Composites Part A: Applied Science and Manufacturing最新文献

{"title":"Synergistic Improvement of Mechanical, Creep, and Dimensional Stability in Ultra-Highly Filled Wood Fiber/Polyethylene Composites Using Multimodal Alloy Matrices","authors":"Junjie Xu ,&nbsp;Xiaolong Hao ,&nbsp;Shangkun Huang ,&nbsp;Chuanfu Chen ,&nbsp;Qi Fan ,&nbsp;Lichao Sun ,&nbsp;Rongxian Ou ,&nbsp;Qingwen Wang","doi":"10.1016/j.compositesa.2025.108830","DOIUrl":"10.1016/j.compositesa.2025.108830","url":null,"abstract":"<div><div>Enhancing the mechanical properties and dimensional stability of ultra-highly filled wood-plastic composites (UH-WPCs) presents significant challenges. This study developed UH-WPCs with 70–90 wt% loading using six binary alloy matrices with multimodal and unimodal distributions. FTIR spectroscopy and thermogravimetric analysis revealed an average MAPE esterification rate of 11.9% at 80 wt% loading. Density, morphology, and dynamic mechanical analysis revealed that multimodal high molecular weight alloys significantly improved uniformity and interfacial adhesion compared to unimodal alloys. This increased tensile, flexural, and impact strengths by 30.1%, 22.7%, and 61.8%, respectively, while reducing thermal expansion, creep, and water absorption by 14.0%, 17.1%, and 13.1%. The low molecular weight fraction of multimodal HDPE facilitated miscibility with MAPE, promoted esterification, and minimized fiber damage, while the high molecular weight fraction enhanced composite integrity and cohesiveness. Notably, chain entanglement within the alloy was more critical than esterification rate in improving the mechanical and dimensional stability of UH-WPCs.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108830"},"PeriodicalIF":8.1,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520271","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":"Developing electrothermal energy storage system for building heating by using stainless steel wires reinforced ultra-high performance concrete","authors":"Shuoxuan Ding ,&nbsp;Xinyue Wang ,&nbsp;Ashraf Ashour ,&nbsp;Danna Wang ,&nbsp;Tong Sun ,&nbsp;Baoguo Han","doi":"10.1016/j.compositesa.2025.108832","DOIUrl":"10.1016/j.compositesa.2025.108832","url":null,"abstract":"<div><div>Stainless steel wires (SSWs) with microscale diameter and high aspect ratio can form extensive electrically and thermally conductive networks within concrete at low contents. Combined with their high mechanical properties and corrosion resistance, SSWs enable concrete with self-heating capability and excellent thermal conductivity, as well as ultra-high mechanical properties and durability. Such SSWs enabled self-heating ultra-high performance concrete (SES-UHPC) can achieve active temperature control and on-site utilization of intermittent renewable energies, beneficial to reducing energy consumption and carbon emissions from building heating. Therefore, this study prepared SES-UHPC slabs embedded with Al₂O₃ tubes encapsulating either water or phase change material (PCM). The content levels of SSWs incorporated in test specimens were 0.5 vol%, 1.0 vol%, and 1.5 vol%. The electrical, self-heating, and thermal storage properties as well as the thermal storing-releasing model of these slabs were investigated. Furthermore, their building heating performances were verified in a simulated room. The results indicated that the SES-UHPC slab with 1.5 vol% of SSWs has an electrical conductivity as low as 2.0 Ω·cm, unaffected by temperature and thermal cycling. The slab with 1.5 vol% of SSWs can be heated from 20 °C to 80 °C with a power of 65 W in 6.8 h, and it continuously provides a total of 90.5 kJ heat supply for 14.4 h. The proposed thermal storing-releasing model based on Newton’s law of cooling can accurately describe the temperature of the slabs tested. In a simulated room, the SES-UHPC slabs with water/PCM kept the indoor temperature above 15 °C for 14.4 h to 10.3 h with outdoor temperatures of −5°C to −3°C and wind speed of up to 5.7 m/s.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108832"},"PeriodicalIF":8.