Composites Communications最新文献

{"title":"Quaternion-based dynamic algorithm for random generation of solid 4D cylindrical curves in RVE modeling","authors":"Sanusi Hamat ,&nbsp;Mohamad Ridzwan Ishak ,&nbsp;Piaras Kelly ,&nbsp;Mohd Sapuan Salit ,&nbsp;Noorfaizal Yidris ,&nbsp;Syamir Alihan Showkat Ali ,&nbsp;Mohd Sabri Hussin ,&nbsp;Mohd Syedi Imran Mohd Dawi","doi":"10.1016/j.coco.2025.102514","DOIUrl":"10.1016/j.coco.2025.102514","url":null,"abstract":"<div><div>A quaternion‐based dynamic algorithm is developed to populate Representative Volume Elements (RVEs) with solid 4D cylindrical fibers, combining spatial centerline coordinates (<span><math><mrow><mi>x</mi><mo>,</mo><mi>y</mi><mo>,</mo><mi>z</mi></mrow></math></span>) and quaternion‐encoded orientation. Fiber geometries are generated via parametric equations incorporating variable wavenumbers, phase angles, and amplitude functions, then discretized into equal‐arc segments to compute true curved lengths and volumes. Collision detection employs a closed‐form root‐finding solution for the overlap potential and Bézier‐clipping to guarantee <span><math><mrow><msub><mi>d</mi><mi>min</mi></msub><mo>≥</mo><mn>2</mn><mi>r</mi></mrow></math></span>, enabling non-overlapping placement at volume fractions up to 50 %. Random Sequential Adsorption (RSA) is integrated with quaternion mathematics to achieve dense, yet random, fiber packing. Scalability follows an empirical complexity of <span><math><mrow><mi>O</mi><mrow><mo>(</mo><msup><mi>N</mi><mn>1.5</mn></msup><mo>)</mo></mrow></mrow></math></span> for <span><math><mrow><mi>N</mi></mrow></math></span> fibers. Micro-scale RVEs were successfully generated across fiber volume fractions up to 50 %, validated through second‐order orientation tensor analysis and statistical evaluations using Probability Density Functions (PDFs) and Cumulative Distribution Functions (CDFs). High-aspect-ratio tests (L/D = 10, 50, 100) confirm collision-free packings with normalized nearest-neighbor spacings <span><math><mrow><msub><mi>min</mi><mtext>NN</mtext></msub><mo>/</mo><mi>D</mi><mo>&gt;</mo><mn>1</mn></mrow></math></span>, mean spacing decreasing from 252 to 82.8 diameters, and relative dispersion <span><math><mrow><msub><mi>σ</mi><mtext>NN</mtext></msub><mo>/</mo><msub><mi>μ</mi><mtext>NN</mtext></msub><mo>&lt;</mo><mn>0.5</mn></mrow></math></span>. This singularity-free, computationally efficient method advances realistic composite microstructure modeling under extreme curvature and slenderness.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102514"},"PeriodicalIF":6.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366294","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}

{"title":"Enhancing the interfacial interactions in PVDF/COF composite nanofiltration membranes for efficient antibiotic separation","authors":"Qianpan Guo ,&nbsp;Zhiwen Fan ,&nbsp;Zihao Wang ,&nbsp;Yufei Liu ,&nbsp;Qingyang Zou ,&nbsp;Handan Cui ,&nbsp;Chenxiang Ai ,&nbsp;Chunyue Pan ,&nbsp;Shuai Gu ,&nbsp;Juntao Tang ,&nbsp;Guipeng Yu","doi":"10.1016/j.coco.2025.102507","DOIUrl":"10.1016/j.coco.2025.102507","url":null,"abstract":"<div><div>As the demand for efficient water purification technologies grows, developing high-performance and precise separation membranes has emerged as a critical solution. Herein, we present an innovative approach to enhance the interfacial interactions between a polyvinylidene fluoride (PVDF) substrate and a covalent organic framework (COF) separation layer through carbonyl-functionalization of the PVDF surface. This functionalization strategy not only significantly improves interfacial adhesion but also introduces modifications that collectively elevate the overall performance of the composite membrane. The PVDF/COF composite membranes exhibited high water flux (90.8 L m⁻² h⁻¹ bar⁻¹) with a molecular weight cut-off (MWCO) of about 700 Da, surpassing the performance of state-of-the-art membranes. This study provides new insights into the fabrication of efficient PVDF nanofiltration membranes for advanced water treatment applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102507"},"PeriodicalIF":6.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471165","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}

