Composites Part A: Applied Science and Manufacturing最新文献_第2页

Optimization of interfacial bonding between graphene-enhanced polyethylene liners and CFRP composites using plasma treatment for hydrogen storage applications 用等离子体处理优化石墨烯增强聚乙烯衬垫与CFRP复合材料之间的界面键合

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-10-03 DOI: 10.1016/j.compositesa.2025.109336

J. Ubaid , J.J. Andrew , C. Sandaruwan , W.J. Cantwell , K.A. Khan , W. Sampson , P. Potluri , R. Umer

{"title":"Optimization of interfacial bonding between graphene-enhanced polyethylene liners and CFRP composites using plasma treatment for hydrogen storage applications","authors":"J. Ubaid , J.J. Andrew , C. Sandaruwan , W.J. Cantwell , K.A. Khan , W. Sampson , P. Potluri , R. Umer","doi":"10.1016/j.compositesa.2025.109336","DOIUrl":"10.1016/j.compositesa.2025.109336","url":null,"abstract":"<div><div>As the need for sustainable hydrogen storage solutions increases, enhancing the bonding interface between polymer liners and carbon fiber-reinforced polymer (CFRP) in Type IV hydrogen tanks is essential to ensure tank integrity and safety. This study investigates the effect of plasma treatment on polyethylene (PE) and PE/graphene nanoplatelets (GNP) composites to optimize bonding with CFRP, simulating the liner-CFRP interface in hydrogen tanks. Initially, plasma treatment effects on PE surfaces were assessed, focusing on plasma energy and exposure time, with key surface modifications characterized and bonding performance being evaluated. Plasma treatment on PE/GNP composites, with increasing GNP content, was then examined, comparing the bonding effectiveness of untreated and plasma-treated samples. Wedge peel tests revealed that plasma treatment significantly enhanced PE-CFRP bonding, with optimal conditions at 510 W and 180 s resulting in 212 % and 165 % increases in the wedge peel strength and fracture energy, respectively. Plasma-treated PE/GNP composites with 0.75 wt.% GNP achieved a notable bonding enhancement with CFRP, showing 528 % and 269 % improvements in strength and fracture energy over untreated neat PE-CFRP samples. These findings offer practical implications for improving the mechanical performance of hydrogen storage tanks, contributing to safer and more efficient hydrogen storage systems for a sustainable energy future.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109336"},"PeriodicalIF":8.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263131","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

Novel concepts for automated fibre placement ply-drops with higher strength 具有更高强度的自动纤维放置的新颖概念

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-10-02 DOI: 10.1016/j.compositesa.2025.109334

Erfan Kazemi , Adam Whitehouse , Soraia Pimenta , James Finlayson , Silvestre T. Pinho

{"title":"Novel concepts for automated fibre placement ply-drops with higher strength","authors":"Erfan Kazemi , Adam Whitehouse , Soraia Pimenta , James Finlayson , Silvestre T. Pinho","doi":"10.1016/j.compositesa.2025.109334","DOIUrl":"10.1016/j.compositesa.2025.109334","url":null,"abstract":"<div><div>Automated fibre placement (AFP) is key for large-scale manufacturing of composite structures, but has some drawbacks, such as the saw-tooth geometry of ply-drops. We propose and develop original concepts for AFP ply-drop configurations that demonstrate an enhanced mechanical performance compared to traditional ply-drops in tapered carbon fibre-reinforced polymer (CFRP) composites. To achieve this, we developed and manufactured two designs of tapered CFRP composites using an AFP machine. The first design (baseline) involves conventionally laying down CFRP slit-tapes, with the tape ends terminated perpendicularly (at 90°). The second design (proposed in this work) incorporates terminating the tape ends at specific angles, a unique feature integrated into our AFP machine. Following manufacturing of the tapered CFRP specimens, to investigate the performance of the developed concepts, we designed a bespoke test rig to allow off-centre point loads on cantilever-like specimens; this test configuration can represent an idealised foreign object damage on fan engine blades (caused by runway debris or bird strike events). Following mechanical characterisation, we conducted post-mortem analyses to examine the differences in failure mechanisms between the two designs. The test results show that the new concept can increase the maximum load and maximum displacement by at least 10 % compared to the conventional ply-drop design. Additionally, post-mortem analysis shows that failure changed from undesirable compressive failure at the root in conventionally designed specimens to desirable tensile failure at the ply-drop region in the novel developed specimens.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109334"},"PeriodicalIF":8.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217612","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

