Composites Science and Technology最新文献_第2页

Cellulose nanofibers-enabled interfacial engineering for thermally conductive composites with superior mechanical durability 具有优异机械耐久性的导热复合材料的纤维素纳米纤维界面工程

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-23 DOI: 10.1016/j.compscitech.2025.111390

Wen-yan Wang , Yan-ji Yin , Yuan-chao Jiang , Rui Han , Min Nie

{"title":"Cellulose nanofibers-enabled interfacial engineering for thermally conductive composites with superior mechanical durability","authors":"Wen-yan Wang , Yan-ji Yin , Yuan-chao Jiang , Rui Han , Min Nie","doi":"10.1016/j.compscitech.2025.111390","DOIUrl":"10.1016/j.compscitech.2025.111390","url":null,"abstract":"<div><div>Cellulose nanofibers (CNFs), derived from renewable biomass, offer exceptional mechanical properties, a high aspect ratio, and abundant surface hydroxyl groups, making them highly attractive for polymer composite functionalization. In this study, CNFs are employed as both dispersing and reinforcing agents to address the dual challenges of filler aggregation and poor interfacial adhesion in nylon-based thermally conductive composites. By leveraging their strong hydrogen bonding capability, CNFs not only enable the uniform dispersion of boron nitride (BN) fillers in aqueous systems but also facilitate the construction of robust interfacial networks within the polymer matrix. Using a simple vacuum-assisted filtration and compression molding strategy, we fabricated laminated composites featuring highly aligned BN structures. This unique architecture promotes the formation of efficient thermal pathways, resulting in an in-plane thermal conductivity of 4.5 Wm<sup>−1</sup>K<sup>−1</sup> at 24.5 wt% BN—an 1857 % enhancement over pure nylon. Simultaneously, the CNF-induced interfacial reinforcement leads to excellent mechanical strength and fatigue resistance, with the composite retaining 92 % of its thermal conductivity and 85 % of its tensile strength after 100,000 bending cycles. These findings demonstrate the significant potential of CNF-assisted interfacial engineering for developing high-performance, thermoplastic-based thermal management materials suitable for flexible electronics and other advanced applications.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111390"},"PeriodicalIF":9.8,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155622","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

Necklace-structured FeCoNi@N-doped porous carbon nanofibers with strong magnetic coupling for high-performance microwave absorption 项链结构FeCoNi@N-doped多孔碳纳米纤维强磁耦合高性能微波吸收

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-19 DOI: 10.1016/j.compscitech.2025.111389

Shuai Liu , Qunfu Fan , Sijia Li , Yicang Huang , Yujie Chen , Hezhou Liu

{"title":"Necklace-structured FeCoNi@N-doped porous carbon nanofibers with strong magnetic coupling for high-performance microwave absorption","authors":"Shuai Liu , Qunfu Fan , Sijia Li , Yicang Huang , Yujie Chen , Hezhou Liu","doi":"10.1016/j.compscitech.2025.111389","DOIUrl":"10.1016/j.compscitech.2025.111389","url":null,"abstract":"<div><div>One-dimensional (1D) carbon-based magnetic fibers, characterized by rational multicomponent regulation and refined microstructure design, have emerged as promising candidates for high-performance electromagnetic wave (EMW) absorption. However, conventional 1D absorbers often suffer from densely aggregated and randomly oriented magnetic nanoparticles embedded in carbon matrices, which severely restricts magnetic coupling and consequently compromises magnetic loss capabilities. In this study, 1D necklace-structured nitrogen-doped porous carbon nanofibers embedded with FeCoNi nanoparticles (FeCoNi@NPCNFs) were successfully fabricated through a synergistic combination of hydrothermal synthesis, coaxial electrospinning, and controlled carbonization. By precisely regulating the spatial arrangement of magnetic nanoparticles, we achieved uniform dispersion and enhanced interparticle magnetic interactions within the NPCNFs, resulting in stronger magnetic anisotropy and elevated saturation magnetization. Impressively, the well-designed necklace-like FeCoNi@NPCNFs demonstrated a minimum reflection loss (RL<sub>min</sub>) of −52.36 dB at an ultrathin thickness of 1.46 mm, accompanied by a broad effective absorption bandwidth (EAB) of 5.52 GHz (11.70–17.22 GHz) measured at 1.66 mm, which significantly outperformed single-component FeCoNi@CNFs (RL<sub>min</sub> = −17.08 dB, EAB = 4.75 GHz). Such excellent EMW absorption performance can be attributed to the multiple magnetic coupling networks, as well as the multiple interface polarization among the biphasic FeCoNi alloys, N-doped carbon species, and the core-shell porous structure. This work proposes a groundbreaking design strategy for high-efficiency, ultra-thin magnetic fibrous EMW absorbers.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111389"},"PeriodicalIF":9.8,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155624","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

