":"10.1016/j.compstruct.2025.119248","url":null,"abstract":"<div><div>High-performance electromagnetic interference (EMI) shielding materials with lightweight, multi-resistant properties and superior, tunable EMI shielding performance are urgently needed for next-generation integrated electronic and communication systems, particularly in portable smart devices and artificial intelligence applications. In this work, hollow h-MXene/ANF backbones with a continuous shielding network were fabricated using a facile vacuum-assisted filtration process combined with a sacrificial template method. The structurally engineered h-MXene/ANF hybrid films achieved outstanding EMI shielding effectiveness (EMI SE) of 78.9 dB and EMI specific shielding effectiveness per unit thickness (SSE/t) of 15703 dB·cm<sup>2</sup>·g<sup>–1</sup>. These exceptional properties are attributed to high ohmic losses, multiple internal reflections, polarization relaxation, and efficient losses in the hollow MXene conductive layer, facilitated by impedance mismatches within the sandwich structure. Notably, the EMI SE performance can be tuned by adjusting the content of hollow MXene microspheres. In addition, extensive hydrogen-bonding interactions between the high-performance ANF and MXene contribute to enhanced mechanical properties, including tensile strength of up to 37 MPa, as well as excellent thermal stability and self-cleaning capabilities. Overall, the sandwich-structured h-MXene/ANF hybrid films exhibit superior mechanical strength, multi-resistant properties, and ultra-high, tunable EMI shielding performance, making them promising candidates for advanced EMI shielding in next-generation portable smart electronic devices.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119248"},"PeriodicalIF":6.3,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible radar-infrared compatible stealth skin metastructure based on multi-scale optimization design 基于多尺度优化设计的柔性雷达红外兼容隐身蒙皮元结构

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-03 DOI: 10.1016/j.compstruct.2025.119249

Jian Ma , Xinxin Shen , Zhimin An , Jiayun Wang , Boyi Yao , Junping Duan , Binzhen Zhang

{"title":"Flexible radar-infrared compatible stealth skin metastructure based on multi-scale optimization design","authors":"Jian Ma , Xinxin Shen , Zhimin An , Jiayun Wang , Boyi Yao , Junping Duan , Binzhen Zhang","doi":"10.1016/j.compstruct.2025.119249","DOIUrl":"10.1016/j.compstruct.2025.119249","url":null,"abstract":"<div><div>In order to meet the requirements of efficient flight over wide airspace and at high speeds, morphing aircraft have been gradually emerging as a new avenue for innovative developments in aeronautical systems. With the steady progress in multi-target detection capabilities, the development of radar-infrared multi-spectral stealth-compatibility flexible skinning has become essential to ensure optimum flight performance for morphing aircraft. In this context, the study proposes a novel multi-layered design for optimization, integrating micro-structure and macro-structure. Several electromagnetic wave attenuation mechanisms have been developed by embedding nanoparticles in a PDMS matrix combined with frequency selective metasurfaces. This approach has resulted in a flexible sandwich matrix with extraordinary mechanical properties (1.66 MPa tensile strength) and an ultra-wide absorption bandwidth (25.28 GHz, Reflection loss (RL) < −10 dB). In addition, by integrating the infrared shield layer (IRSL), radar-infrared compatible stealth was achieved with an emissivity as low as 0.26. The developed multi-layer composite structure not only solves the incompatibility of radar and infrared stealth, but also demonstrates excellent flexibility in the conformations. This research provides both the theoretical basis and the technical support for the innovative development of high-speed morphing aircraft.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119249"},"PeriodicalIF":6.3,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear vibration suppression of complex boundary multimodal rigid-flexible coupled irregular-shaped composite thin-walled panel 复杂边界多模态刚柔耦合异形复合薄壁板的非线性振动抑制

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-03 DOI: 10.1016/j.compstruct.2025.119233

Zhi-Jian Wang , Jian Zang , Yang Li , Zhen Zhang , Xu-Yuan Song , Ye-Wei Zhang , Li-Qun Chen