{"title":"Aramid honeycomb composites filled with rGO/BC aerogel for broadband microwave absorption and multifunctional applications","authors":"Bai Jiang ,&nbsp;Jianxun Shang ,&nbsp;Na Li ,&nbsp;Yan Wang ,&nbsp;Zuming Hu ,&nbsp;Junrong Yu","doi":"10.1016/j.coco.2025.102512","DOIUrl":"10.1016/j.coco.2025.102512","url":null,"abstract":"<div><div>To overcome the limitations of carbon-based microwave-absorbing aerogels in mechanical properties and application versatility, this work integrated reduced graphene oxide/bacterial cellulose (rGO/BC) aerogels into the hexagonal cavities of aramid honeycomb substrates (GCH) through a directional freeze-drying strategy. This architecture leverages the exceptional compressive strength of an aramid framework to prevent the structural collapse of aerogel, while the ultralight rGO/BC aerogel with different graphene oxide (GO) concentrations (bulk density &lt;3 kg/m³) imparts multifunctional without mass increase obviously. BC induces oriented pore alignment in the rGO aerogel matrix, enhancing elastic recovery, mitigating structure failure and cyclic fatigue loss of compression stress during service. Electromagnetic characterization revealed broadband X-band absorption universality across GCH composites, with minimum reflection loss (RL_min) exceeding −70 dB for GCH-3/10/12. Especially, the GCH-7 tested by arch method achieved RL_min of −19 dB over 1–18 GHz and effective absorption bandwidth (EAB) of 12.1 GHz (fully covered Ku-band) with 10 mm thickness, and the actual RL curve obtained through the arch method is in high agreement with the fitting results of electromagnetic parameters. Simultaneously, the composite exhibited integrated functionalities including fatigue durability, thermal insulation, self-extinguishing behavior, and high-frequency sound absorption. This work provides a new paradigm for the design of aerogel-honeycomb composites with both load-bearing capacity and multi-scenario applications, and with potential for promote the large-scale application of wave-absorbing materials in the fields of aerospace and electromagnetic protection.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102512"},"PeriodicalIF":6.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330964","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}

{"title":"Significantly improve the mode Ⅰ interlaminar and three-point-bending properties of needled composite by novel short fiber felt peeling method","authors":"Xiaoming Chen ,&nbsp;Wenguang Liu ,&nbsp;Zexiong Wang ,&nbsp;Qi Zheng ,&nbsp;Junling Liu","doi":"10.1016/j.coco.2025.102509","DOIUrl":"10.1016/j.coco.2025.102509","url":null,"abstract":"<div><div>Traditional laminated needled preforms contain low-density short fiber felt, limiting the mechanical performance of the needled composites, which is hard to fulfill the service demands of high-speed aircraft structural functional integration components. This study proposes a novel 3D needled preform fabrication method based on short fiber felt peeling technique, significantly improving the mechanical properties of both preforms and composites. High load-bearing needled preforms and composites were designed and fabricated by this new method. Through micro-CT structural characterization, DCB tests, three-point bending experiments, and SEM fracture morphology analysis, the effects of different needling parameters on fabric structures and composite's Mode I interlaminar fracture toughness and flexural property were investigated. Results showed that compared with traditional needled preforms and composites, the fiber volume fraction of short fiber felt peeled needled preforms increased by 53.80 %–60.60 %, with needled fiber bundles' volume content enhanced by 62.08 % and bundle length extended by 110.61 %. DCB tests demonstrated 21.89 %–63.32 % improvement in maximum failure load and up to 157.41 % increase in critical energy release rate (G_ⅠC). Three-point bending strength and modulus rose by 33.27 %–83.89 % and 52.27 %–65.91 % respectively. SEM analysis revealed failure modes dominated by matrix cracking, fiber pull-out, and fiber fracture during Mode I delamination and bending failures. This method shows promise for manufacturing high load-bearing structural/functional integrated composite preforms and composites for aerospace vehicles.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102509"},"PeriodicalIF":6.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365086","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}