Composite structures spring back, modeling and sensitivity analysis 复合材料结构回弹、建模及灵敏度分析

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-19 DOI: 10.1016/j.compscitech.2025.111371

Quentin Maréchal , Mohamed Ichchou , Bruno Berthel , Michelle Salvia , Pascal Fossat , Olivier Bareille , Mohamed Chabchoub

{"title":"Composite structures spring back, modeling and sensitivity analysis","authors":"Quentin Maréchal , Mohamed Ichchou , Bruno Berthel , Michelle Salvia , Pascal Fossat , Olivier Bareille , Mohamed Chabchoub","doi":"10.1016/j.compscitech.2025.111371","DOIUrl":"10.1016/j.compscitech.2025.111371","url":null,"abstract":"<div><div>This paper deals with the modeling and sensitivity analysis of spring back for composite made structures. Spring back is a well-known phenomenon connected to the manufacturing of composite parts. It is a multi-physical process involving chemical, thermal, and mechanical issues. The prediction of the spring back is necessary in order to improve the quality of the production while respecting the manufacturing rules and tolerances. This paper specifically addresses a very important question. Indeed when the spring back is connected to a great number of parameters that need to be characterized accordingly, not all of them are of relevance for the prediction. The paper implements a sensitivity analysis process leading to a hierarchy of the needed parameters. Specifically for the composite tested in this paper, it is shown that the cure shrinkage coefficients are the most important parameters that need to be characterized precisely. This conclusion could help make relevant experimental characterization for the final target which is the relevant prediction of the spring back.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111371"},"PeriodicalIF":9.8,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155621","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

Dielectric breakdown behaviors and high-voltage damages of 3D braided carbon fiber/epoxy resin composites 三维编织碳纤维/环氧树脂复合材料的介电击穿行为及高压损伤

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-18 DOI: 10.1016/j.compscitech.2025.111388

Sheng Liu, Bohong Gu, Baozhong Sun

{"title":"Dielectric breakdown behaviors and high-voltage damages of 3D braided carbon fiber/epoxy resin composites","authors":"Sheng Liu, Bohong Gu, Baozhong Sun","doi":"10.1016/j.compscitech.2025.111388","DOIUrl":"10.1016/j.compscitech.2025.111388","url":null,"abstract":"<div><div>Dielectric breakdown of carbon fiber reinforced polymers is a key factor affecting the lightning protection design of engineering applications. This paper presented a coupled phase field-electrical-thermal model to reveal dielectric breakdown evolution and damage morphology of three-dimensional (3D) braided carbon fiber/epoxy composites. Finite element analysis (FEA) results show that dielectric breakdown occurs in the shortest conductive path along the electrical field direction. The braided yarns outside the shortest path also exhibit a breakdown tendency, which weakens the dielectric breakdown voltage. Testing results verify that dielectric breakdown voltage decreases from 3250 V to 337.5 V as the increasing carbon fiber yarns. Increasing the equivalent length of braided yarn along the loading direction decreases the dielectric breakdown voltage. Furthermore, a similar elliptical damage is observed at the surface braided knot from both the FEA model and the testing results. The verified model finds that both electric potential and current density distributions within the composite undergo abrupt transitions upon complete dielectric breakdown, which further reveals the dielectric breakdown progress.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111388"},"PeriodicalIF":9.8,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106933","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

Bio-inspired overlapping curl structures for toughening bio-based epoxy: A study on the fracture phenomena 生物基环氧树脂增韧的仿生重叠卷曲结构：断裂现象研究