{"title":"Nonlinear vibration suppression of complex boundary multimodal rigid-flexible coupled irregular-shaped composite thin-walled panel","authors":"Zhi-Jian Wang , Jian Zang , Yang Li , Zhen Zhang , Xu-Yuan Song , Ye-Wei Zhang , Li-Qun Chen","doi":"10.1016/j.compstruct.2025.119233","DOIUrl":"10.1016/j.compstruct.2025.119233","url":null,"abstract":"<div><div>This paper presents a passive nonlinear control scheme for instrument-equipped aerospace composite laminated thin-walled panels using nickel-titanium shape memory alloy wires. Higher-order dynamic analysis is performed on rigid-flexible coupled structures, examining vibration modes under irregular boundary conditions. The equations are decoupled to derive analytical solutions for multimodal nonlinear vibration suppression. An experimental platform is developed for specimen fabrication, modal testing, and vibration suppression. Results confirm broadband nonlinear damping under variable temperatures and multidirectional excitations. A novel method utilizing fast-slow and dwell sweeps is introduced to characterize the structure’s nonlinear dynamic behavior. Findings indicate that increased external excitation leads to more evident nonlinear hardening effects in the panel, while the passive control strategy effectively mitigates nonlinear resonance amplitude. This study confirms Nitinol-SMA’s capability to suppress complex nonlinear vibrations and highlights its potential for future aerospace applications.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119233"},"PeriodicalIF":6.3,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel mesoscopic modeling method of triaxial woven fabric composites considering yarn-yarn contact geometry 一种考虑纱线-纱线接触几何的三轴机织物复合材料细观建模方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-03 DOI: 10.1016/j.compstruct.2025.119247

Honghua Zhang , Renbo Su , Xinyang He , Chengzu Li , Yifan Zhi , Wei Li

{"title":"A novel mesoscopic modeling method of triaxial woven fabric composites considering yarn-yarn contact geometry","authors":"Honghua Zhang , Renbo Su , Xinyang He , Chengzu Li , Yifan Zhi , Wei Li","doi":"10.1016/j.compstruct.2025.119247","DOIUrl":"10.1016/j.compstruct.2025.119247","url":null,"abstract":"<div><div>This paper presents a high-fidelity mesoscopic triaxial woven fabric composites model with realistic contact surface morphology is designed parametrically from the contact region at the yarn interweaving position for avoiding volumetric interpenetration of the yarns. Additionally, the geometry of yarn-yarn contact is parametrically characterized. The geometrical features of the model are validated by the results extracted from micro-CT reconstruction. The introduction of experimental methodology for the direct observation of the actual contact surface morphology has validated the parametric characterization of the contact geometry. A Python script is developed to automate the addition of periodic boundary conditions and the accuracy of the elastic property prediction is evaluated experimentally. The results demonstrate that triaxial woven fabric composites modeling approach achieves fine mesoscale characterization and high elastic property prediction accuracy. The comparison results of two different contact surface morphology models highlight the significance of yarn-yarn contact morphology features in textile structure modeling.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119247"},"PeriodicalIF":6.3,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel explicit porous structure design method 一种新的显式多孔结构设计方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-03 DOI: 10.1016/j.compstruct.2025.119232

Lixue Fang , Mingxiao Shi , Kang An , Huichao Jiao , Yongtai Han , Xuan Wang , Chunxiu Wang

引用次数: 0

Braiding-process-induced damage and deformation of three-dimensional braided preform: A numerical investigation 三维编织预制体编织过程损伤与变形的数值研究

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-02 DOI: 10.1016/j.compstruct.2025.119223