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529200","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":"Tailoring interlaminar shear and mode-I fracture behavior in fiber-composites via soft self-healing thermoplastic inclusions","authors":"Jack S. Turicek ,&nbsp;Vikita Kamala ,&nbsp;Kalyana B. Nakshatrala ,&nbsp;Ghadir Haikal ,&nbsp;Jason F. Patrick","doi":"10.1016/j.compositesa.2025.108803","DOIUrl":"10.1016/j.compositesa.2025.108803","url":null,"abstract":"<div><div>The hierarchical microstructure of fiber-reinforced composites (FRC) enables lightweight materials with exceptional mechanical properties. However, their layered architecture is prone to interfacial damage, notably delamination. An effective strategy to mitigate delamination is by integrating thermoplastic interlayers, which not only enhance FRC resistance to interfacial fracture, but also enable self-repair of cracks through thermal mending. In this study, we demonstrate for the first time, repeated <em>in situ</em> self-healing of FRC laminates under both mode-I fracture (via the double cantilever beam) and 3-point flexure (employing short-beam shear). Remarkably, we achieve nearly complete restoration over ten consecutive healing cycles from thermal remending of 3D-printed poly(ethylene-co-methacrylic acid) (EMAA) interlayer inclusions. To understand the mechanical effects of such soft inclusions, we conduct a comprehensive experimental and numerical investigation. Our research findings reveal: (i) Markedly different strain states in short-beam shear with soft inclusions compared to FRC without. (ii) The necessity of incorporating contact algorithms for accurate finite element (FE) simulation of local stress/strain fields and global structural responses. (iii) Adjustments in the density and layer placement of printed EMAA domains can tailor both interlaminar shear strength (ILSS) and mode-I fracture resistance (<span><math><msub><mrow><mi>G</mi></mrow><mrow><mi>IC</mi></mrow></msub></math></span>). This research offers newfound insights into realizing self-healing in actual structures, reliable and efficient simulation strategies for modelers, and advancements towards more modern design motifs and suitable materials testing protocols.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"194 ","pages":"Article 108803"},"PeriodicalIF":8.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface modification of polyamide by SWCNTs for application in SLS 3D printing","authors":"Shiyanova Kseniya ,&nbsp;Torkunov Mikhail ,&nbsp;Gudkov Maksim ,&nbsp;Gulin Alexander ,&nbsp;Knyazeva Alina ,&nbsp;Ryvkina Natalia ,&nbsp;Khashirov Azamat ,&nbsp;Rabchinskii Maxim ,&nbsp;Chmutin Igor ,&nbsp;Melnikov Valery","doi":"10.1016/j.compositesa.2025.108829","DOIUrl":"10.1016/j.compositesa.2025.108829","url":null,"abstract":"<div><div>The development of approaches to the creation of new materials with functional properties is one of the main directions for progress of their application in various fields. This work proposes an approach to surface modification of polyamide-12 (PA) powder with single-walled carbon nanotubes (SWCNTs) to impart electrical conductivity and create a material suitable for selective laser sintering (SLS) 3D printing. A previously unknown transition in the conductivity character change with increasing SWCNTs content on the surface of polymer powder particles, demonstrating a change in the state of the electrically conductive network from quasi-planar to spatial, was discovered. The main parameters of the resulting powders were also studied, which determine the possibility of their use for the SLS method: flowability, compactability, transmittance and morphology. As a result, a simple method of new materials obtaining based on PA/SWCNTs with high electrical conductivity was proposed, which are suitable for application in 3D printing.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108829"},"PeriodicalIF":8.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526680","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":"Analytical prediction of the thermal overheating in curing thick layers of fibre-reinforced thermosets","authors":"Jordi Farjas ,&nbsp;Daniel Sanchez-Rodriguez ,&nbsp;Sihem Zaidi ,&nbsp;Didina-Ramona-Casandra Cârstea ,&nbsp;Ahmed Mohamed Saleh Abd Elfatah ,&nbsp;Andrei Rotaru ,&nbsp;Josep Costa","doi":"10.1016/j.compositesa.2025.108815","DOIUrl":"10.1016/j.compositesa.2025.108815","url":null,"abstract":"<div><div>A recurring problem when curing thick specimen carbon-fibre-reinforced polymers is the formation of thermal gradients. Thermal gradients can lead to heterogeneous properties, overcuring and, in some cases, matrix degradation. To address this problem, we have developed a general-purpose analytical solution that allows one to predict the maximum temperature difference within a specimen when the curing reaction takes place under isothermal conditions. The analytical solution is specifically tailored to deal with standard conditions in the manufacture of composites and can be applied to different resins and prepregs. In addition, it allows one to determine the conditions for when a thermal runaway will occur. The analytical solution was validated by comparing the analytical predictions with numerical and experimental results.