Controllable construction and performance response regulation of diamond@EGaInSn-based bicontinuous phase thermal interface materials diamond@EGaInSn-based双连续相热界面材料的可控结构及性能响应调控

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-10-02 DOI: 10.1016/j.compositesa.2025.109332

Wendong Wang , Song Wei , Jingdong Guo

{"title":"Controllable construction and performance response regulation of diamond@EGaInSn-based bicontinuous phase thermal interface materials","authors":"Wendong Wang , Song Wei , Jingdong Guo","doi":"10.1016/j.compositesa.2025.109332","DOIUrl":"10.1016/j.compositesa.2025.109332","url":null,"abstract":"<div><div>The relentless miniaturization and 3D integration of high-power electronic devices have created an urgent demand for thermal interface materials (TIMs) that simultaneously achieve high thermal conductivity and mechanical compliance. Here, diamond@EGaInSn (Eutectic gallium indium tin alloy)/polysiloxane bicontinuous phase (BCP) thermal pads with high thermal performance and excellent elasticity were fabricated via molding combined with low-temperature vacuum infiltration. Remarkably, microstructural analysis confirms the formation of interpenetrating diamond@EGaInSn and polysiloxane 3D networks, where EGaInSn alloy uniformly coats diamond surfaces and forms liquid bridges to create continuous thermal pathways. This thermal pad achieves a high thermal conductivity of 25.85 W/(m·K) and ultralow interfacial contact thermal resistance (ICTR) of 0.35 K·mm<sup>2</sup>/W, significantly outperforming commercial TIMs. The BCP thermal pads achieves exceptional compressive properties and mechanical robustness (deformation less than 20 μm) through EGaInSn’s dual functionality as both thermal conductor and deformable matrix. The bending stiffness of BCP thermal pads increases with applied pressure due to reduced interparticle spacing and enhanced mechanical interlocking between diamond reinforcements. Heat dissipation test results show that the BCP thermal pad exhibits superior thermal conductivity to commercial TIMs. In summary, this bicontinuous phase design provides a new paradigm for multifunctional TIMs.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109332"},"PeriodicalIF":8.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263129","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

Bioinspired multifunctional gradient hydrogel composite fabricated via phase separation and in situ polymerization with exceptional mechanical, electrical, and adhesive properties 通过相分离和原位聚合制备的仿生多功能梯度水凝胶复合材料具有优异的机械，电气和粘合性能

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-10-02 DOI: 10.1016/j.compositesa.2025.109335

Hanshen Huang , Lin Mei , Qian Liu , Jie Tian , Wei Pan , Haiying Jia , Tianzhi Luo

{"title":"Bioinspired multifunctional gradient hydrogel composite fabricated via phase separation and in situ polymerization with exceptional mechanical, electrical, and adhesive properties","authors":"Hanshen Huang , Lin Mei , Qian Liu , Jie Tian , Wei Pan , Haiying Jia , Tianzhi Luo","doi":"10.1016/j.compositesa.2025.109335","DOIUrl":"10.1016/j.compositesa.2025.109335","url":null,"abstract":"<div><div>Hydrogels have demonstrated extensive applications in fields such as flexible sensors and electronic skin due to their exceptional flexibility and biocompatibility. However, conventional hydrogels face significant challenges in achieving a harmonious combination of mechanical properties, electrical conductivity, and adhesive capabilities. Herein, we propose a bioinspired gradient composite hydrogel that mimics the hierarchical epidermal-dermal-tissue structure of human skin, integrating mechanical support, conductive sensing, and interfacial adhesion functions. This hydrogel composite employs a triple-layered gradient architecture: (1) A mechanical support layer based on a salt-outing reinforced polyvinyl alcohol network achieves exceptional toughness (4.72 MJ·m<sup>−3</sup>), significantly enhancing fracture resistance; (2) A conductive sensing layer achieves high ionic conductivity pathways by adjusting dextran and ammonium sulfate concentrations; (3) An adhesive layer utilizing covalent crosslinking between poly(acrylic acid) grafted with N-hydroxysuccinimide ester and cutaneous amino groups, delivers superior tissue adhesion strength. The triple-layered hydrogel composite exhibits outstanding sensing capabilities and excellent robustness. The gel remains linearity and over 94 % resistance stability even after 1000 cycles of 20 % strain, which could strongly support the application of long term precisely detecting both strain and temperature variations. Overall, this gradient hydrogel provides a multifunctional interface for wearable electronics, intelligent interactive systems, and biomedical engineering.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109335"},"PeriodicalIF":8.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263082","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

