Composites Part A: Applied Science and Manufacturing最新文献

{"title":"Flipable dual mode composite fabric with spectral selectivity for dynamic infrared camouflage and thermal management","authors":"Ruize Qiao, Helan Wang, Ruyu Fan, Yaping Zhao, Zaisheng Cai","doi":"10.1016/j.compositesa.2026.110233","DOIUrl":"https://doi.org/10.1016/j.compositesa.2026.110233","url":null,"abstract":"","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"1 1","pages":"110233-110233"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861119","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":"Two-stage deep learning for the modeling and prediction of fiber volume fraction in soft-hard hybrid braided preform during compaction process","authors":"Baolong Mei,&nbsp;Jiuzhi Dong,&nbsp;Lipeng Xing,&nbsp;Rui Li,&nbsp;Xiuming Jiang","doi":"10.1016/j.compositesa.2026.109964","DOIUrl":"10.1016/j.compositesa.2026.109964","url":null,"abstract":"<div><div>To improve the Fiber Volume Fraction (FVF) of carbon/carbon (C/C) composite soft-hard hybrid braided preforms and reduce the interlayer deviation of fiber content, the traditional single compaction process is optimized. To address this challenge, this paper proposes a two-stage deep learning architecture to enhance the prediction accuracy for preform FVF. In the first stage, a neural network is used to construct a multiple regression model (NNMR) that incorporates multiple process parameters. Based on an investigation into the compaction mechanism of preforms, the influence of multiple process parameters on the FVF is analyzed. Specifically, the NNMR is employed to learn the nonlinear relationships between these parameters and the preform FVF. For the second stage, a Nonlinear Model Predictive Control (NMPC) framework is employed, where the fitted process parameters serve as model inputs and the preform FVF as the model output. By constraining the target range, dynamic and refined adjustments are performed to obtain the optimal combination of process parameters. Notably, this method can overcome the limitations of traditional compaction methods and achieve efficient, accurate, and reliable prediction of preform FVF, thereby providing theoretical support for preform compaction processes.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"209 ","pages":"Article 109964"},"PeriodicalIF":8.1,"publicationDate":"2026-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148180437","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":"Influence of 3D printing path and continuous Flax yarn reinforcement on the performance of additively manufactured T-joints for large-scale components","authors":"Natália V. dos Santos ,&nbsp;K.Sales de Oliveira ,&nbsp;T. Doca ,&nbsp;Alberto Giubilini ,&nbsp;Vitor F. de S. de Botton ,&nbsp;Paolo Minetola ,&nbsp;Mariana D. Banea ,&nbsp;Daniel Carlos T. Cardoso","doi":"10.1016/j.compositesa.2026.109609","DOIUrl":"10.1016/j.compositesa.2026.109609","url":null,"abstract":"<div><div>The design of optimized 3D printing paths is a key factor in improving the structural performance of continuous fiber-reinforced composites, especially for complex geometries are difficult to achieve using conventional manufacturing techniques. This study investigates the combined influence of continuous flax yarns as a bio-based reinforcement for Polylactic Acid and layer-wise printing path strategies on the mechanical response of printed components. Special emphasis is placed on T-joint configurations, which represent critical structural regions subjected to complex multi-axial stress states and govern load transfer and failure mechanism. Printing paths were specifically engineered to follow load-transfer directions, and intermediate reinforcement layers were introduced to enhance joint behavior. Experimental results demonstrate that both path optimization and continuous natural fiber reinforcement significantly improve the rotational response of the joints, leading to increased stiffness and moment capacity, as well as reduced brittleness and improved ductility when compared to unreinforced specimens. The results further indicate a synergistic interaction between adaptive path design and bio-based continuous yarn reinforcement, offering a viable route toward high-performance and sustainable continuous fiber-reinforced thermoplastic composites capable of sustaining complex loading conditions. In addition, a simplified bilinear model is proposed to describe the moment–rotation behavior of T-joint profiles, supporting structural interpretation and facilitating future numerical and design-oriented applications.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"204 ","pages":"Article 109609"},"PeriodicalIF":8.