{"title":"Low terahertz transmission loss of polyphenylene sulfide/polyhedral oligomeric silsesquioxane nanocomposite foam for high-performance terahertz antenna","authors":"Dengyang Chen ,&nbsp;Lisha Zhang ,&nbsp;Chengzhe Gao ,&nbsp;Qiwu Shi ,&nbsp;Silin He ,&nbsp;Zhao Wang ,&nbsp;Guangxian Li ,&nbsp;Pengjian Gong","doi":"10.1016/j.coco.2025.102513","DOIUrl":"10.1016/j.coco.2025.102513","url":null,"abstract":"<div><div>The wireless communication industry is advancing toward higher-frequency electromagnetic bands, with the terahertz (THz) band emerging as the target for the next generation of wireless communication. However, the extremely high frequency within the THz band leads to significant signal loss in wireless communication devices (e.g., antennas), necessitating materials with ultralow dielectric properties. To address this challenge, this study developed a novel porous nanocomposite with ultralow dielectric properties by leveraging polyphenylene sulfide (PPS) as the matrix, integrating supercritical CO₂ (scCO₂) foaming and polyhedral oligomeric silsesquioxane (POSS) for low-dielectric modification, and optimizing PPS's foaming behavior through thermal oxidation treatment. Notably, POSS, as a unique component, introduces a complex coupling effect on the thermal oxidation process of PPS, significantly influencing its foaming behavior. By optimizing this coupling interaction, the obtained porous nanocomposite not only achieves a remarkable reduction in dielectric properties (dielectric constant of 1.2 and dielectric loss of 0.0016 @0.33 THz), but also demonstrates a substantial increase in THz transmittance from 65.9 % to 99.2 % (@0.33 THz). When applied to THz antenna, this porous nanocomposite elevates the THz signal transmission distance from 6.98 m (using pristine PPS substrate) to an unprecedented 387.4 m, showcasing a revolutionary performance breakthrough.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102513"},"PeriodicalIF":6.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366293","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}

{"title":"Inverse design of composite pipe fittings using deep learning for lightweight structural optimization","authors":"Qichao Gui ,&nbsp;Anchalee Duongthipthewa ,&nbsp;Limin Zhou","doi":"10.1016/j.coco.2025.102494","DOIUrl":"10.1016/j.coco.2025.102494","url":null,"abstract":"<div><div>The conventional design of composite pipe fittings is highly dependent on experimental testing and finite element simulations, which are both costly and time-intensive. To address these challenges, this study introduces a deep learning-based inverse design approach to optimize the stiffness characteristics of carbon fiber reinforced polymer (CFRP) composite pipe fittings. Two predictive models were developed: a Long-Short-Term Memory-Based (LSTMB) Model and a Multi-Head Attention-Based (MHAB) Model. Comparative evaluations revealed that the MHAB model outperformed the LSTMB model in terms of predictive accuracy and generalization capability. Based on this, a population-based optimization algorithm was integrated to achieve the inverse design of the composite pipe fittings, ensuring efficient structural optimization while satisfying design constraints. The proposed method was validated through two optimization case studies, demonstrating its effectiveness in improving the efficiency and precision of composite pipe fitting design. This study highlights the potential of deep learning, particularly the Transformer framework, to accelerate the design and optimization of composite materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102494"},"PeriodicalIF":6.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471078","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}

{"title":"Grinding analysis of composite structure repair","authors":"Laibin Zhang ,&nbsp;Yubo Zhao ,&nbsp;Guowen Wang ,&nbsp;Hailong Yang ,&nbsp;Jian Zhou ,&nbsp;Shanyong Xuan ,&nbsp;Xuefeng Yao","doi":"10.1016/j.coco.2025.102506","DOIUrl":"10.1016/j.coco.2025.102506","url":null,"abstract":"<div><div>Grinding is a critical process in the composite repair, and its grinding parameters significantly influence the repaired structure's integrity. This study investigates the effect of grinding path and key process parameters (rotation speed, feed depth, and in-plane rotation cycle) on damage in composite scarf repairs using finite element analysis. The 3D finite element model simulating ladder grinding was established, incorporating Hashin's failure criteria and a progressive damage model. The external-to-internal grinding path was found to induce less structural damage and delamination. Furthermore, response surface methodology (RSM) was employed to develop a predictive model for grinding-induced damage (equivalent damage area) and to optimize process parameters. The optimal conditions identified were a rotation speed of 3439.82 r/min, a feed depth of 0.1065 mm, and an in-plane rotation cycle of 4.03 s, which predictively minimized the damage area to 745.36 mm². These findings offer valuable guidance for optimizing grinding processes in composite structural repair to enhance post-repair performance.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102506"},"PeriodicalIF":6.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366366","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}

