Composites Science and Technology最新文献

Scalable structural supercapacitors with graphene-modified high-surface-area electrodes 石墨烯修饰高表面积电极的可伸缩结构超级电容器

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-26 Epub Date: 2026-02-27 DOI: 10.1016/j.compscitech.2026.111585

Sian Ying Chen , Sourav Patranabish , Kathrin Weiland , Qixiang Jiang , Alexander Bismarck , Ludovic Jourdin , Kunal Masania

{"title":"Scalable structural supercapacitors with graphene-modified high-surface-area electrodes","authors":"Sian Ying Chen , Sourav Patranabish , Kathrin Weiland , Qixiang Jiang , Alexander Bismarck , Ludovic Jourdin , Kunal Masania","doi":"10.1016/j.compscitech.2026.111585","DOIUrl":"10.1016/j.compscitech.2026.111585","url":null,"abstract":"<div><div>Electrification, including emerging technologies such as structural supercapacitors, is critical in realizing carbon-neutral transportation. A fundamental challenge is the trade-off between mechanical properties and energy storage capabilities. We report the fabrication of structural supercapacitors with a novel fibre-fibre interface to improve the interlaminar strength and encapsulation while considering the effect of structural resin on energy storage performance. The synthesized graphene nanoplatelets-modified electrodes attain a high specific surface area of ∼231 m<sup>2</sup> g<sup>−1</sup> - outperforming comparable carbon-based electrodes. We learned that the use of a gel-polymer electrolyte (GPE) separator containing 60 wt% Li-salt eliminates the requirement of electrolyte infusion and showed the highest values for conductivity for the cell produced using GPE. The implementation of glass fabrics (GFs) into the GPE improved the flexural modulus by ∼22%, while retaining the mechanical strength of the cells. The multifunctional performance of the produced SSCs were on par or even outperformed the performances of SSCs reported in literature. A proof-of-concept prototype demonstrates that gel-polymer electrolyte cells can retain charges for longer than those with a glass fibre separator. Cumulatively, these offer the possibility of conventional composite manufacturing techniques to scale-up and eliminate delamination issues arising from different thermal expansion coefficients which also addresses the balance between mechanical stability and electrochemical performance. Our findings support the advancement of durable, lightweight energy storage and delivery systems for sustainable transportation, with potential applications in robotics and wearable technologies.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"279 ","pages":"Article 111585"},"PeriodicalIF":9.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Construction of multifunctional carboxylated nitrile butadiene composite films: Integration of degradability, antioxidant and antibacterial functions 多功能羧基丁腈复合膜的构建：降解、抗氧化和抗菌功能的集成

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-26 Epub Date: 2026-03-04 DOI: 10.1016/j.compscitech.2026.111598

Jilei Han, Zhe Wang, Yuxuan Yang, Dan Liu, Chunmei Niu, Ruolin Wang

{"title":"Construction of multifunctional carboxylated nitrile butadiene composite films: Integration of degradability, antioxidant and antibacterial functions","authors":"Jilei Han, Zhe Wang, Yuxuan Yang, Dan Liu, Chunmei Niu, Ruolin Wang","doi":"10.1016/j.compscitech.2026.111598","DOIUrl":"10.1016/j.compscitech.2026.111598","url":null,"abstract":"<div><div>Aiming at the main application bottlenecks of long degradation cycle and poor antibacterial property of disposable carboxylated nitrile butadiene rubber (XNBR) gloves, APS-iron (APS-Fe) chelate was employed as a multifunctional modifier to prepare XNBR/APS-Fe composite films through compounding and vulcanization processes. Utilizing APS-Fe's dual properties (metal-catalyzed aging and biodegradability), we established a “catalysis-biology” dual-driven rapid degradation system. The service life of the XNBR/1.5APS-Fe composite film to reach the 75% threshold of fracture retention at 25 °C was only 4.34 years, significantly shorter than its natural degradation cycle. With the synergistic effect of the active groups of APS and Fe<sup>3+</sup>, the composite film exhibited remarkably enhanced scavenging capacity for hydroxyl radicals and DPPH radicals, effectively addressing the shortcoming of weak antibacterial property of pure XNBR. The antibacterial capacity of XNBR/1.5APS-Fe against <em>Escherichia coli</em> was prominent, 11.4 times higher than that of pure XNBR. Additionally, the mechanical properties and solvent resistance of XNBR films were also improved. The novel composite film combines excellent properties such as degradability, antioxidant activity, and antibacterial safety. These findings provide a scientific and practical solution for the development of functional disposable rubber products.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"279 ","pages":"Article 111598"},"PeriodicalIF":9.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 bio-inspired interface modification strategy for suppressing insulation degradation of aramid fiber/epoxy composites 抑制芳纶/环氧复合材料绝缘降解的仿生界面改性策略