Mengyuan Zhang , Xingzhong Gao , Shixuan Gao , Hong Chen , Jindan Wu , Liwei Wu

{"title":"Braiding-process-induced damage and deformation of three-dimensional braided preform: A numerical investigation","authors":"Mengyuan Zhang , Xingzhong Gao , Shixuan Gao , Hong Chen , Jindan Wu , Liwei Wu","doi":"10.1016/j.compstruct.2025.119223","DOIUrl":"10.1016/j.compstruct.2025.119223","url":null,"abstract":"<div><div>Three-dimensional braided composites (3DBC) are widely used in aerospace due to their excellent impact resistance and structural integrity. The excellent mechanical performance of 3DBC can be achieved by ensuring precise dimensions, stable structure and low-damage fabrication technology for the 3D braided preform. In this research work, we developed <em>meso</em>-scale and micro-scale finite element models to numerically analyze the damage and deformation behavior of braided structures during the fabrication process of 3D braided preform. The deformation and damage mechanism of fibers at different scales during 3D braiding process are first analyzed. The results show that stress always concentrates at the interlaced regions and is affected by the beating-up process. The outer yarns are more easily damaged during the braiding process. In the beating-up process, when the beater reaches the highest point, the first broken fiber is generated, and the broken fiber is located in the interlaced area. The damage caused by the beating-up motion is greater than that caused by fiber movement. The damage to the elements is mainly caused by shear stress. The greater the friction coefficient between fibers and the higher of the beating-up height, the more severe fiber deformation in the interlaced area. These results can provide valuable guidance for the fabrication of high-quality 3D braided preforms.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119223"},"PeriodicalIF":6.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical investigation on mechanical properties and failure modes of SiC/SiC tapered laminates: Effects of ply drop location SiC/SiC锥形层合板力学性能及破坏模式的实验与数值研究：铺层位置的影响

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-01 DOI: 10.1016/j.compstruct.2025.119241

Chenyang Liu , Sheng Zhang , Xu Zhang , Chengqian Dong , Fang Wang , Xiguang Gao , Yingdong Song

{"title":"Experimental and numerical investigation on mechanical properties and failure modes of SiC/SiC tapered laminates: Effects of ply drop location","authors":"Chenyang Liu , Sheng Zhang , Xu Zhang , Chengqian Dong , Fang Wang , Xiguang Gao , Yingdong Song","doi":"10.1016/j.compstruct.2025.119241","DOIUrl":"10.1016/j.compstruct.2025.119241","url":null,"abstract":"<div><div>Aerospace laminated composite structures often require thickness variations along one or more directions in order to satisfy weight and aerodynamic efficiency requirements. Thickness variation is achieved by introducing dropped plies at appropriate locations. However, the influence mechanism of the ply drop location has not been adequately elucidated. In this work, the effect of ply drop location on the mechanical properties of tapered laminates has been investigated by experiment and simulation. Three different ply-drop configurations of tapered laminates were subjected to quasi-static tensile tests. The main failure modes are delamination and ply damage. Delamination can significantly reduce the load-bearing capacity of the structure. The simulation results are in good agreement with the test results in terms of failure load, load–displacement response, and delamination regions. The results demonstrate that the ply drop location affects the order of occurrence of the main failure modes of tapered laminates and the propagation path of ply damage cracks, thereby influencing their mechanical properties.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119241"},"PeriodicalIF":6.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing compressive mechanical properties of anisotropic shell-based architected materials 增强各向异性壳基建筑材料的压缩力学性能

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-01 DOI: 10.1016/j.compstruct.2025.119240

Xinghao Wang , Ziming Yan , Shu Guo , Yizhi Zhang , Chenxu Liu , Zhanli Liu

{"title":"Enhancing compressive mechanical properties of anisotropic shell-based architected materials","authors":"Xinghao Wang , Ziming Yan , Shu Guo , Yizhi Zhang , Chenxu Liu , Zhanli Liu","doi":"10.1016/j.compstruct.2025.119240","DOIUrl":"10.1016/j.compstruct.2025.119240","url":null,"abstract":"<div><div>Anisotropic architected materials offer significant advantages in expanding the design space of mechanical properties. However, anisotropic design for tailored compressive mechanical properties has remained limited due to the lack of comprehensive studies on large compressive deformation of anisotropic architected materials. In this paper, we designed and fabricated shell-based spinodoid architectures with highly tunable anisotropic mechanical properties and explored the mechanisms by which anisotropy affects the scaling laws for compressive mechanical properties. The results show that anisotropy can regulate the material arrangement within the architectures respect to load direction, enabling a wide range of scaling law exponents from 1.03 to 1.77. Further deformation analysis reveals that architectures with high anisotropy undergo global buckling, while direction-independent architectures exhibit localized deformation during compression. Architectures with specific anisotropic properties exhibit a broad design space at a fixed relative density and demonstrate superior effective modulus across a wide range of relative densities compared to traditional direction-independent lattice and shell-based architectures. Finally, by quantifying the geometrical anisotropy using the Mean Intercept Length (MIL) method, a generalized scaling law is derived to predict the compressive mechanical properties of anisotropic architected materials. This work offers innovative solutions for expanding the design space and enabling direction-dependent applications.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119240"},"PeriodicalIF":6.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creep behaviour and lifespan of flax fibre composites with different polymer matrices 不同聚合物基质亚麻纤维复合材料的蠕变性能和寿命