Biomimetic synthesis of a micro/nano-structured basic magnesium carbonate: Green and highly efficient flame-retardant PBAT composite material 微纳米结构碱式碳酸镁的仿生合成：绿色高效阻燃PBAT复合材料

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-30 DOI: 10.1016/j.compositesa.2025.109330

Jiaying Xu , Zhenfeng Cheng , Fuhao Yu , Zhimin Song , Jing Fang , Hao Li , Bibo Wang , Yuan Hu

{"title":"Biomimetic synthesis of a micro/nano-structured basic magnesium carbonate: Green and highly efficient flame-retardant PBAT composite material","authors":"Jiaying Xu , Zhenfeng Cheng , Fuhao Yu , Zhimin Song , Jing Fang , Hao Li , Bibo Wang , Yuan Hu","doi":"10.1016/j.compositesa.2025.109330","DOIUrl":"10.1016/j.compositesa.2025.109330","url":null,"abstract":"<div><div>Poly (butylene adipate-co-butylene terephthalate) (PBAT) is a biodegradable and environmentally friendly material. However, due to its flammability and the formation of molten droplets during combustion, green flame retardants need to be added to enhance fire safety while maintaining environmental friendliness. In this work, a rod-shaped magnesium hydroxide carbonate (BMC) was synthesized as a flame retardant and combined with the bio-based phytic acid melamine supramolecular (PM). The micrometer-sized rod-shaped BMC acts as the “corn cob”, while the spherical particles formed by PM supramolecules act as the “corn kernels”. They are structurally locked together through acid-base neutralization, forming a unique “corn-like” hetero-sized assembly structure (PMBMC). When 20 wt% PMBMC is added to PBAT, the composite material passes the UL-94 test and the LOI reaches 28.8 %. Meanwhile, it can reduce PHRR, THR, and MARHE by 82.9 %, 12.2 %, and 69.1 %. Additionally, SP, CO<sub>2</sub>P, and COP are reduced by 92.7 %, 81.3 %, and 82.6 %, respectively. Moreover, compared with the unmodified flame retardant, the Eb and Ts of PBAT/PMBMC increase by 13.6 %, and 51.6 % due to the hydrogen bond. In conclusion, this study provides a new idea for the development of efficient and environmentally friendly PBAT green material flame retardant and smoke suppressant by using natural bio-based materials.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109330"},"PeriodicalIF":8.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263080","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

Rapid fabrication of high strength PEEK/CNTs composites with segregated structure and weld repair through microwave sintering 微波烧结快速制备具有分离结构的高强度PEEK/CNTs复合材料及焊缝修复

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-30 DOI: 10.1016/j.compositesa.2025.109333

Jiewei Hu, Tao Yang, Di Wu, Jie Zhang

{"title":"Rapid fabrication of high strength PEEK/CNTs composites with segregated structure and weld repair through microwave sintering","authors":"Jiewei Hu, Tao Yang, Di Wu, Jie Zhang","doi":"10.1016/j.compositesa.2025.109333","DOIUrl":"10.1016/j.compositesa.2025.109333","url":null,"abstract":"<div><div>Fabrication of conductive polymer composites (CPCs) with segregated structure to achieve electromagnetic interference (EMI) shielding while maintaining mechanical properties remains a challenging issue. In this work, high strength polyether-ether ketone (PEEK)/carbon nanotubes (CNTs) composites with segregated conductive networks were facilely fabricated via microwave sintering (MS). The selective heating behavior and temperature distribution during MS were investigated from both macroscopic and microscopic perspectives, revealing a unique heating mechanism. The coated CNTs layer was selectively heated under microwave irradiation, leading to welding of the PEEK matrix. This promoted molecular entanglement across interfaces, improving mechanical properties while maintaining the integrity of the segregated structure. Consequently, PEEK/5 wt% CNTs composites fabricated by MS exhibited excellent conductivity (17.3 S/m) and EMI SE (31.7 dB) in the X-band region,along witha high tensile strength of 81.2 MPa, which was 54.1 % higher than that of CM sample with comparable electrical properties. Finally, this technique was innovatively applied for weld repair of fractured samples. This study provides a novel, economical and energy saving strategy not only for the rapid fabrication of high strength PEEK/CNTs composites with segregated structure, but also for the field of rapid weld repair of polymer materials.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109333"},"PeriodicalIF":8.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217610","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