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-26 Epub Date: 2026-03-06 DOI: 10.1016/j.compscitech.2026.111590

Xiaoxiao Kong , Ge Zhang , Yan Liu , Xiaolan Li , Yun Chen , Yifang Wang , Boxue Du

{"title":"A bio-inspired interface modification strategy for suppressing insulation degradation of aramid fiber/epoxy composites","authors":"Xiaoxiao Kong , Ge Zhang , Yan Liu , Xiaolan Li , Yun Chen , Yifang Wang , Boxue Du","doi":"10.1016/j.compscitech.2026.111590","DOIUrl":"10.1016/j.compscitech.2026.111590","url":null,"abstract":"<div><div>Designing effective interfaces for aramid fiber/epoxy (AF/EP) composites in electrical insulation applications is particularly challenging, given that interfacial failure is prone to occur at the AF/EP interface due to charge accumulation and inherent modulus mismatch. Inspired by mussel byssus and nacre, a bionic interface modification strategy is developed in this study, which integrates polydopamine coating and nanosilica (SiO<sub>2</sub>) onto the fiber surface through a hierarchical assembly approach. The results show that the interfacial shear strength and interlaminar shear strength of the composites are improved by 126.46% and 47.86% respectively, due to the synergistic effects of enhanced interface bonding strength, mechanical interlocking and successful construction of gradient modulus transition layer. Furthermore, more charge traps and energy scattering centers are introduced by SiO<sub>2</sub>. Consequently, interfacial insulation degradation process under high voltage is significantly suppressed in the channel length, cumulative damage area, and breakdown time. Compared to the unmodified AF/EP composites, the modified composites demonstrate exceptional dielectric properties with DC conductivity decreased by 83.38%, dielectric loss reduced by 10.36% and breakdown strength enhanced by 29.43%. This interface functionalization strategy provides novel insights into the performance improvement of AF/EP composites for high-end power equipment subjected to combined electrical and mechanical stresses.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"279 ","pages":"Article 111590"},"PeriodicalIF":9.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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–numerical phase-field modelling of ductile and fatigue fracture in short fibre-reinforced polymeric adhesives 短纤维增强聚合物胶粘剂韧性和疲劳断裂的实验-数值相场模拟

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-26 Epub Date: 2026-03-03 DOI: 10.1016/j.compscitech.2026.111588

Aamir Dean , Maryam Hematipour , Pavan Kumar Asur Vijaya Kumar , Raimund Rolfes

{"title":"Experimental–numerical phase-field modelling of ductile and fatigue fracture in short fibre-reinforced polymeric adhesives","authors":"Aamir Dean , Maryam Hematipour , Pavan Kumar Asur Vijaya Kumar , Raimund Rolfes","doi":"10.1016/j.compscitech.2026.111588","DOIUrl":"10.1016/j.compscitech.2026.111588","url":null,"abstract":"<div><div>Structural adhesives are essential in wind turbine blades, where bonded joints are subjected to complex static and cyclic loading and are prone to fatigue-driven failure. Recently developed short fibre-reinforced polymeric (SFRP) adhesives offer enhanced mechanical performance, but their fracture behaviour is strongly influenced by fibre orientation and anisotropy. This study presents an experimental–numerical framework for predicting quasi-static and fatigue fracture in SFRP adhesives using a phase-field approach. An experimental campaign, including quasi-static and tension-tension fatigue tests with full-field strain measurements, reveals pronounced anisotropic elasto-plastic behaviour, orientation-dependent fatigue life, and distinct damage mechanisms under monotonic and cyclic loading. Based on these observations, an anisotropic phase-field model for ductile fracture is developed and coupled with an invariant-based transversely isotropic elasto-plastic constitutive formulation with pressure sensitivity and non-associative plastic flow. Fatigue effects are incorporated through a thermodynamically consistent degradation of fracture toughness driven by accumulated energy dissipation. The model is implemented within a finite element framework and validated against experiments through simulations of dog-bone and single-edge notched specimens. The numerical results show very good agreement with experimental stress–strain responses, S-N curves, and crack initiation and propagation behaviour, demonstrating the capability of the proposed framework to predict the durability of SFRP adhesive joints under static and cyclic loading.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"279 ","pages":"Article 111588"},"PeriodicalIF":9.8,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 PEDOT:PSS/PVA/Co3O4 nanocomposite films with absorption-dominated EMI shielding performance 具有吸收主导电磁干扰屏蔽性能的柔性PEDOT:PSS/PVA/Co3O4纳米复合薄膜