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108815"},"PeriodicalIF":8.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526681","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 design method based on thermal barrier performance evaluation coefficients of micro-laminated ceramic cutting tool materials for clean dry machining","authors":"Chongzhen Du ,&nbsp;Chuanzhen Huang ,&nbsp;Hanlian Liu ,&nbsp;Xinyao Cui ,&nbsp;Shijie Li ,&nbsp;Dun Liu ,&nbsp;Zhen Wang ,&nbsp;Longhua Xu ,&nbsp;Shuiquan Huang","doi":"10.1016/j.compositesa.2025.108819","DOIUrl":"10.1016/j.compositesa.2025.108819","url":null,"abstract":"<div><div>The development of ceramic cutting tools usually focused on the optimization of mechanical properties, while ignoring the heat problem during cutting. Aiming at the problem of reducing tool life caused by thermal wear in dry machining, a design method of micro-laminated ceramic tool with thermal barrier function was proposed. Thermal barrier performance evaluation coefficients <span><math><mrow><msub><mi>Y</mi><mrow><mi>heat</mi></mrow></msub></mrow></math></span> and <span><math><mrow><msub><mi>Y</mi><mrow><mi>temp</mi></mrow></msub></mrow></math></span>, which represent the change of cutting temperature and heat flux per unit thickness, were established for micro-laminated ceramic tools. The effects of material properties and thermal barrier thickness on the thermal barrier performance of cutting tools were characterized. A micro-laminated ceramic tool with good mechanical properties and thermal barrier function was prepared by coupling the surface layer of micro-nano composite thermal barrier with a ductile metal toughening matrix layer. <span><math><mrow><msub><mi>Y</mi><mrow><mi>heat</mi></mrow></msub></mrow></math></span> and <span><math><mrow><msub><mi>Y</mi><mrow><mi>temp</mi></mrow></msub></mrow></math></span> indicated that the thermal barrier performance deteriorated with time. In the late turning process, the thermal barrier performance mainly came from the hindering effect on heat flux and the influence on temperature distribution. Along the tool-chip contact length, the thermal barrier performance was better at the location away from the main cutting edge. The clean dry turning test showed that compared with SG4, the AWZT with thermal barrier function suppressed thermal wear, improved machining surface quality and prolonged tool life by 56.8%. The development of thermal barrier functional micro-laminated ceramic cutting tools provides a new approach for the design of clean dry processing ceramic composite cutting tool materials, and has important guiding significance for the development of high-performance cutting tools.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108819"},"PeriodicalIF":8.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529198","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":"Mechanical and electrical conductivity of Cu-10Ti3SiC2/Cu-3GFs@Cu composites by heterogeneous laminated micro-nanostructure design","authors":"Mu Wang ,&nbsp;Xiaosong Jiang ,&nbsp;Hongliang Sun ,&nbsp;Rui Shu ,&nbsp;Min Zou ,&nbsp;Yu Jiao ,&nbsp;Zixuan Wu ,&nbsp;Liu Yang","doi":"10.1016/j.compositesa.2025.108828","DOIUrl":"10.1016/j.compositesa.2025.108828","url":null,"abstract":"<div><div>A heterogeneous laminated structure (HLS) design, complemented with an interlayer ordered structure (IOS), combined with heterogeneous powder gradient stacking (HPGS) and flake powder metallurgy (FPM) processes, results in the construction of a heterogeneous laminated micro-nanostructure (HLMS) with HLS and IOS of Cu/Ti₃SiC₂/C composites. Systematic investigation was conducted to explore the sources and contributions to improve the strength and resistance of the composites. Under applied loads, the HLS and IOS work synergistically. The refined grain orientation within the HLS reinforces the non-uniform deformation at interfaces, facilitating the interaction between strain gradients and geometrically necessary dislocations (GND), thereby enhancing energy absorption or dissipation during fracture. Meanwhile, the highly aligned reinforcement particles (RP) in the IOS help coordinate plastic deformations, reduce local stress concentrations, and optimize electron transport pathways to improve their performance. Results corroborate the assertion that this innovative HLMS structure design strategy is a highly valuable approach for the development of hetero-structured materials.