Fluorinated graphene oxide with tunable vertical graft density for the simultaneous enhancement of compressive and tensile properties in aramid fibers 具有可调垂直接枝密度的氟化氧化石墨烯，可同时增强芳纶纤维的压缩和拉伸性能

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-30 DOI: 10.1016/j.compositesa.2025.109313

Xueyong Deng, Peipei Liu, Haihong Zhu, Zheng Li, Zihao Zhang, Yongjiu Li, Longbo Luo, Xiangyang Liu

{"title":"Fluorinated graphene oxide with tunable vertical graft density for the simultaneous enhancement of compressive and tensile properties in aramid fibers","authors":"Xueyong Deng, Peipei Liu, Haihong Zhu, Zheng Li, Zihao Zhang, Yongjiu Li, Longbo Luo, Xiangyang Liu","doi":"10.1016/j.compositesa.2025.109313","DOIUrl":"10.1016/j.compositesa.2025.109313","url":null,"abstract":"<div><div>Inferior compressive strength of organic fibers restricts their widespread application. Simultaneously improving the axial/transverse properties and tensile properties of organic fibers remains a significant challenge. To overcome this challenge, a modified fluorinated graphene oxide (GOP) with tunable vertical graft density was designed via C-F bond nucleophilic reactions to reinforce poly(p-phenylene-benzimidazole-terephthalamide) (PBIA) fibers. Direct fluorination technology successfully preserves the oxygen-containing groups when introducing C-F bonds into graphene oxide (GO), thus providing hydrogen bonding sites. Together with the π-π interactions generated by the grafted PBIA chains, this combination contributes to the superior dispersion stability of GOP compared to graphene and GO. Composite fibers co-mixedwith GOP and PBIA prepared by solution spinning exhibited enhanced crystallinity. The vertically grafted chains formed a stable topological network, improving chain interactions within the composite fibers. Hence, by adjusting the PBIA chain grafting density, the composite fibers exhibited an 87.4% increase in axial compressive strength and a 37.2% increase in transverse compressive strength, along with improvements in tensile strength, modulus and interfacial shear strength. Moreover, molecular and finite element simulations confirmed that vertically grafted PBIA chains induce GOP layerdeflection, optimizing axial stress transmission and distribution within the fiber, ultimately leading to a more significant improvement in axial compressive performance compared to transverse compressive performance.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109313"},"PeriodicalIF":8.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263133","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

Experimental analysis and quality optimization of honeycomb seal structures processed via grinding-assisted electrochemical discharge machining 磨削辅助电化学放电加工蜂窝密封结构的实验分析及质量优化

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-29 DOI: 10.1016/j.compositesa.2025.109325

Lu Wang, Xiaoyun Hu, Ningsong Qu, Jinhao Wang, Hansong Li

{"title":"Experimental analysis and quality optimization of honeycomb seal structures processed via grinding-assisted electrochemical discharge machining","authors":"Lu Wang, Xiaoyun Hu, Ningsong Qu, Jinhao Wang, Hansong Li","doi":"10.1016/j.compositesa.2025.109325","DOIUrl":"10.1016/j.compositesa.2025.109325","url":null,"abstract":"<div><div>Metal honeycomb seal rings are widely used in aerospace field due to their excellent sealing performance. Electrochemical discharge machining (ECDM) can be used to process honeycomb seal structures, but the molten products restrict machining efficiency and surface quality. Therefore, in order to improve the machining quality, this study proposes the use of Grinding-assisted ECDM (G-ECDM) for the manufacturing of honeycomb seal structures through theoretical and experimental investigations. By analyzing the molten product formation and G-ECDM mechanism, it was found that the abrasive effect height should exceed the molten product height, so the selection of abrasive effect height was 40 μm. The energy distribution proportions (EDPs) were obtained by measuring the electric and grinding force signals to characterize the relationship between the machining parameters and energy forms. The experimental results were used to analyze the influence of different EDPs on the results, including surface morphology, cross-sectional morphology, excessive corrosion depth, single-wall thinning width, and material removal rate. Moreover, a Gaussian process regression model of EDPs was established to optimize the machining parameters, and excellent results were obtained at 16 V, 1 wt%, 57 mm/min. The results prove that G-ECDM is suitable for the high-quality manufacturing of honeycomb seal structures.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109325"},"PeriodicalIF":8.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217609","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 data-driven multiscale model SCA-DNN for 3D woven composites based on the damage evolution genome database 基于损伤演化基因组数据库的三维编织复合材料多尺度模型SCA-DNN