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-02 DOI: 10.1016/j.compscitech.2026.111554

Rishi Mohanan , Raneesh Balakrishnan , Karthika Shylaja , Nandakumar Kalarikkal , Reshna Suresh , Nirmala Rachel James

{"title":"Flexible PEDOT:PSS/PVA/Co3O4 nanocomposite films with absorption-dominated EMI shielding performance","authors":"Rishi Mohanan , Raneesh Balakrishnan , Karthika Shylaja , Nandakumar Kalarikkal , Reshna Suresh , Nirmala Rachel James","doi":"10.1016/j.compscitech.2026.111554","DOIUrl":"10.1016/j.compscitech.2026.111554","url":null,"abstract":"<div><div>The increasing reliance on high-frequency electronics has intensified the need for lightweight and efficient electromagnetic interference (EMI) shielding materials. In this work, PEDOT:PSS/PVA/Co<sub>3</sub>O<sub>4</sub> nanocomposite films were developed using a conductive polymer–metal oxide composite design strategy to overcome the limited conductivity and weak attenuation mechanisms of conventional polymer shields. By varying the Co<sub>3</sub>O<sub>4</sub> content from 0 to 40 wt%, a clear correlation was established between the structure and properties, linking the nanoparticle dispersion with the high-frequency electromagnetic response. Structural, morphological, elemental, mechanical, and electrical analyses collectively demonstrate the effective dispersion of Co<sub>3</sub>O<sub>4</sub> nanoparticles within the conductive PEDOT:PSS/PVA matrix. EMI analyses reveal that absorption-related attenuation dominates over reflection due to the combined effects of conductive loss, interfacial polarization, and multiple scattering. The EMI shielding effectiveness across the X, Ku, and K bands confirms that the high shielding performance of the optimal sample is attributed to its proximity to the optimal dispersion state and uniform filler distribution. These findings highlight a rationally engineered, flexible, and lightweight nanocomposite with strong potential for next-generation communication, aerospace, and wearable electronic systems.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111554"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 unified phase field model for continuous damage and chemically driven healing in self-healing composites 自愈复合材料连续损伤和化学驱动愈合的统一相场模型

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-07 DOI: 10.1016/j.compscitech.2026.111560

Tong Xia , Wenyi Gong , Qiang Bao , Dayong Hu , Zhenyu Yang , Zixing Lu

{"title":"A unified phase field model for continuous damage and chemically driven healing in self-healing composites","authors":"Tong Xia , Wenyi Gong , Qiang Bao , Dayong Hu , Zhenyu Yang , Zixing Lu","doi":"10.1016/j.compscitech.2026.111560","DOIUrl":"10.1016/j.compscitech.2026.111560","url":null,"abstract":"<div><div>Self-healing composites hold transformative potential for engineering structures by enabling autonomous damage repair, thereby substantially enhancing the damage tolerance and extending service life. This study develops a unified continuum phase-field model to systematically characterize the intrinsic healing mechanisms in such composites. The model fundamentally incorporates the diffusion of healing agents driven by chemical energy and integrates both damage evolution and healing recovery within a variational framework base on free energy minimization. A phase-field variable captures the diffusive damage state, while an independent healing field variable quantifies the restoration of mechanical properties. Finally, the damage and healing status of the material are uniformly described by using the effective damage degree variable. Governing equations are derived rigorously via the free energy minimization variational principle, ensuring thermodynamic consistency. A key advancement is the incorporation of stress-state regulation on healing, which accurately captures compressive-stress accelerated crack closure and tensile-stress inhibited healing behavior. For numerical implementation, customized user subroutines are developed in Abaqus, establishing a fully coupled solution scheme for healing dynamics, damage phase field, and displacement field. The model is validated through numerical simulations of healing performance in tapered double cantilever beams, and by reproducing the complete damage-healing trajectory in nacreous composites, including crack initiation, propagation, and subsequent healing. The results demonstrate that the model effectively captures crack growth and healing behaviors in composites with complex architectures, consequently providing a robust theoretical basis to guide the design and optimization of self-healing composites.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111560"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Structural composite battery: Reinforced carbon fibre electrodes within a porous polyethersulfone matrix 结构复合电池：多孔聚醚砜基质内的增强碳纤维电极