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-16 DOI: 10.1016/j.compscitech.2025.111374

Zhiyuan Xu , Ran Tao , Kunal Masania , Sofia Teixeira de Freitas

{"title":"Bio-inspired overlapping curl structures for toughening bio-based epoxy: A study on the fracture phenomena","authors":"Zhiyuan Xu , Ran Tao , Kunal Masania , Sofia Teixeira de Freitas","doi":"10.1016/j.compscitech.2025.111374","DOIUrl":"10.1016/j.compscitech.2025.111374","url":null,"abstract":"<div><div>In this study, a 3D-printed biomimetic overlapping curl structure inspired by spider silk molecular structure, containing sacrificial bonds and hidden lengths, is studied as a toughening mechanism for a bio-based epoxy. Experimental results of the fracture phenomena of the overlapping curl-reinforced bio-based epoxy identify three toughening mechanisms triggered by the overlapping curl: (1) crack re-initiation, (2) overlapping curl bridging, and (3) epoxy ligament. First, the integrated overlapping curl creates a void within the epoxy matrix. As the crack tip reaches the end of this void, the crack re-initiates. Then, as the hidden length of overlapping curl unfolds, it leads to a bridging effect in resisting crack growth. In addition, for the smallest hidden length, an epoxy ligament is formed due to crack branching, significantly improving the energy release rate. The epoxy fracture energy release rate increased by 13%. The overall modest improvement is attributed to the large plastic dissipation energy of the epoxy and the relatively low overlapping curl load-capacity. However, when expanding the design space numerically, it was shown that as the failure load of the overlapping curl increases, the bridging effect increases progressively. The introduction of the bio-inspired overlapping curl structure into bio-based epoxy proves the concept of a toughening strategy for developing high-performance sustainable composite materials.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111374"},"PeriodicalIF":9.8,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155623","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

Compressive behaviour and micromechanical modelling of steel-reinforced resin under monotonic and cyclic loading 单调和循环加载下钢增强树脂的压缩行为和微观力学模型

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-15 DOI: 10.1016/j.compscitech.2025.111387

Angeliki Christoforidou , Abishek Baskar , Entela Kane , Marko Pavlovic

{"title":"Compressive behaviour and micromechanical modelling of steel-reinforced resin under monotonic and cyclic loading","authors":"Angeliki Christoforidou , Abishek Baskar , Entela Kane , Marko Pavlovic","doi":"10.1016/j.compscitech.2025.111387","DOIUrl":"10.1016/j.compscitech.2025.111387","url":null,"abstract":"<div><div>Steel-Reinforced Resin (SRR) is a particulate material originally developed as an injectant for anchoring applications. More recently, it has been proposed as a filler material for cavities embedding mechanical connectors in FRP–steel hybrid bridges. In this context, the compressive behaviour of SRR becomes critical due to the multiaxial stress states and fatigue demands at a joint scale. This paper presents a comprehensive experimental and numerical investigation of SRR under monotonic, incremental cyclic, and fatigue compressive loading in unconfined conditions. A custom triaxial setup is also used to evaluate pressure sensitivity and strength enhancement due to confinement under monotonic loading. In parallel, micromechanical finite element models are developed to simulate the interactions between the resin matrix and the steel balls at the microscale, incorporating interface damage, friction, and cohesive failure. The models reproduce the observed nonlinear behaviour and reveal distinct Poisson's ratio responses in tension and compression, offering deeper insight into the mechanisms governing stiffness degradation, strain softening, and plateau behaviour.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111387"},"PeriodicalIF":9.8,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119192","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

Topological design and experimental characterisation of continuous fibre-reinforced composite multiscale structures 连续纤维增强复合材料多尺度结构的拓扑设计与实验表征

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-15 DOI: 10.1016/j.compscitech.2025.111385

Guangkai Wei , Yuan Chen , Zhi Han , Jianning Yang , Minghui Zhang , Xiaoyu Cui , Kunkun Fu

