Composites Communications最新文献

{"title":"Synergistic alumina particles and low-magnetic-field-induced vertical carbon fiber arrays for enhanced thermal conductivity and resilience of thermal interface materials","authors":"Zongyun Shao ,&nbsp;Xuejiao Xia ,&nbsp;Min Huang ,&nbsp;Yaoyan Zhuang ,&nbsp;Ruibang Xie ,&nbsp;Fei Han ,&nbsp;Yuanwei Yan","doi":"10.1016/j.coco.2026.102731","DOIUrl":"10.1016/j.coco.2026.102731","url":null,"abstract":"<div><div>Currently, advanced thermal interface materials (TIMs) with both high thermal conductivity and elasticity are required to meet the heat dissipation needs of cutting-edge electronic devices. Therefore, constructing an ordered thermal conductive structure without compromising mechanical resilience is an attractive strategy for developing advanced TIMs. Herein, we propose a promising orientation strategy based on the synergistic interaction of magnetic fields and gravity to construct a tightly packed vertical CFs arrays within the silicone rubber (SR) matrix, where the alignment of CFs along the magnetic field is assisted by gravity. Furthermore, by incorporating spherical alumina particles to bridge the inter-fiber gaps while maintaining the integrity of CFs arrays, a defect-minimized thermal network has been created to significantly enhance both the thermal conductivity and mechanical properties of the composites. The prepared composite possesses a superior thermal conductivity of 30.8 W m⁻¹ K⁻¹, a low hardness of Shore 00 53, and an outstanding compressibility of 42.3 % under 40 psi. This work establishes a paradigm-shifting strategy for scalable production of next-generation TIMs, offering a robust solution to solve thermal management challenges in high-power electronics, optoelectronics, and energy storage systems.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102731"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169980","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":"In-situ MoS2-reinforced aramid nanofiber aerogels with integrated photothermal–phase-change coupling for adaptive thermal management","authors":"Zhuguang Nie,&nbsp;Xiaoli Guo,&nbsp;Jinqiu Chen,&nbsp;Xiaonan Yang,&nbsp;Jiahui Chen,&nbsp;Rumin Wang,&nbsp;Shuhua Qi","doi":"10.1016/j.coco.2026.102745","DOIUrl":"10.1016/j.coco.2026.102745","url":null,"abstract":"<div><div>Multifunctional aerogels, as ultralight, high-porosity three-dimensional network materials, achieve multiple functions such as mechanical enhancement, thermal management, photothermal conversion, and energy storage through molecular-level regulation, interface engineering, and multi-component composite design, for overcoming the brittleness and single-function limitations of traditional aerogels. This study introduces a novel fabrication of MoS₂/aramid nanofiber (ANF) composite aerogels (ANFM) through in-situ hydrothermal growth of MoS₂ nanosheets on ANF skeleton, integrated with polyethylene glycol (PEG) as phase-change material (PCM) to yield ANFM-PCM composites for adaptive thermal management. MoS₂ nanosheets by reinforcing the pore network delay buckling instability, forming and leveraging C-Mo/N-Mo interfacial bonds to achieve efficient load transfer, enhances mechanical properties of ANFM composite aerogels from 228.25 to 501.1 kPa. ANFM-PCM composites preserve the intrinsic phase-transition behavior of PEG with maximum latent heat of 177.14 J/g, offering tunable latent heat and strong cycling durability, 92.4% enthalpy retention after 100 cycles. Moreover, their thermal decomposition temperatures all exceed 350 °C. Benefiting from high light absorption and broadband response of MoS₂, the composites achieve efficient light-to-heat conversion synergized with phase-change storage for adaptive thermal regulation. Even if under a light intensity of 0.1 W/cm², the absolute temperature difference between ANFM-PCM and the cold environment exceeds 90 °C. These lightweight, mechanically robust aerogels hold strong potential for intelligent thermal management, infrared stealth, and solar-energy storage applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102745"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170044","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":"Stimulating strain hardening ability to achieve excellent ductility for aluminum matrix composites by activating hetero-deformation induced hardening through designing grain partition","authors":"Yulei Li ,&nbsp;Xin Zhang ,&nbsp;Jun Wang ,&nbsp;Xin Li ,&nbsp;Dongxu Hui ,&nbsp;Shaodi Wang ,&nbsp;Yifan Liang ,&nbsp;Bo Li ,&nbsp;Shengyin Zhou ,&nbsp;Shufeng Li","doi":"10.1016/j.coco.2026.102739","DOIUrl":"10.1016/j.coco.2026.102739","url":null,"abstract":"<div><div>In this study, a bimodal heterostructure TiB₂/Al composites with designable coarse/fine grain partition were fabricated by combining multi-stage ball milling with a powder assembly process during powder metallurgy. The effects of different coarse/fine-grained fractions on the microstructure and mechanical properties of heterostructure composites were systematically investigated. The results demonstrate that the bimodal heterostructure can induce additional hetero-deformation induced (HDI) hardening compared to the fine-grained homogenous structure composites, effectively enhancing dislocation storage of coarse-grained zones and plastic deformation capability of fine-grained zones. Thereby promoting the strength-ductility synergy of the composites. When the coarse-grained mass fraction reaches 25 wt% (HS25), the elongation to failure of the bimodal heterostructure TiB₂/Al composites increases from 8.1% for homogenous structure composites to 13%. Moreover, its strength rises by 11% compare to the heterostructure composites with 50 wt% coarse grain (HS50) without compromising the ductility. It provides an inspired strategy for developing Al matrix composites with coordinated matching of strength and ductility.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102739"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169981","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":"Synergistic photocatalytic and antibacterial properties of Nd2O3/Sm2O3 nanocomposites for wastewater treatment and biomedical applications","authors":"Divya Selvakumar ,&nbsp;Wenbin Zhou","doi":"10.1016/j.coco.2026.102734","DOIUrl":"10.1016/j.coco.2026.102734","url":null,"abstract":"<div><div>Widely used synthetic organic dyes pose severe environmental and health risks due to their stability and resistance to degradation, while conventional metal oxide photocatalysts often exhibit limited efficiency in water remediation. Motivated by this challenge and the need for alternative photocatalytic materials, Sm₂O₃ nanoparticles (NPs), Nd₂O₃ NPs, and Nd₂O₃/Sm₂O₃ nanocomposites (NCs) were synthesized and evaluated for their photocatalytic degradation of commercially obtained dyes—Methylene Blue (MB), Rhodamine B (RhB), Methyl Orange (MO), Methyl Red (MR), and Congo Red (CR)—under UV irradiation. The Nd₂O₃/Sm₂O₃ NCs possess a larger specific surface area (SSA, 42.38 m²/g) as determined by BET analysis, enhancing active site availability and charge carrier mobility, while optical studies showed a lower band gap (4.21 eV), enabling improved photocatalytic performance. XPS confirmed Sm³⁺ and Nd³⁺ states, with distinct O 1s, Sm 3d, and Nd 3d peaks, verifying the formation of NCs. The TEM and SEM analyses of Nd₂O₃/Sm₂O₃ NCs showed spherical particles with a porous morphology, with average particle sizes of ∼91 nm and ∼0.048 μm, respectively, which in turn supports enhanced charge transfer and photocatalytic activity. Consequently, the Nd₂O₃/Sm₂O₃ NCs achieved higher degradation efficiencies 83.21 % (MB), 96.61 % (RhB), 97.92 % (MO), 97.55 % (MR), and 85.55 % (CR), than individual NPs, with faster reaction rate constants and shorter half-lives, while recyclability tests confirmed their stability and reusability. The increased photocatalytic efficiency of Nd₂O₃/Sm₂O₃ NCs, resulting from their larger surface area, reduced band gap, and improved charge separation, suggests their potential for wastewater treatment applications. Their radical scavenger experiments revealed that O₂∗ radical plays a major role in MB and RhB degradation, whereas h⁺ is more influential in the degradation of MO, MR, and CR. Furthermore, antibacterial studies against the bacterial strains <em>Escherichia coli</em> (<em>E. coli</em>) and <em>Staphylococcus aureus</em> (<em>S. aureus</em>) demonstrated superior antibacterial performance for Nd₂O₃/Sm₂O₃ NCs compared to individual oxides, emphasizing their potential for biomedical applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102734"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169983","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":"Stretchable fatigue-resistant embedded copper electrodes with high figure of merit","authors":"Xueyu Li ,&nbsp;Yongliang Zhang ,&nbsp;Qianqian Jia ,&nbsp;Jingxian Xu ,&nbsp;Chuanqian Shi ,&nbsp;Yinji Ma ,&nbsp;Jizhou Song ,&nbsp;Hongliang Zhang","doi":"10.1016/j.coco.2026.102736","DOIUrl":"10.1016/j.coco.2026.102736","url":null,"abstract":"<div><div>Flexible electronics are rapidly evolving, creating a strong demand for transparent electrodes that are not only highly conductive and transparent but also stretchable. This work presents a novel fabrication strategy based on one-step photolithography and electroplating to achieve a fully embedded horseshoe-shaped copper mesh, which demonstrates a superior combination of optoelectronic properties and mechanical durability compared to many existing transparent electrodes. The resulting electrode features a horseshoe-shaped copper mesh fully embedded in polydimethylsiloxane (PDMS), offering an ultra-low sheet resistance of 0.21 Ω/□, 82.9 % transmittance, and an outstanding figure of merit exceeding 8300. More importantly, the ESTCF demonstrates excellent mechanical durability, with only a fourfold increase in resistance after 3000 stretching cycles at 20 % strain. Using in-situ SEM and finite element analysis, We elucidate the stretching mechanism: it combines the geometric adaptation of the horseshoe structure with efficient stress dissipation at the metal and elastomer, a synergy that underpins system's exceptional stretchability. As a proof of concept, a transparent stretchable heater rapidly exceeds 100 °C at low voltage and maintains stable heating even when stretched up to 50 %. This work provides a reliable and scalable pathway toward high-performance stretchable transparent electrodes for next-generation wearable devices.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102736"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074832","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":"Surface modification of garnet fillers via an acidic small molecule agent enables compatible interfaces and high ion transport in solid-state composite electrolytes","authors":"Bingke Liu ,&nbsp;Yihui Liu ,&nbsp;Fei Wang ,&nbsp;Rongjie Luo ,&nbsp;Kele Miao ,&nbsp;Yanfang Liang ,&nbsp;Zhaochen Jiang ,&nbsp;Xianming Liu ,&nbsp;Xiaobin Sun ,&nbsp;Cheng Zhang ,&nbsp;Kunming Pan ,&nbsp;Guangxin Wang ,&nbsp;Yong Liu","doi":"10.1016/j.coco.2026.102744","DOIUrl":"10.1016/j.coco.2026.102744","url":null,"abstract":"<div><div>Garnet-type Li_6.4La₃Zr_1.4Ta_0.6O₁₂ (LLZTO) serves as an active filler in solid-state composite electrolytes for high-performance solid-state batteries because of its excellent conductivity, high chemical stability, and superior shear modulus. Nevertheless, composite electrolytes with LLZTO often exhibit slow Li⁺ transport and poor interface compatibility because of alkaline impurities (e.g., Li₂CO₃) formed on the LLZTO’s surface, hindering fast Li⁺ transport. Herein, we report a simple strategy to achieve in situ transformation of the alkaline impurities (Li₂CO₃) into an ion-conducting layer on the LLTZO’s surface via a trifluoromethanesulfonic acid (TfOH) treatment, which not only establishes effective interfacial contact with polyvinylidene fluoride (PVDF) but also facilitates Li⁺ transport. The resulting LiOTf layer can facilitate the formation of an LiF-enriched solid electrolyte interphase and a cathode–electrolyte interphase, which greatly improve the electrochemical performance of the solid state Li batteries with LiOTf@LLZTO electrolyte. Specifically, the PVDF/LiOTf@LLZTO electrolyte achieved a higher room-temperature ionic conductivity (6.0 × 10⁻⁴ S cm⁻¹) and a higher Li⁺ transference number of 0.45 than the PVDF@LLZTO electrolyte. Moreover, the symmetric battery with the PVDF/LiOTf@LLZTO electrolyte showed a stable cycling for 1200 h at 0.2 mA cm⁻², and the assembled Li|LiNi_0.8Co_0.1Mn_0.1O₂ full battery exhibited a high capacity retention rate of 88.1 % for 1000 cycles at 2 C.