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-01 DOI: 10.1016/j.compstruct.2025.119246

Jianqun Hao , Stepan V. Lomov , Carlos A. Fuentes , Aart Willem Van Vuure

{"title":"Creep behaviour and lifespan of flax fibre composites with different polymer matrices","authors":"Jianqun Hao , Stepan V. Lomov , Carlos A. Fuentes , Aart Willem Van Vuure","doi":"10.1016/j.compstruct.2025.119246","DOIUrl":"10.1016/j.compstruct.2025.119246","url":null,"abstract":"<div><div>Despite the promising structural applications of thermoplastic polymer composites (TPCs) reinforced with natural fibres, their long-term performance remains insufficiently understood, which often results in the overdesign of composite structures. This work aims to gain a deeper understanding of the long-term creep behaviour of flax fibre-reinforced TPCs for load-bearing applications, focusing on selecting an optimal thermoplastic polymer among four different thermoplastic polymers − polypropylene, polyoxymethylene, polyamide 11, and polylactic acid, using epoxy as a benchmark. Short-term creep tests on the neat polymers and the composites reveal that the fibre/matrix interface plays a more important role in the creep response of the composites than the matrix itself, despite the polymer’s viscoelastic nature being the primary source of creep. “Run to failure” tests were performed using a custom-designed flexural creep set-up. The creep lifespan was analysed using an energy-based creep rupture model. Acoustic emission and scanning electron microscope were used to analyse creep damage evolution and rupture mechanisms, respectively. The longest lifespan among the four TPCs was observed in flax/polylactic acid composite, attributed to its superior interface properties, enhanced creep resistance, higher stored energy limit, and slower damage development. When compared with flax/epoxy composite under a same stress of 150 MPa, the four TPCs demonstrated a significantly shorter lifespan (one to three orders of magnitude shorter). Under a same stress ratio of 80 %, however, the four TPCs exhibited less disparate creep lifespan compared to flax/epoxy composite, suggesting their potential applications for low to medium load-bearing structural components.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119246"},"PeriodicalIF":6.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of void and fractured fiber defects on the ultrafine Z-pin and Mode I fracture toughness of CFRP laminates 空隙和断裂纤维缺陷对CFRP复合材料超细z销和I型断裂韧性的影响

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-01 DOI: 10.1016/j.compstruct.2025.119243

Yihan Fu , Weidong Zhu , Shuran Li , Mengze Li , Jing Xiao , Ling Yan , Liang Cheng , Yinglin Ke

{"title":"The influence of void and fractured fiber defects on the ultrafine Z-pin and Mode I fracture toughness of CFRP laminates","authors":"Yihan Fu , Weidong Zhu , Shuran Li , Mengze Li , Jing Xiao , Ling Yan , Liang Cheng , Yinglin Ke","doi":"10.1016/j.compstruct.2025.119243","DOIUrl":"10.1016/j.compstruct.2025.119243","url":null,"abstract":"<div><div>To minimize the damage caused by Z-pin insertion to the in-plane properties of the laminate, researchers have initiated investigations into the utilization of fine Z-pins and reduced insertion densities. However, the manufacturing process of fine Z-pins introduces voids and fiber fracture defects, leading to a decline in Z-pin quality and consequently affecting the efficacy of interlaminar toughening. In this research, defects in the Z-pin preparation process were identified through extensive experiments, and pre-stressing is applied during the curing of the Z-pin, leading to the successful development of the high-quality 80 μm and 90 μm diameter Z-pins. Furthermore, this research extensively examines the impact of these two defects on the quality of Z-pins and provides a model to determine the optimal Z-pin size corresponding to various insertion depths under the existing processing conditions. For example, according to the model, the optimal Z-pin size for laminates with a thickness of 4 mm is 90 μm. This ensures that the Z-pin’s failure mode remains at the critical transition between pull-out and fracture, thereby maximizing its tensile strength utilization. The research findings are validated through experimental verification, thus providing insights for the application of ultrafine Z-pins.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119243"},"PeriodicalIF":6.3,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0