{"title":"Topological design and experimental characterisation of continuous fibre-reinforced composite multiscale structures","authors":"Guangkai Wei , Yuan Chen , Zhi Han , Jianning Yang , Minghui Zhang , Xiaoyu Cui , Kunkun Fu","doi":"10.1016/j.compscitech.2025.111385","DOIUrl":"10.1016/j.compscitech.2025.111385","url":null,"abstract":"<div><div>In this study, a topology optimisation method is developed for designing a novel multiscale structure (MSS) with continuous fibre-reinforced composite materials (CFRCs) to achieve superior mechanical and functional performance. An interpolation function for the elastic matrix is established based on the discrete material optimisation (DMO) model to formulate the multiscale optimisation problem. The sensitivities of the objective function and constraints with respect to the design variables are derived to update macro and micro design variables, while the fibre orientations are determined by the principal stress directions. A Messerschmitt–Bölkow–Blohm (MBB) beam case was used for both parametric analysis and experiments, in which three structural configurations: mono-scale structure (MOS) with CFRC, MSS (without CFRC), and MSS with CFRC (MSC) were comparatively investigated. Experimental tests showed that the initial stiffness and peak force of MSC are ∼118.8 % and ∼65.7 % higher than those of MSS, respectively, demonstrating the significant positive effect of fibre reinforcement. Meanwhile, the residual toughness of MSC increases by ∼101.4 % as compared with MOS. Furthermore, frequency response function (FRF) tests and numerical modal analyses showed that the natural frequencies of MSC are generally higher (averagely ∼17.3 %) than those of MOS, indicating that the multiscale configuration enhances the dynamic mechanical performance. These findings have confirmed the effectiveness of the proposed method and provided a useful strategy for acquiring high-performance fibre-reinforced composite multiscale structures.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111385"},"PeriodicalIF":9.8,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106932","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

Dual-functional phase change hydrogels with boron nitride networks: High-Performance thermal interface materials for electronics cooling 具有氮化硼网络的双功能相变水凝胶：用于电子冷却的高性能热界面材料

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-13 DOI: 10.1016/j.compscitech.2025.111386

Luying Qin , Lingzhi Zhong , Fuyu Qin , Jun Wang , Tao Xu , Mengjie Song , Yi Yang , Weitao Shao

{"title":"Dual-functional phase change hydrogels with boron nitride networks: High-Performance thermal interface materials for electronics cooling","authors":"Luying Qin , Lingzhi Zhong , Fuyu Qin , Jun Wang , Tao Xu , Mengjie Song , Yi Yang , Weitao Shao","doi":"10.1016/j.compscitech.2025.111386","DOIUrl":"10.1016/j.compscitech.2025.111386","url":null,"abstract":"<div><div>With the rapid development of high-frequency 5G communication technologies, thermal management demands for electronics have surged, posing critical challenges for thermal interface materials (TIMs), including insufficient thermal conductivity, excessive interfacial thermal resistance, and phase-change material leakage. To address these, this study designed a boron nitride (BN)-reinforced composite phase-change hydrogel: Polyvinyl alcohol (PVA)/sodium alginate (SA)/BN/OP44. Thermal conduction pathways were built based on a 3D PVA/SA network via gradient BN filling, and OP44 was encapsulated within a PVA/SA cross-linked network, addressing the trade-off between heat transfer, storage, and stability. Results show the optimized composite with 14 BN mass fraction (wt%) BN (<em>P</em>S–O–B<sub>4</sub>) achieves a thermal conductivity of 1.16 W/(m·K) (346 % enhancement over pure OP44), low thermal resistance of 27.63 (°C cm<sup>2</sup>)/W, and mass retention >96.5 % after 8 thermal cycles. DSC confirms a melting range (39.1–40 °C) matching chip conditions, with latent heat retention >97.5 %. Thermal simulation shows the material delays temperature rise via phase-change and enables steady dissipation via the BN network. This work provides a novel paradigm for designing TIMs with high conduction, low resistance, and stability, advancing practical dynamic thermal management. The material demonstrates commercialization potential for high-power 5G devices.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111386"},"PeriodicalIF":9.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119193","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 parametric study on the mesostructure design and stiffness of tow-based discontinuous composites using a voxel finite element model 基于体素的非连续复合材料细观结构设计和刚度参数化研究

