Composites Communications最新文献

Enhanced thermal and mechanical properties of polyamide-based carbon fiber composites via radial carbon network: Insights from microstructural engineering and interfacial compatibility 通过径向碳网络增强聚酰胺基碳纤维复合材料的热力学性能：来自微观结构工程和界面相容性的见解

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-17 DOI: 10.1016/j.coco.2025.102463

Jiamei Liu , Xiaohui Yang , Shuaishuai Zhou , Peng Zhang , Tongle Xu , Peng Ding

{"title":"Enhanced thermal and mechanical properties of polyamide-based carbon fiber composites via radial carbon network: Insights from microstructural engineering and interfacial compatibility","authors":"Jiamei Liu , Xiaohui Yang , Shuaishuai Zhou , Peng Zhang , Tongle Xu , Peng Ding","doi":"10.1016/j.coco.2025.102463","DOIUrl":"10.1016/j.coco.2025.102463","url":null,"abstract":"<div><div>The synergistic optimization of thermal management and mechanical properties is a central challenge for the application of carbon fiber composites in high power electronics and lightweight structures. In this study, a multiscale synergistic strategy of “radiation freezing-interfacial welding-in situ interlocking” was proposed to successfully prepare three-dimensional (3D) polyamide composites reinforced by radial carbon networks. Through directional freezing to induce the formation of radially oriented interpenetrating networks between carbon fibers and graphene oxide, combined with stepwise thermal reduction to construct carbon-carbon covalent interfaces, and in-situ polymerization to achieve matrix chain segment penetration and interfacial stress transfer reinforcement. At 12 wt% filler loading, the composite achieved a thermal conductivity of 3.41 W m<sup>−1</sup> K<sup>−1</sup> (1605 % improvement over the matrix), along with compressive strength of 173 MPa, which breaks through the inverted performance limitations of polymer composites. This work provides a new material design paradigm for electronic packaging and aerospace lightweight structures and its cross-scale interface engineering strategy opens up new paths for the development of multifunctional composites.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102463"},"PeriodicalIF":6.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A controllable salting-out engineering strategy to promote the anisotropic thermal conductivity performances of BNNS@PVA aerogel-based composites by constructing thermal transfer network 通过构建传热网络提高BNNS@PVA气凝胶基复合材料各向异性导热性能的可控盐析工程策略

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-16 DOI: 10.1016/j.coco.2025.102456

Kaifeng Wang , Siyu Liu , Hua Li , Xinke Liu , Yingxia Liu , Hezhou Liu

{"title":"A controllable salting-out engineering strategy to promote the anisotropic thermal conductivity performances of BNNS@PVA aerogel-based composites by constructing thermal transfer network","authors":"Kaifeng Wang , Siyu Liu , Hua Li , Xinke Liu , Yingxia Liu , Hezhou Liu","doi":"10.1016/j.coco.2025.102456","DOIUrl":"10.1016/j.coco.2025.102456","url":null,"abstract":"<div><div>Thermal interface materials (TIMs) with excellent thermal conductivity are urgently required to tackle serious heat accumulation issues within the miniaturized electronic devices in electronic packaging field. Constructing thermal conductive network can enhance the thermal conductivity of polymer-based TIMs, but significantly restricted by the filler content and the orientation, thereby limiting the directional heat transfer behavior. In this work, BNNS@PVA aerogel with anisotropic thermal conductive network is proposed by sequential synthesizing routines, including the construction of PVA aerogel template by directional freeze-drying, surface assembly of BNNS-OH on the skeleton by dip-coating, and the alignment of the interconnected thermal conductive network by salting-out treatment. The relationship between the thermal conductive network microstructure and the thermal conductivity performance of BNNS@PVA is investigated by physiochemical characterizations and finite element simulation. By optimizing the filler content and the salting-out conditions comprehensively, the resulting aerogel with well-aligned microstructure achieves thermal conductivity of 4.63 W m<sup>−1</sup> K<sup>−1</sup> and anisotropic thermal coefficient of 473. Besides, the heat dissipation, compressive, and dielectric properties of the aerogels are performed. This research provides a promising strategy to enhance thermal conductivity performance by controlling the anisotropic alignment of the thermal conductive networks effectively, presenting great potential in the advanced polymer-based TIMs.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102456"},"PeriodicalIF":6.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of metamaterial absorbers based on FCIP@C@MoS2 composites via digital light processing for broadband microwave absorption 基于FCIP@C@MoS2复合材料的超材料宽带微波吸收材料的数字光处理制备