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102744"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169982","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":"A local load ratio approach to fatigue delamination growth simulation in CFRP aeronautical subcomponent","authors":"Angela Russo,&nbsp;Rossana Castaldo,&nbsp;Aniello Riccio","doi":"10.1016/j.coco.2026.102730","DOIUrl":"10.1016/j.coco.2026.102730","url":null,"abstract":"<div><div>Fatigue delamination is a critical damage mechanism in carbon fibre reinforced polymer (CFRP) laminates subjected to cyclic loading. In most simulations, the so-called envelope load method is adopted to avoid modelling the full load oscillation within each fatigue cycle, applying only the peak load while introducing the applied load ratio (<span><math><mrow><msub><mi>R</mi><mrow><mi>a</mi><mi>p</mi><mi>p</mi><mi>l</mi><mi>i</mi><mi>e</mi><mi>d</mi></mrow></msub><mo>=</mo><mfrac><msub><mi>P</mi><mi>min</mi></msub><msub><mi>P</mi><mi>max</mi></msub></mfrac></mrow></math></span>) into the damage law. However, this global ratio does not fully capture the local stress variations developing along an evolving delamination front. This study introduces a numerical approach that evaluates the local load ratio directly at each crack-front node. The formulation extends the classical Paris-law approach by incorporating the ratio between the minimum and maximum local energy release rates, expressed as <span><math><mrow><msub><mi>R</mi><mrow><mi>l</mi><mi>o</mi><mi>c</mi><mi>a</mi><mi>l</mi></mrow></msub><mo>=</mo><msup><mrow><mo>(</mo><mfrac><msub><mi>R</mi><mi>min</mi></msub><msub><mi>R</mi><mi>max</mi></msub></mfrac><mo>)</mo></mrow><mn>0.5</mn></msup></mrow></math></span>, and considering the mode-mixity of delamination progression. Here, <span><math><mrow><msub><mi>R</mi><mrow><mi>l</mi><mi>o</mi><mi>c</mi><mi>a</mi><mi>l</mi></mrow></msub></mrow></math></span> is defined based on the local energy release rates at the crack front, distinguishing it from the global applied load ratio <span><math><mrow><msub><mi>R</mi><mrow><mi>a</mi><mi>p</mi><mi>p</mi><mi>l</mi><mi>i</mi><mi>e</mi><mi>d</mi></mrow></msub></mrow></math></span>, commonly used in envelope-load simulations. The proposed method, named SMART LOOP, accurately captures the delaminated area independently of mesh size through an adaptive load step–time module. Numerical results have been validated against an experimental case from the literature involving a typical stiffened CFRP aerospace panel tested under compression–compression fatigue loading at different global load ratios. The proposed approach has provided a physically consistent description of fatigue damage accumulation in CFRP laminates and has demonstrated strong agreement with experimental trends, confirming its suitability for implementation within standard finite element frameworks for fatigue life assessment. Furthermore, the findings highlight the importance of accounting for the local load ratio when fatigue loading is applied at high global load ratios.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102730"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146169984","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":"Water-tuned dynamic hydrogen-bond networks and modulus mismatch synergy for interfacial toughening in bilayer hydrogels","authors":"Shan Jin,&nbsp;Xia Liu,&nbsp;Qingsheng Yang","doi":"10.1016/j.coco.2026.102713","DOIUrl":"10.1016/j.coco.2026.102713","url":null,"abstract":"<div><div>Hydrogels suffer from low modulus-induced crack propagation, restricting their applications due to insufficient fracture toughness. Bilayer systems can enhance fracture toughness via modulus mismatch, but its synergistic toughening mechanism with interfacial adhesion remains unclear. Herein, a bilayer hydrogel system was designed by integrating Zr⁴⁺-completed CNF-PAAM/PAA layers to create “soft-hard” modulus mismatch and a 0.1 mm CNF-PAAM/PAA interlayer for enhanced interfacial adhesion. The CNF-mediated dynamic hydrogen bonding networks in the interlayer address energy dissipation deficiency under dynamic loading. Experiments showed that with 0.63 wt% CNF content and 68.63 wt% water content, the interfacial adhesion energy reached 307 J/m², reducing the energy release rate by 29.7 % compared to the non-interlayer system. The elastic mismatch mechanism synergized with a 0.1 mm interlayer reduced stress concentration at the crack tip, increasing the critical elongation to 10. Based on Dundurs’ theory, an energy release rate expression considering water content was derived, revealing the quantitative synergistic toughening mechanism of “adhesion interface-modulus mismatch\".