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-12 DOI: 10.1016/j.compscitech.2025.111369

Luis Gulfo , Ioannis Katsivalis , Leif E. Asp , Martin Fagerström

{"title":"A parametric study on the mesostructure design and stiffness of tow-based discontinuous composites using a voxel finite element model","authors":"Luis Gulfo , Ioannis Katsivalis , Leif E. Asp , Martin Fagerström","doi":"10.1016/j.compscitech.2025.111369","DOIUrl":"10.1016/j.compscitech.2025.111369","url":null,"abstract":"<div><div>Tow-Based Discontinuous Composites (TBDCs) are manufactured by compression moulding of randomly deposited carbon fibre tows. As such, a quasi-isotropic response with high stiffness and strength can be achieved, while reducing waste, thus competing with laminated composites. Moreover, novel TBDCs with ultra-thin tows (0.02 mm) have expanded the design space and opened opportunities for thin-walled structures. However, complex 3D mesostructural parameters have been demonstrated to impact their stiffness, such as tow/plate morphology, resin pocket content, tow waviness, and tow orientation distributions, which remain a challenge for their modelling and design. The present work exploits a novel voxel-based finite element mesostructure generator for TBDCs developed and validated by the authors to explore the significance of mesostructural design modifications on their stiffness. A parametric study over an extended design space including baselines of thick, thin, and ultra-thin tow systems, is conducted to investigate the effect of important parameters such as the tow moduli (up to ultra-high modulus), tow and plate dimensions (with attention to thin plates), and preferred in-plane fibre orientation distributions. Also, the significance of the numerical model is compared with short-fibre models and equivalent laminates. The results compare their sensitivity for each TBDC material system, showing opportunities for optimisation. Finally, design constraints are identified in terms of the stiffness knockdown, quasi-isotropic behaviour, statistical variability of the elastic properties, and critical minimum plate dimensions.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111369"},"PeriodicalIF":9.8,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119191","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

In-plane vs. out-of-plane auxetic architecture: Uncoupling tensile strength and indentation resistance of layered composite structures 面内与面外辅助结构：层状复合材料结构的解耦抗拉强度和抗压痕性能

IF 9.8 1区材料科学

Composites Science and Technology Pub Date : 2025-09-10 DOI: 10.1016/j.compscitech.2025.111382

Amirreza Tarafdar , Wenhua Lin , Andrea J. Hoe, Yeqing Wang

{"title":"In-plane vs. out-of-plane auxetic architecture: Uncoupling tensile strength and indentation resistance of layered composite structures","authors":"Amirreza Tarafdar , Wenhua Lin , Andrea J. Hoe, Yeqing Wang","doi":"10.1016/j.compscitech.2025.111382","DOIUrl":"10.1016/j.compscitech.2025.111382","url":null,"abstract":"<div><div>Auxetic layered composites offer exceptional resistance to indentation and impact, but their application is often hindered by a critical trade-off in tensile strength. This study first systematically quantifies this compromise, demonstrating through integrated experimental and theoretical analysis that an in-plane auxetic design sacrifices over half its ultimate tensile strength compared to a non-auxetic counterpart. This weakness is confirmed to originate from transverse strain amplification that promotes premature failure. The central contribution of this work, however, is the resolution of this long-standing dilemma. We present the design and validation of an out-of-plane auxetic architecture that eliminates the tensile penalty, achieving a comparable tensile strength compared to its stiffness-matched, non-auxetic counterpart. Furthermore, this tensile-friendly design exhibits a remarkable enhancement in indentation resistance. Under quasi-static indentation, it sustains higher loads and shows over 40 % less permanent indentation. The micro-CT analysis reveals the energy absorption mechanism. The auxetic effect mitigates damage by promoting widespread, energy dissipating internal delamination. Ultimately, this research proves that the tensile trade-off is not an intrinsic gap but a solvable design challenge. It provides a clear pathway toward multifunctional composites that are simultaneously tensile reliable and indentation resistant, significantly advancing their potential for demanding structural applications.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"272 ","pages":"Article 111382"},"PeriodicalIF":9.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047522","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