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077304","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":"Ultrahigh-strength polybenzoxazine@polyimide nanofiber aerogels enabled by coaxial 1D building blocks via semi-crystalline structuring","authors":"Xin Long ,&nbsp;Longfei Li ,&nbsp;Lichun Zhou ,&nbsp;Yu Wang ,&nbsp;Jubo Tang ,&nbsp;Jianan Qin ,&nbsp;Xiongbang Wei ,&nbsp;Ying Lin ,&nbsp;Peng Huang ,&nbsp;Jiaxuan Liao","doi":"10.1016/j.compositesa.2026.109607","DOIUrl":"10.1016/j.compositesa.2026.109607","url":null,"abstract":"<div><div>The performance drawback caused by low strength limits the independent application of aerogels in complex mechanical environments. To date, no effective method has been developed to optimize this property of aerogels without compromising other performance characteristics. Inspired by aerogel structural engineering design, we report a composite aerogel, named PBZ@PI-CA, which features a 1D building block with polyimide (PI) nanofiber as the endothecium, semi-crystalline polybenzoxazine (PBZ) as the periphery, and hydrophobic SiO₂ nanopowder (hydrophobic-260) discretely distributed on the outermost surface. A stable peptide bond connection is formed at the interface between the PBZ periphery and the PI nanofiber endothecium. This material exhibits numerous outstanding properties, including ultra-high strength, excellent deformability and elastic compressibility, excellent structural stability, remarkable lightweight high-strength characteristic, good thermal stability, high-efficiency thermal insulation, superhydrophobicity, and strong hydrophobic stability. The combination of these superior properties provides an attractive material system for thermal insulation and superhydrophobicity under complex mechanical environments.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"204 ","pages":"Article 109607"},"PeriodicalIF":8.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077303","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":"High-impact marine antifouling HDPE composites based on synergistic covalent and ionic bonding with poly (hexamethylene guanidine)","authors":"Xiurong Hou ,&nbsp;Jiaqi Wang ,&nbsp;Ruihuan Wang ,&nbsp;Sitong Zhang ,&nbsp;Wenwen Yu ,&nbsp;Jiangao Shi","doi":"10.1016/j.compositesa.2026.109576","DOIUrl":"10.1016/j.compositesa.2026.109576","url":null,"abstract":"<div><div>The high-density polyethylene (HDPE)/ethylene–acrylic acid block copolymer (EAA)/poly (hexamethylene guanidine) (PHMG) composites with outstanding comprehensive properties were successfully fabricated through the synergistic design of covalent and ionic bonds with PHMG. Structural characterization confirmed the formation of amide bonds, while rheological and thermal analyses jointly demonstrated that the covalent bonded PHMG significantly enhanced molecular chain entanglement. This entanglement effect led to synergistic optimization of both tensile strength and toughness in this composite. Compared to pure HDPE, the HDPE/EAA/PHMG composites showed a slight decrease in tensile strength but a substantial 302 % surge in impact strength. Ionic bond modification of the composite material via PHMG solution immerse effectively enhanced its antibacterial properties, demonstrating good inhibitory effects against both <em>E. coli</em> and <em>S. aureus</em>. Furthermore, the modified material exhibits outstanding antifouling performance, reducing <em>Chlorella</em> attachment by 91.6 %. A three-month in marine test further validated its effective inhibition of algal growth. This research offers innovative material design concepts and technical pathways for developing high-performance marine antifouling materials that integrate significantly boosted toughness with outstanding antifouling performance.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109576"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974202","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":"Sodium alginate/polyacrylic acid/halloysite nanotube fibers fabricated by wet spinning for salinity gradient power generation","authors":"Yuqian Xu ,&nbsp;Xiangyu Chen ,&nbsp;Xinyuan Zhou ,&nbsp;Ming Huang ,&nbsp;Mingxian Liu","doi":"10.1016/j.compositesa.2026.109574","DOIUrl":"10.1016/j.compositesa.2026.109574","url":null,"abstract":"<div><div>Ion transport through nanosized pores or channels can be used for salinity gradient power generation. In this study, sodium alginate/polyacrylic acid/halloysite nanotubes (SA/PAA/HNTs) composite fiber materials were fabricated using wet spinning technology via a shear-induced assembly strategy. The electrostatic repulsion among SA, PAA, and HNTs effectively prevented the close packing of molecular chains. Meanwhile, the applied shear force promoted the preferred alignment of HNTs along the fiber axis. This ordered arrangement imparts the fibers with pronounced birefringent optical properties. The hierarchical pore structure formed within the material offers efficient pathways for ion transport