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108828"},"PeriodicalIF":8.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529196","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 tensile properties of 3D-printed lattice composites: Experimental and machine learning-based predictive modelling","authors":"Itkankhya Mahapatra ,&nbsp;Niranjan Chikkanna ,&nbsp;Kumar Shanmugam ,&nbsp;Jayaganthan Rengaswamy ,&nbsp;Velmurugan Ramachandran","doi":"10.1016/j.compositesa.2025.108823","DOIUrl":"10.1016/j.compositesa.2025.108823","url":null,"abstract":"<div><div>Triply periodic minimal surface (TPMS)<!--> <!-->lattices, known for their high surface area density, significantly influence mechanical properties but have not been fully explored under tensile loads. Evaluating different material and lattice design combinations through computational or experimental methods can be time-intensive. This study introduces a framework for quickly estimating key tensile properties in 3D-printed gyroid and diamond lattices based on structure weight, cell size, and relative density. Specimens were 3D-printed using acrylonitrile butadiene styrene (ABS) and short Kevlar fiber-reinforced ABS through a filament-based extrusion process, showing improved mechanical performance with dual-material combinations. A detailed comparison of homogeneous and composite sandwich specimens along with failure analysis of different geometries revealed notable enhancements in tensile properties. Furthermore, a random forest machine learning model was trained on experimental data, providing a simple yet accurate tool for predicting mechanical properties. This model supports the expansion of machine learning-driven approaches in the design of lattice-structures.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108823"},"PeriodicalIF":8.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578128","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":"Analytical modeling for four-point asymmetric end-notched flexure delamination test of composite laminates considering interlaminar friction","authors":"Kaixin Xia ,&nbsp;Fengrui Liu ,&nbsp;Yu Gong ,&nbsp;Xinxin Qi ,&nbsp;Linjuan Wang ,&nbsp;Libin Zhao ,&nbsp;Ning Hu","doi":"10.1016/j.compositesa.2025.108824","DOIUrl":"10.1016/j.compositesa.2025.108824","url":null,"abstract":"<div><div>The four-point asymmetric end-notched flexure (4AENF) test under shear loading often involves a mode I component, making it a representative mixed-mode I/II delamination problem. The 4AENF configuration reflects the general delamination behavior in defective laminates, emphasizing the need to characterize interlaminar fracture toughness. Despite its importance, research on 4AENF is limited, and existing models overlook interlaminar friction. This study develops a theoretical model based on Timoshenko beam theory and a two-point friction assumption, enabling analytical calculation of total strain energy release rate (SERR) for any 4AENF configuration, explicitly considering interlaminar friction. Experimental tests and finite element method (FEM) analyses validate the model, using unidirectional (UD) symmetric, UD asymmetric, and multidirectional (MD) asymmetric laminates. Theoretical predictions, experimental results, and FEM analyses are compared, confirming the model’s applicability and highlighting the effects of interlaminar friction.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108824"},"PeriodicalIF":8.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520270","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":"Variability in sliding behaviour of carbon fibre tows investigated by Discrete Element Method and experiments","authors":"Olga Smerdova,&nbsp;Chenghao Chai,&nbsp;Ismail Kolimi,&nbsp;Noël Brunetière","doi":"10.1016/j.compositesa.2025.108818","DOIUrl":"10.1016/j.compositesa.2025.108818","url":null,"abstract":"","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"193 ","pages":"Article 108818"},"PeriodicalIF":8.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}