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-14 DOI: 10.1016/j.coco.2025.102459

Chenyang Li, Quandai Wang, Bingyang Zhu, Linxin Wang, Dajing Gao, Zhenyi Yuan

{"title":"Fabrication of metamaterial absorbers based on FCIP@C@MoS2 composites via digital light processing for broadband microwave absorption","authors":"Chenyang Li, Quandai Wang, Bingyang Zhu, Linxin Wang, Dajing Gao, Zhenyi Yuan","doi":"10.1016/j.coco.2025.102459","DOIUrl":"10.1016/j.coco.2025.102459","url":null,"abstract":"<div><div>A microwave absorbents of multi-component core-shell structures Flaky carbonyl iron @C@MoS<sub>2</sub> (FCIP@C@MoS<sub>2</sub>) was synthesized. The photopolymer slurry containing only 15 wt% absorbents exhibits exceptional microwave absorption performance by effectively leveraging the synergistic effects of magnetic and dielectric properties. Based on the electromagnetic parameters of the prepared absorbing composites, the metamaterial absorbers (MMAs) were designed, and their geometric parameters were optimized using CST simulation software. The cell structure of the MMAs was fabricated through Digital Light Processing (DLP) 3D printing by using the developed photopolymer slurry. The absorber with optimized parameters achieves an effective absorption bandwidth (EAB) of 5.6–18 GHz and demonstrates wide-angle absorption characteristics up to 45° at a thickness of 7.2 mm, with a density of only 1.28 g/cm<sup>3</sup>. Notably, the low absorbents content not only enhances curing efficiency and printing resolution in DLP processing significantly, but even more, the lightweight design meets practical application requirements.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102459"},"PeriodicalIF":6.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of NaOH / NaCl pretreatment on the properties of rape straw flour /PVC composites NaOH / NaCl预处理对油菜秸秆粉/PVC复合材料性能的影响

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-14 DOI: 10.1016/j.coco.2025.102455

Zhongqing Yang, Keping Zhang, Yang Zhang, Junqian Yang, Yanan Zhang, Xi Zhang

{"title":"Effects of NaOH / NaCl pretreatment on the properties of rape straw flour /PVC composites","authors":"Zhongqing Yang, Keping Zhang, Yang Zhang, Junqian Yang, Yanan Zhang, Xi Zhang","doi":"10.1016/j.coco.2025.102455","DOIUrl":"10.1016/j.coco.2025.102455","url":null,"abstract":"<div><div>In order to improve the interface compatibility between plant fibers and polymer matrix and enhance the performance of wood plastic composites (WPCs), sodium hydroxide (NaOH) and sodium chloride (NaCl) were used to modify rape straw, and the rape straw flour/polyvinyl chloride (RSF/PVC) composites were prepared by the single-screw extrusion method. The chemical composition, crystal structure and thermal stability of the composites were analyzed by FTIR, XRD and TG, and the microstructure, physics, mechanics, fire resistance, abrasive wear and water absorption performance of the composites were characterized. The results showed that the chemical composition of the composites was not significantly affected by pretreatments. The composites treated with NaCl have higher crystallinity, and the thermal stability and fire resistance are better than treated with NaOH. The tensile strength and bending strength of the composites treated with 5 % NaOH reached the optimum, which were 30.35 MPa and 56.87 MPa respectively. The maximum impact strength of the composites treated with 7 % NaCl was 5.48 kJ/m<sup>2</sup>, and the combustion mass loss rate, specific wear rate and water absorption rate were the lowest, which were 26.40 %, 2.08 × 10<sup>−2</sup> mm<sup>3</sup> (N m)<sup>−1</sup> and 7.55 % respectively. Therefore, salt treatment is a potential and more environmentally friendly pretreatment method to improve the properties of WPCs.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102455"},"PeriodicalIF":6.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of flexible, robust, freestanding PTFE fiber film/PTFE particles-fluorinated polyimide hierarchical sandwich composites with ultra-low dielectric constant for high-frequency applications 柔性，坚固，独立式聚四氟乙烯纤维薄膜/聚四氟乙烯颗粒-含氟聚酰亚胺分层夹层复合材料的开发，具有超低介电常数的高频应用