and significantly reduces ion migration resistance. By systematically adjusting the SA-to-PAA mass ratio (within 3:1 to 1:2), HNTs content (0–15 wt%), and spinning parameters (extrusion pressure from 5 to 120 psi), we achieved precise control over the fiber’s microstructure and overall performance. Notably, the unique hollow tubular structure of HNTs offers nanoscale channels for ion conduction, while the hydrophilic matrix formed by SA and PAA provides a favorable environment for ion dissolution and mobility. This multifunctional fiber, integrating optical responsiveness with enhanced ion transport, presents an innovative approach for developing smart textiles and next-generation salinity gradient energy harvesting systems.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109574"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974277","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":"Reversible interfacial chemistry enables closed-loop recycling and highly thermal conductivity of EPDM/waste rubber composites","authors":"Hongmin Sun ,&nbsp;Xu Han ,&nbsp;Dewang Hou ,&nbsp;Kai Zheng ,&nbsp;Yuze Xu ,&nbsp;Chunlin Li ,&nbsp;Ruiguang Li ,&nbsp;Chengjie Li","doi":"10.1016/j.compositesa.2026.109562","DOIUrl":"10.1016/j.compositesa.2026.109562","url":null,"abstract":"<div><div>Elastic thermal interface materials (TIMs) are essential for electronics thermal management, yet conventional elastomers struggle to achieve high thermal conductivity at low filler loadings while retaining recyclability. Concurrently, high-value upcycling of waste rubber powder (WRP) remains challenging. Herein, a sustainable, highly thermal conductive ethylene-propylene-diene monomer (EPDM)-IA/PA@Al₂O₃/WRP/CNTs TIM with closed-loop physical/chemical recyclability was engineered through dynamic interfacial chemistry and multiscale thermal conductive pathways. Esterification formed dynamic β-carboxy ester bonds between phytic acid-modified alumina (PA@Al₂O₃) and itaconic anhydride-functionalized EPDM (EPDM-IA), while Zn²⁺ coordination interacted with ring-opened anhydride groups to form supramolecular linkages. Incorporation of CNTs to bridge PA@Al₂O₃ established nanoscale heat transfer network, and utilization of WRP to promote macroscopic thermal pathways via volume exclusion. The optimized composite achieved an exceptional thermal conductivity of 2.2  W/m·K, meanwhile exhibiting excellent thermal aging resistance, mechanical/thermal conduction property retention, rapid temperature response and efficient photothermal conversion, significantly reducing CPU operating temperature. This work establishes a paradigm for designing sustainable TIMs through synergistic dynamic bonding and multi-scale thermal pathway engineering, simultaneously advancing electronics heat dissipation and high-value WRP upcycling.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109562"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923009","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":"Multifunctional carbon nanotube@expanded graphite/polydimethylsiloxane composites with exceptional electromagnetic interference shielding and thermal management capability","authors":"Zifu Zhu ,&nbsp;Dan Liu ,&nbsp;Tianzeng Hong ,&nbsp;Jie Xue ,&nbsp;Chuanbing Li ,&nbsp;Yuxuan Sun ,&nbsp;Xiaobo Gao ,&nbsp;Qingbin Zheng","doi":"10.1016/j.compositesa.2026.109563","DOIUrl":"10.1016/j.compositesa.2026.109563","url":null,"abstract":"<div><div>Multifunctional electromagnetic interference (EMI) shielding composites with integrated thermal management capability are in high demand for modern electronic devices. However, porous-structured EMI shielding materials inherently exhibit poor thermal conductivities. Herein, a carbon nanotube (CNT)@expanded graphite (EG)/polydimethylsiloxane (PDMS) composite with both excellent EMI shielding and thermal management performance is designed and fabricated by integrating CNT networks into the EG framework <em>via</em> chemical vapor deposition (CVD), followed by PDMS infiltration. Based on the hierarchical porous architecture and three-dimensional (3D) electrically conductive network, the CNT@EG/PDMS composite exhibits ultrahigh EMI shielding effectiveness (<em>SE</em>) in the X-band (8.2–12.4 GHz) along both vertical (79.1 dB) and horizontal (61.7 dB) directions. Concurrently, due to the formation of a 3D thermally conductive network, the CNT@EG/PDMS achieves impressive in-plane (11.64 W·m⁻¹·K⁻¹) and out-of-plane (1.31 W·m⁻¹·K⁻¹) thermal conductivities (TC) at a CNT@EG loading of 18.7 wt%. Additionally, when subjected to a 1.5 V voltage, the CNT@EG/PDMS composite exhibits rapid and efficient Joule heating, achieving a high temperature of 98.6 °C within 30 s. The newly designed CNT@EG/PDMS composites with superior EMI <em>SE</em>, TC and Joule heating provide new insights into the design of highly integrated electronic materials for next-generation EMI shielding and thermal management.