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-07 DOI: 10.1016/j.compscitech.2026.111555

Qixiang Jiang , Cedric Normand , Francois Beauchamp , Alexander Beutl , Olivier Hubert , Alexander Bismarck

{"title":"Structural composite battery: Reinforced carbon fibre electrodes within a porous polyethersulfone matrix","authors":"Qixiang Jiang , Cedric Normand , Francois Beauchamp , Alexander Beutl , Olivier Hubert , Alexander Bismarck","doi":"10.1016/j.compscitech.2026.111555","DOIUrl":"10.1016/j.compscitech.2026.111555","url":null,"abstract":"<div><div>A method to produce multifunctional structural battery composites comprising carbon fibre reinforced anodes and cathodes, and electrolyte filled bicontinuous polymer matrix is disclosed. Lithium iron phosphate (LFP) and lithium titanate (LTO) were deposited onto carbon fibres by electrophoretic deposition (EPD) to produce multifunctional cathodes and anodes, respectively. EPD allowed for an even coating of individual carbon fibres depositing 30 wt% of active materials with respect to carbon fibre current collectors. Carbon fibre reinforced cathode (LFP@CF), separator and anode (LTO@CF) were stacked and impregnated using polyethersulfone (PES) in N-methyl-2-pyrrolidone (NMP) solution; the PES was subsequently precipitated by non-solvent induced phase separation forming a porous high-performance polymer matrix within the stack. The porous matrix binds the carbon fibres and separator while providing sufficient openness for the electrochemical interface. The LFP@CF | separator | LTO@CF/PES assembly had an average Young's modulus of 27 ± 10 GPa and tensile strength of 282 ± 65 MPa. Structural battery composites possessed an energy density of 63 Wh/kg<sub>LFP</sub> or 2 Wh/kg<sub>battery</sub> at charge rate of 0.1C and were able to be cyclically dis/charged for more than 400 h.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111555"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Green preparation of poly(vinyl alcohol)/phosphorylated nanocellulose composite film with excellent flame retardancy, high transparency and high strength 绿色制备的聚乙烯醇/磷酸化纳米纤维素复合膜具有优异的阻燃性、高透明度和高强度

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-12 DOI: 10.1016/j.compscitech.2026.111579

Enhui Liu, Jiayu Zhang, Zhidong Liu, Xuan Wang, Li Li

{"title":"Green preparation of poly(vinyl alcohol)/phosphorylated nanocellulose composite film with excellent flame retardancy, high transparency and high strength","authors":"Enhui Liu, Jiayu Zhang, Zhidong Liu, Xuan Wang, Li Li","doi":"10.1016/j.compscitech.2026.111579","DOIUrl":"10.1016/j.compscitech.2026.111579","url":null,"abstract":"<div><div>Novel and environmentally benign flame-retardant plastic films that maintain outstanding physical performance are urgently needed for high-tech fields. Herein, sodium hydroxide (NaOH) was innovatively used to pre-swelling dried sugarcane pulp to effectively enhance the immersion of urea and ammonium dihydrogen phosphate, obtaining phosphorylated cellulose with high phosphorus loading. By combining with micro-fluidization, the in-situ stripping of phosphorylated cellulose was achieved, successfully preparing phosphorylated nanocellulose (PNC) with phosphorus content as high as 12.2 wt% and a three-dimensional network, breaking through the problem of low phosphorus content in traditional PNC preparation from sugarcane pulp. PNC was further introduced into PVA film, significantly improving its flame retardancy and mechanical properties, while maintaining good transparency. With 12.5 wt% PNC, the composite film pasted the VTM-0 grade of UL-94, and reach a limiting oxygen index (LOI) of 28.0%. The tensile strength of the composite film also increased from 56.6 MPa of pure PVA film to 70.8 MPa, and the visible light transmittance remained at 81.9%, which was comparable to pure PVA (85.8%). This work overcomes the long-standing trade-off between flame retardancy, transparency and mechanical performance via designing bio-based flame retardants and constructing nanostructures, establishing an innovative paradigm for the development of sustainable high-performance packaging materials for electronic and electrical packaging.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111579"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Design, fabrication, and characterization of 3D printed continuous fiber composite lattice structures via discrete insert-module assembly 通过离散插入模块组装的3D打印连续纤维复合材料晶格结构的设计、制造和表征