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-14 DOI: 10.1016/j.coco.2025.102461

Kun Peng , Xinyan Yang , Baoyu Du , Yujie You , MD Zahidul Islam , Azim Abdullaev , Yaqin Fu , Hongbo Dai

{"title":"Development of flexible, robust, freestanding PTFE fiber film/PTFE particles-fluorinated polyimide hierarchical sandwich composites with ultra-low dielectric constant for high-frequency applications","authors":"Kun Peng , Xinyan Yang , Baoyu Du , Yujie You , MD Zahidul Islam , Azim Abdullaev , Yaqin Fu , Hongbo Dai","doi":"10.1016/j.coco.2025.102461","DOIUrl":"10.1016/j.coco.2025.102461","url":null,"abstract":"<div><div>Advanced flexible dielectric materials have long been sought to meet the growing demands of high-frequency and high-speed applications. Herein, a composite system was first synthesized by blending water-soluble fluorinated poly (amic acid) ammonium salt (FPAAs) with polytetrafluoroethylene particles (PTFE<sub>P</sub>), namely PTFE<sub>P</sub>-FPAAs. Then, unique and freestanding PTFE<sub>F</sub>/PTFE<sub>P</sub>-fluorinated polyimide (FPI) composite sandwich films (50–90 μm thick) combining PTFE fiber film (PTFE<sub>F</sub>) core with PTFE<sub>P</sub>-FPI film sheets were fabricated via a facile layer-by-layer process. The dielectric, thermal, mechanical, and hydrophobic properties of the proposed composite films were systematically investigated. The optimal performance achieved by the PTFE<sub>F</sub> (30 vol%)/PTFE<sub>P</sub> (40 vol%)-FPI sandwich film in the high-frequency range (8.2–12.4 GHz and 12–18 GHz) present an ultra-low dielectric constant of 1.84 (at 10 GHz), dielectric loss factor of 0.005, and dielectric strength of 213.0 kV/mm. Theoretical analyses employing coupled dielectric constant and dipole polarization models, provided further insights into the observed dielectric behavior. The incorporation of PTFE<sub>F</sub>, PTFE<sub>P</sub>, and the sandwich structure synergistically enhanced the dielectric performance. Additionally, a large-deformation (15 % and 45 % compressive strain) cyclic buckling test was conducted to evaluate the mechanical robustness of the sandwich films. This work demonstrates a solid experimental and theoretical foundation for the development of advanced dielectric composite materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102461"},"PeriodicalIF":6.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hollow RuO2 fibers with B-modification for enhanced water oxidation electrocatalysis in both acidic and alkaline media 在酸性和碱性介质中增强水氧化电催化的b改性空心RuO2纤维

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-13 DOI: 10.1016/j.coco.2025.102452

Zhenhai Zhi , Xiaokun Fan , Xing Tian , Jidong Niu , Tanxu Sun , Daohao Li , Lijie Zhang , Dongjiang Yang

{"title":"Hollow RuO2 fibers with B-modification for enhanced water oxidation electrocatalysis in both acidic and alkaline media","authors":"Zhenhai Zhi , Xiaokun Fan , Xing Tian , Jidong Niu , Tanxu Sun , Daohao Li , Lijie Zhang , Dongjiang Yang","doi":"10.1016/j.coco.2025.102452","DOIUrl":"10.1016/j.coco.2025.102452","url":null,"abstract":"<div><div>Water electrocatalysis efficiency is hindered by the sluggish electrochemical reactions involved, particularly the oxygen evolution reaction (OER). Even the benchmark RuO<sub>2</sub> demonstrates low activity and poor stability. Therefore, a sophisticated design of the micro-nano and electronic structures of RuO<sub>2</sub> is needed. In this study, one-dimensional (1D) hollow RuO<sub>2</sub> fibers modified with metalloid B (B-RuO<sub>2</sub>-HF) were synthesized using renewable alginate fibers as templates. Leveraging the advantages of 1D hollow structure along with electronic modulation induced by B, B-RuO<sub>2</sub>-HF exhibits remarkable OER activity and stability in both acidic and alkaline media. Specifically, it achieves low overpotentials (η<sub>10</sub>) of 220 mV at pH = 0 and 208 mV at pH = 14. The corresponding proton exchange membrane (PEM) electrolyzer and two-electrode alkaline electrolyzer performances highlight its substantial practical potential and versatile applicability. Experiments confirm that B atoms are stably incorporated within the RuO<sub>2</sub> while effectively suppressing Ru overoxidation, thereby enhancing stability. Theoretical calculations indicate that the incorporation of B leads to charge accumulation at the Ru-B bond, resulting in electron depletion at Ru sites. This modulation weakens the binding strength between Ru and oxo-intermediates, consequently lowering the energy barrier for OER.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102452"},"PeriodicalIF":6.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Graphene/hexagonal boron nitride hetero-fillers for enhanced interfacial thermal conductance in polymer nanocomposites 石墨烯/六方氮化硼异质填料增强聚合物纳米复合材料界面导热性