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109563"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923010","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":"Evaluation of the informed isotropic (IISO) viscosity model for compression molding of discontinuous fiber reinforced polymers","authors":"Louis Schreyer,&nbsp;Constantin Krauß,&nbsp;Florian Wittemann,&nbsp;Luise Kärger","doi":"10.1016/j.compositesa.2025.109552","DOIUrl":"10.1016/j.compositesa.2025.109552","url":null,"abstract":"<div><div>The informed isotropic (IISO) viscosity model has gained popularity as a surrogate for fourth-order tensor viscosity models in simulating injection and compression molding of discontinuous fiber reinforced composites in industrial applications, primarily to overcome numerical challenges that are especially pronounced in long fiber reinforced materials. In addition, the IISO model can be easily integrated into (commercial) isotropic frameworks. The central idea is to equate the energy dissipation rates resulting from a fully anisotropic and an isotropic viscous material model, which allows deriving a scalar surrogate viscosity that depends on the local fiber orientation. However, the model’s fundamental capability to predict anisotropic flow behavior in compression molding remains limited. This work comprehensively assesses the IISO viscosity model’s capabilities through analytical and numerical investigations of fundamental flow scenarios. We demonstrate that the IISO viscosity model cannot generate elliptical deformation in lubricated squeeze flow of initially cylindrical samples with spatially homogeneous and anisotropic initial fiber orientation states, confirming the model’s inherent limitation due to stress–strain-rate coaxiality. When we extend the analysis to non-lubricated squeeze flow, the results emphasize that the IISO viscosity model also fails to produce anisotropic flow regardless of the spatially homogeneous and (aligned) orthotropic initial fiber orientation state. Furthermore, we demonstrate that the compression-molding-style center-gated disk benchmark is inconclusive, as the flow trajectory depends on the magnitude of the imposed perturbation rather than the fiber orientation. The perturbation also introduces a physically implausible circumferential vortex. Finally, we discuss potential sources of apparent anisotropic behavior in numerical flow simulations in the literature and highlight the challenges of parameterizing the IISO viscosity model experimentally.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109552"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923013","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 dual-stage analytical model for FRPs drilling considering step structure","authors":"Jie Xu ,&nbsp;Pingfa Feng ,&nbsp;Huanhong Lin ,&nbsp;Chun Liu ,&nbsp;Haibo Bi ,&nbsp;Feng Feng","doi":"10.1016/j.compositesa.2025.109544","DOIUrl":"10.1016/j.compositesa.2025.109544","url":null,"abstract":"<div><div>This study investigates the influence of the step drill geometric characteristics on critical thrust force (CTF) using an analytical modeling. The study is motivated by the fact that step drill has proven to minimise delamination phenomena in comparison to twist drills. However, the existing CTF analytical models predominantly focus on the discussion of single-stage load mode based on twist drills. In contrast, the inherent two-stage geometry of step drills exhibits different material removal mechanisms and load distributions. Single-stage analysis is evidently inapplicable. To fill this gap, a dual-stage analytical model is developed that explicitly accounts for the local cutting mechanism and load contributions in each stage. The model incorporates critical geometric characteristic of step drills (e.g., the front-section point angle, transition angle, front-section radius, and shank radius). By comparison with existing models, the dual-stage analytical model demonstrates superior accuracy in CTF evolution throughout step drilling. Across the two stages, deviations from experimental measurements are 13.6% and 15.4%, respectively, representing a substantial improvement over exiting model, which exhibits deviations exceeding 150% under varying geometric parameters. In addition, as key factor, increasing the front-section point angle from 90° to 120° reduces the CTF by approximately 10%. These findings enhance the theoretical understanding of the geometric characteristics of step drills and highlight the necessity of a consideration of two stages.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"203 ","pages":"Article 109544"},"PeriodicalIF":8.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923016","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}