</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102713"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074272","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":"Robust heat-free curing via ‘SiNergy’ in action: Residual cure kinetics and thermal stability of epoxy Silicon Nitride / Tungsten Carbide dual filler nanocomposites","authors":"Gopal Krishna Bhagavatula ,&nbsp;Snaha Leena ,&nbsp;Krishna Prasad Rajan ,&nbsp;Selvin P. Thomas ,&nbsp;Rasana Nanoth ,&nbsp;Alessandro Pegoretti ,&nbsp;Jayanarayanan Karingamanna","doi":"10.1016/j.coco.2026.102735","DOIUrl":"10.1016/j.coco.2026.102735","url":null,"abstract":"<div><div>This work explores the synergistic effects of SiN and WC nanofillers on the residual curing behaviour and thermal degradation of epoxy (EP). DSC was used to evaluate residual curing characteristics, while TGA assessed thermal stability. HR-TEM confirmed that both nanofillers were uniformly dispersed and exhibited strong inter-particle and matrix interactions, suggesting effective integration into EP. The 0.5 wt% SiN/EP (ES2) exhibited near-to-complete curing, attributed to the hotball mechanism of silicon nitride (SiN), enhancing localized heat transfer which promotes crosslinking reactions. Tungsten carbide (WC) demonstrated minimal influence on the curing process, acting as a thermally inert filler in this context. However, the 0.25 wt% and 0.5 wt% of SiN/WC in EP showed improved curing efficiency compared to WC-based composites, confirming a synergistic interaction between the fillers. The activation energy (Ea) for residual curing was determined using model-free methods, such as the Kissinger and Ozawa methods, among others. ES2 displayed the lowest residual content with the highest E_a, suggesting more complete curing. Thermal degradation kinetics was studied using the Horowitz-Metzger, Coats-Redfern, and Friedman models. Among all formulations, the hybrid nanocomposite demonstrated superior thermal stability, attributed to the enhanced crosslink density induced by SiN and the good thermal barrier property of WC. The combined effect of these nanofillers resulted in increased activation energy for decomposition, indicating improved resistance to thermal degradation. These findings highlight the potential of combining SiN and WC nanofillers to engineer epoxy with enhanced curing efficiency and thermal durability, making them promising candidates for high-performance applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102735"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074829","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":"Finite element analysis of fatigue behavior in different structured composite variable vanes under coupled aerodynamic load and natural frequency","authors":"Chenchen Tan ,&nbsp;Yujia Zhai ,&nbsp;Zhongde Shan ,&nbsp;Zheng Sun ,&nbsp;Hao Huang ,&nbsp;Xuehao Shan ,&nbsp;Weihao Wang ,&nbsp;Zitong Guo","doi":"10.1016/j.coco.2026.102737","DOIUrl":"10.1016/j.coco.2026.102737","url":null,"abstract":"<div><div>With the increasing demand for lightweight aero-engines, composite variable vanes have become a research focus due to their exceptional design flexibility and fatigue resistance. However, challenges persist in understanding the complex damage mechanisms induced by anisotropic behavior and in predicting fatigue performance under coupled aerodynamic loads and natural frequencies. This study focuses on different structural composite variable vanes, systematically investigating an integrated analysis methodology for aerodynamic response and fatigue behavior. The manufacturing process of variable-thickness and variable-cross-section composite vanes was analyzed, followed by the design of fixture for variable vanes, where natural frequencies were obtained through swept-frequency testing. A progressive damage failure model was employed to predict the strength and stiffness of different mesoscale structures. This approach innovatively integrated mesoscale properties with a normalized life model and aerodynamic loading, thereby revealing the failure mechanisms under complex environmental conditions. The results demonstrate that a multiaxial three-dimensional woven composite (M3DWC) structure can effectively suppress damage propagation. Aerodynamic load distribution and vane natural frequencies were coupled to analyze the fatigue evolution paths, providing theoretical foundations for reliability assessment and multidisciplinary optimization of aerodynamic-fatigue performance in composite variable vanes.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"62 ","pages":"Article 102737"},"PeriodicalIF":7.7,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074831","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}