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-06 DOI: 10.1016/j.compscitech.2026.111549

Cheng Gong , Qingxu Liu , Jian Xiong

{"title":"Design, fabrication, and characterization of 3D printed continuous fiber composite lattice structures via discrete insert-module assembly","authors":"Cheng Gong , Qingxu Liu , Jian Xiong","doi":"10.1016/j.compscitech.2026.111549","DOIUrl":"10.1016/j.compscitech.2026.111549","url":null,"abstract":"<div><div>3D printed continuous fiber reinforced composite lattices offer compelling advantages for lightweight structures, but current approaches face challenges in manufacture and mechanical characterization. We introduce a discrete insert-module assembly process and a lattice topology tailored to continuous fiber 3D printing. A closed-form theoretical model and a high-fidelity finite element framework are established and validated against quasi-static compression tests. Results show that complex spatial lattices can be fabricated by assembling planar inserts, and that the proposed theory and simulations predict stiffness and strength within ∼10% of experiments. Compared to reported 3D printed composite lattices, the present structures achieve competitive mechanical properties and higher continuous fiber load-bearing efficiency when normalized by continuous fiber volume fraction, indicating effective alignment of continuous fibers with principal load paths. These findings provide both experimental evidence and a predictive toolkit for engineering spatial structures using 3D printed continuous fiber composites.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111549"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 transverse mechanical properties of continuous carbon fibre reinforced composites via staggered-layer printing method 交错层列印法提高连续碳纤维增强复合材料横向力学性能

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2026-05-03 Epub Date: 2026-02-13 DOI: 10.1016/j.compscitech.2026.111575

Heng Cai , Yuan Chen , Yingpeng He , Jiashu Sheng , Lin Ye

{"title":"Enhancing transverse mechanical properties of continuous carbon fibre reinforced composites via staggered-layer printing method","authors":"Heng Cai , Yuan Chen , Yingpeng He , Jiashu Sheng , Lin Ye","doi":"10.1016/j.compscitech.2026.111575","DOIUrl":"10.1016/j.compscitech.2026.111575","url":null,"abstract":"<div><div>The transverse mechanical performance is known to be usually weak in Continuous Carbon Fibre Reinforced Composites (CCFRCs) fabricated through Fused Filament Fabrication (FFF), impeding their engineering applications. To address this issue, a Staggered-Layer Printing (SLP) method is proposed based on FFF to produce the CCFRCs with enhanced transverse mechanical properties. First, the optimal melt deposition width was determined based on microscopic characterizations. And then, multi-scale models were constructed based on the mesoscopic features of CCFRCs manufactured using both the conventional fabrication method, i.e., Aligned-Layer Printing (ALP) and the proposed SLP method. Finally, the tensile tests and short beam shear tests were performed to obtain the mechanical properties of printed specimens. Experimental validations on 90° specimens were performed, showing that the transverse Young's modulus and tensile strength of the ALP specimens are 3.6 GPa and 22.4 MPa respectively, while those of the SLP specimens are 4.8 GPa and 44.1 MPa respectively. Furthermore, the change of the meso-structure due to the SLP method has enhanced the printed specimens' critical fracture toughness, resulting in a substantial improvement of 97% in the transverse strength of additively manufactured CCFRCs. The main reason is attributed to the stress redistribution that impedes the crack propagation along the weak intra-layer interfaces in SLP specimens. Accordingly, the numerical model was developed to evaluate the critical fracture strength and fracture toughness inside printed filaments in the transverse direction as 73 MPa and 0.6 mJ/mm<sup>2</sup>, respectively. Hence, the specific meso-structure generated from SLP is effective to significantly improve the transverse load-bearing capacity of FFF-printed CCFRCs without compromising their longitudinal properties.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"278 ","pages":"Article 111575"},"PeriodicalIF":9.8,"publicationDate":"2026-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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