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-12 DOI: 10.1016/j.coco.2025.102453

Youzhe Yang , Richard (Chunhui) Yang , Huanzhi Song , Jie Yang , Yingyan Zhang

{"title":"Graphene/hexagonal boron nitride hetero-fillers for enhanced interfacial thermal conductance in polymer nanocomposites","authors":"Youzhe Yang , Richard (Chunhui) Yang , Huanzhi Song , Jie Yang , Yingyan Zhang","doi":"10.1016/j.coco.2025.102453","DOIUrl":"10.1016/j.coco.2025.102453","url":null,"abstract":"<div><div>Paraffin-based polymer nanocomposites, reinforced with thermally conductive nanofillers, have been widely utilized as cost-effective thermal interface materials (TIMs) for efficient heat management in electronic systems. In this study, we delve in new paraffin nanocomposites reinforced with graphene/h-BN (GBN) heterostructures for improving their thermal performance. Based on intensive reverse non-equilibrium molecular dynamics (RNEMD) simulations, we showed that the GBN-paraffin interfacial thermal conductance (ITC) is improved through modifications of GBN nanofillers with three functional groups – methyl (-CH<sub>3</sub>), hydroxyl (-OH) and carbon-doping (C-doping). From detailed mean squared displacement (MSD) and vibrational density of states (VDOS) analyses, we discovered that the -CH<sub>3</sub> functional group is the most effective strategy because it causes stronger phonon interactions and facilitates greater phonon coupling at the interface. Furthermore, effective medium theory (EMT) calculations unveil the intricate interplay between filler size and volume fraction in maximizing thermal conductivity. These findings provide valuable material design guidelines and insights into leveraging GBN as a high-efficiency thermal conductive filler for advanced thermal management applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102453"},"PeriodicalIF":6.5,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring zirconia-halloysite bioactive sponge scaffold for effective healing of infected bone defect 定制氧化锆-高岭土生物活性海绵支架有效愈合感染骨缺损

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-12 DOI: 10.1016/j.coco.2025.102454

Swetha Shanmugam , Kumar Ponnuchamy , Amutha Santhanam

{"title":"Tailoring zirconia-halloysite bioactive sponge scaffold for effective healing of infected bone defect","authors":"Swetha Shanmugam , Kumar Ponnuchamy , Amutha Santhanam","doi":"10.1016/j.coco.2025.102454","DOIUrl":"10.1016/j.coco.2025.102454","url":null,"abstract":"<div><div>Infected bone defects present a significant challenge in orthopedics, requiring biomaterials that not only promote bone regeneration but also provide effective infection control. This study presents a carboxymethyl cellulose (CMC)-based sponge scaffold fabricated with functionalized halloysite nanotubes (fHNT) and zirconia (ZrO<sub>2</sub>) nanoparticles using a freeze-drying technique. The rationale behind this approach is to leverage the osteogenic properties of the scaffold while utilizing the antimicrobial potential of the dual drug loading system, enabling simultaneous promotion of bone regeneration and infection control. To enhance the therapeutic effectiveness, the sponge scaffold was loaded with a dual antibiotic system, comprising ampicillin (Amp) and gentamicin sulphate (GS), selected for their broad-spectrum antibacterial activity. <em>In vitro</em> drug release experiments demonstrated a controlled diffusion pattern, aligning with the Higuchi model. Hemocompatibility tests confirmed the sponge scaffold's biocompatibility, while <em>in vitro</em> assays demonstrated robust osteogenic potential, evidenced by enhanced alkaline phosphatase (ALP) activity, calcium mineralization, and collagen deposition. Additionally, the dual drug-loaded sponge scaffold exhibited significant biofilm inhibition against <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>, emphasizing its efficacy in infection control. The chorioallantoic membrane assay (CAM) further revealed its angiogenic potential. This dual-functional sponge scaffold offers a promising solution for the infected bone defects by combining osteogenesis and antimicrobial activity in a single platform, addressing the limitations of current treatment and offering a clinically relevant solution to improve outcomes.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102454"},"PeriodicalIF":6.5,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of MXene/CNTs hybrid fillers via covalent bonding for enhancing mechanical properties of polyamide composites 共价键法合成MXene/CNTs杂化填料增强聚酰胺复合材料力学性能