{"title":"Research on microstructure and mechanical properties of multi-particles synergistically reinforced aluminum matrix composites by laser additive manufacturing","authors":"Yu Li ,&nbsp;Chenghang Zhang ,&nbsp;Xu Cheng ,&nbsp;Yiliu Sun ,&nbsp;Chunjie Shen","doi":"10.1016/j.coco.2025.102508","DOIUrl":"10.1016/j.coco.2025.102508","url":null,"abstract":"<div><div>With the increasing demand for lightweight, high-strength, and durable structural components in aerospace and automotive industries, particle-reinforced aluminum matrix composites (AMMCs) have attracted extensive attention due to their low density, high specific strength, and excellent wear resistance. In this study, aluminum composites with 0.5 wt% TiN +0.5 wt% Si₃N₄ and 1 wt% TiN +1 wt% Si₃N₄ reinforcements were fabricated using selective laser melting (SLM) to achieve improved performance, leveraging the strengthening effects of different reinforced particles. During the high-temperature SLM process, TiN particles melted and released Ti atoms, which facilitated the formation of Al₃(Ti, Sc, Zr) phase. Compared to the as-deposited aluminum alloy, the composites exhibited enhanced tensile strength of 415.42 MPa (0.5 wt% TiN + 0.5 wt% Si₃N₄) and 446.63 MPa (1 wt% TiN + 1 wt% Si₃N₄). The enhanced strength is primarily attributed to grain refinement and precipitation hardening induced by the reinforced particles.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102508"},"PeriodicalIF":6.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330953","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}

{"title":"Bioinspired micro-nano laminated Nb/Nb5Si3 composites fabricated by high-energy ball milling and spark plasma sintering","authors":"Bowen Xiong ,&nbsp;Yangzhi Chen ,&nbsp;Yangzhoutian Li ,&nbsp;Siyuan Wang ,&nbsp;Zhixin Tu ,&nbsp;Zhenjun Wang","doi":"10.1016/j.coco.2025.102511","DOIUrl":"10.1016/j.coco.2025.102511","url":null,"abstract":"<div><div>This study proposes a novel strategy to overcome the strength-toughness trade-off in Nb/Nb₅Si₃ composites by designing bioinspired micro-nano laminated architectures similar to a “brick-and-mortar” structure. Utilizing the novel approach developed in this study, the bioinspired micro-nano laminated Nb/Nb₅Si₃ composites were successfully fabricated. This architecture enables Nb/Nb₅Si₃ composites to possess an excellent combination of toughness and strength to exceed the mechanical properties of previously reported Nb-Si composites and overcome the conventional strength-toughness trade-off. The excellent mechanical properties may be attributed to dislocation bowing movement and deformation twinning. Dislocation bowing facilitates long-range stress dissipation and reduces local stress concentration to enhance strength and toughness. The deformation twinning can consume stress to improve strength and toughness. The micro-nano laminated architecture promotes the formation of tearing ridges that exhibit the same alignment as the laminated structure. The formation of tearing ridges increases energy dissipation during crack propagation and deflects the crack path to extend the propagation distance, ultimately improving fracture toughness.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102511"},"PeriodicalIF":6.5,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331101","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}

{"title":"Distribution optimization strategy inspired by natural structure considering the ignition modes of plant fiber reinforced composites in real fire scenarios","authors":"Zhibiao Wei ,&nbsp;Tao Yu ,&nbsp;Jiang Du ,&nbsp;Yan Li","doi":"10.1016/j.coco.2025.102510","DOIUrl":"10.1016/j.coco.2025.102510","url":null,"abstract":"<div><div>Considering the ignition modes of interior structural components made from plant fiber reinforced composites (PFRP) in real fire scenarios, flame-retardant composites with corresponding structure were developed, inspired by the sandwich structure of cell membranes and the gradient structure of spruce found in nature the structure of spruce and cell membranes in nature. This work successfully prepared composites with sandwich structure (S-PFRP) and gradient structure (G-PFRP), which reduced the amount of added flame retardant by 33.3 % and 50 %, respectively, compared to traditional methods of random distribution. The thermal stability of S-PFRP and G-PFRP was significantly enhanced, with residues increasing by 131 % and 90 % at 800 °C compared to pristine PFRP, indicating excellent high-temperature stability. Adding only 5.1 % (S-PFRP) and 3.8 % (G-PFRP) of flame retardant was sufficient to achieve self-extinguishing properties, with LOI increasing by 72.2 % and 34.6 % compared to PFRP, and peak heat release rate decreasing by 47.1 % and 60.8 %. Furthermore, thanks to the excellent adhesion properties and good interfacial interaction with the resin of the designed flame-retardant system, the flexural strength of S-PFRP and G-PFRP were increased by 10.3 % and 7.1 % compared to pristine PFRP. The storage modulus at 50 °C of S-PFRP and G-PFRP was enhanced by 40 % and 28 %, respectively. Additionally, the incorporation of conductive graphene nanosheets (GNS) provided the composites with electromagnetic shielding properties, with total shielding values (SE_T) increasing by 26.1 dB and 21.7 dB at 8.2 GHz, representing a 20-fold improvement over pristine PFRP (1.8 dB).</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"58 ","pages":"Article 102510"},"PeriodicalIF":6.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306461","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}