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-29 DOI: 10.1016/j.compositesa.2025.109318

Siyang Wu , Licheng Guo , Zhixing Li , Gang Liu , Ziyi Liu , Yunpeng Gao

{"title":"A data-driven multiscale model SCA-DNN for 3D woven composites based on the damage evolution genome database","authors":"Siyang Wu , Licheng Guo , Zhixing Li , Gang Liu , Ziyi Liu , Yunpeng Gao","doi":"10.1016/j.compositesa.2025.109318","DOIUrl":"10.1016/j.compositesa.2025.109318","url":null,"abstract":"<div><div>The current data-driven multiscale models are limited by the challenge of Neural Networks (NNs) in mapping the high-dimensional microscopic physical fields, making it impossible for them to reveal the microscopic damage evolution behavior. In the work, a data-driven multiscale model SCA-DNN based on the material damage evolution genome database is proposed for the <em>meso</em>-micro damage analysis of 3D woven composites (3DWCs) under the small strain and quasi-static loadings. In the model, the mesoscale problem is solved using the Self-consistent Clustering Analysis (SCA) method, and the microscale problem is solved in an equation-free manner using Deep Neural Network (DNN) models based on the material damage evolution genome database. The SCA method is utilized for reduced-order computation of the homogenized stress and the microscopic dimensionally acceptable damage evolution data of the microscopic representative volume elements (RVEs). 200,000 sets of data are included in the damage evolution genome database. The benchmark tests of 3DWC under four loading conditions are conducted. The SCA-DNN method demonstrates three capabilities: (1) predicting the stress–strain curves and the damage modes in agreement with the experiments, (2) predicting the damage evolution consistent with the SCA<sup>2</sup> solutions, (3) achieving an efficiency improvement of several times compared to the SCA<sup>2</sup> solutions.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109318"},"PeriodicalIF":8.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217611","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

Transmission electron microscopy study on correlations between microstructures and mechanical properties of cellulose nanofiber-reinforced polypropylene composites: effect of dispersion of maleic anhydride-grafted polypropylene as a compatibilizer 纤维素纳米纤维增强聚丙烯复合材料微观结构与力学性能相关性的透射电镜研究：马来酸酐接枝聚丙烯增容剂分散性的影响

IF 8.1 2区材料科学

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-09-27 DOI: 10.1016/j.compositesa.2025.109317

Naoto Kamiuchi , Yuta Hikima , Masanori Koshino , Keita Sakakibara

{"title":"Transmission electron microscopy study on correlations between microstructures and mechanical properties of cellulose nanofiber-reinforced polypropylene composites: effect of dispersion of maleic anhydride-grafted polypropylene as a compatibilizer","authors":"Naoto Kamiuchi , Yuta Hikima , Masanori Koshino , Keita Sakakibara","doi":"10.1016/j.compositesa.2025.109317","DOIUrl":"10.1016/j.compositesa.2025.109317","url":null,"abstract":"<div><div>The development of polymer composites with superior mechanical properties through the addition of fillers has been extensively explored. However, further improvements in mechanical performance require not only a high degree of filler dispersion but also effective interfacial control between the fillers and the polymer matrix, both of which remain significant challenges. In this study, we investigated the correlations between the microstructures and mechanical properties of cellulose nanofiber (CNF)-reinforced polypropylene (PP) composites containing maleic anhydride-grafted PP (MAPP) as a compatibilizer. We employed high-performance transmission electron microscopy (TEM) to analyze the morphology and dispersion of CNF and MAPP within the PP matrix under various processing conditions. It was revealed that, in PP/CNF/MAPP composites with lower tensile properties, MAPP formed aggregates that excessively coated certain CNF microfibrils, observed by TEM. In contrast, PP/CNF/MAPP composites exhibiting superior tensile properties contained well-dispersed CNF microfibrils with diameters of approximately 20 nm. Furthermore, the overall dispersion was significantly improved in the composites with high elongation at break. These results indicate that the mechanical performance of PP/CNF/MAPP composites can be significantly enhanced by achieving high CNF dispersion and an appropriate coating of CNFs with MAPP. This correlation between the microstructural features, such as the distribution of MAPP and its coverage on CNFs, and the mechanical properties was clarified for the first time through high-performance TEM analysis.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"200 ","pages":"Article 109317"},"PeriodicalIF":8.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263137","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