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-11 DOI: 10.1016/j.coco.2025.102451

Jinping Guo, Xi Lu, Guangyu Zhu, Yanxia Cao, Yanyu Yang, Jianfeng Wang, Wanjie Wang

{"title":"Synthesis of MXene/CNTs hybrid fillers via covalent bonding for enhancing mechanical properties of polyamide composites","authors":"Jinping Guo, Xi Lu, Guangyu Zhu, Yanxia Cao, Yanyu Yang, Jianfeng Wang, Wanjie Wang","doi":"10.1016/j.coco.2025.102451","DOIUrl":"10.1016/j.coco.2025.102451","url":null,"abstract":"<div><div>A new super-tough PA composites was developed via two-step melt blending with POE-g-MAH and chemical hybrid MXene/Carbon nanotubes (M6C) fillers. This new chemical hybrid filler was prepared by the chemical reaction between 6-Aminohexanol-modified Carbon nanotubes (CNTs) and MXene grafted with p-aminobenzoic acid. M6C fillers can effectively reduce the sizes of POE-g-MAH domains and selectively distribute in the interface between the matrix and POE-g-MAH. Particularly, the tensile strength of PA1012/mPOE/M6C composites (weight ratio = 90:10:1) increased by 28.58 % compared with PA1012/mPOE (45.09 MPa), and the impact toughness reached up to 98.27 kJ/m<sup>2</sup>, which was about 10 times higher than neat PA1012 matrix. It also found that the key mechanical parameters of these composites were corresponding to the gel point acquired from rheology data. Furthermore, the mechanism of super toughness and reinforcement of PA composites had been investigated. This research will bring new sights for controlling the structure and properties of polymer composites.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102451"},"PeriodicalIF":6.5,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Direct FE2 multiscale method for modeling the three-dimensional elastoplastic behavior of composite laminates 直接FE2多尺度法模拟复合材料层合板三维弹塑性行为

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-05-11 DOI: 10.1016/j.coco.2025.102422

Jing-Pei Du, Jing-Fen Chen

{"title":"Direct FE2 multiscale method for modeling the three-dimensional elastoplastic behavior of composite laminates","authors":"Jing-Pei Du, Jing-Fen Chen","doi":"10.1016/j.coco.2025.102422","DOIUrl":"10.1016/j.coco.2025.102422","url":null,"abstract":"<div><div>In this work, the nonlinear elastoplastic mechanical behavior of three-dimensional unidirectional fiber-reinforced composites is simulated using a multiscale method - Direct <span><math><msup><mrow><mi>FE</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>. In this method, the macroscopic and microscopic degrees of freedom (DOFs) are directly coupled through kinematic constraints to define the scale transition relations in a single finite element analysis. Its numerical implementation avoids intricate coding, thus, exhibiting higher computational efficiency. Furthermore, numerical simulations using this method only require the constitutive relationships of the microscopic components of the Representative Volume Element (RVE). In this study, the heterogeneous RVE containing elastic fiber and plastic matrix is built to obtain the macroscale homogeneous constitutive behavior of composite laminates, and capture the evolution of solution-dependent state variables of microscale components. The nonlinear response of matrix is described using a 3D elastoplastic model with its numerical integration algorithm based on radial return method and implemented using a user-defined subroutine UMAT in the finite element procedure ABAQUS. The effectiveness of the proposed Direct <span><math><msup><mrow><mi>FE</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> multiscale method is demonstrated through two different size models including a single macroscale element model and a whole unidirectional laminate model. It is shown that the macroscale stress–strain curves predicted by Direct <span><math><msup><mrow><mi>FE</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> agree well with the experimental results.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"57 ","pages":"Article 102422"},"PeriodicalIF":6.5,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0