Composites Part B: Engineering最新文献

{"title":"Efficient modulation of vanadium spin state via poly(3,4-ethylenedioxythiophene) functionalization for enhanced zinc ion storage","authors":"Zhen Tian ,&nbsp;Zhichao Zheng ,&nbsp;Huijun Li ,&nbsp;Yang Yang ,&nbsp;Yanjun Chen ,&nbsp;Yanzhong Wang ,&nbsp;Rui Zhou ,&nbsp;Zhenxin Zhao ,&nbsp;Li Guo ,&nbsp;Xiaomin Wang","doi":"10.1016/j.compositesb.2025.113044","DOIUrl":"10.1016/j.compositesb.2025.113044","url":null,"abstract":"<div><div>Layered VOPO₄·2H₂O (VOP) cathodes exhibit promising advantages for aqueous zinc-ion capacitors (ZICs) but hindered by inferior structural stability and poor bulk conductivity. Herein, a PEDOT-VOPO₄·2H₂O (PEDOT-VOP) cathode has been developed, achieving an enlarged interlayer spacing of 9.7 Å (compared to 7.4 Å for single VOP) through effective polymer intercalation. The π-conjugated chain of PEDOT forms a delocalized hybrid state with the orbitals of vanadium, introducing asymmetrical spin polarization and thereby enhancing the intrinsic electronic conductivity of VOP. Furthermore, the PEDOT insertion modifies the local crystal field symmetry of VOP, resulting in the reorganization of orbital splitting energy levels. This significantly modifies the bond strength between V and O by altering the original [VO₆] octahedral structure into a distorted VO₅ pyramidal structure, which in turn enhances structural stability. Consequently, the PEDOT-VOP cathode demonstrates a specific capacity of 512.7 mAh g⁻¹ at a wide potential window of 1.5 V in aqueous electrolyte under a current density of 1 A g⁻¹. In-situ Raman and XRD analysis confirm the excellent reversibility and long-term stability of the cathode, with 88 % of its initial capacity retained over 10,000 cycles. This study provides profound insights into the development of high-voltage, stable, and high-capacity cathode materials for ZICs by modulating the electronic structure through enhanced spin polarization of d-orbitals.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113044"},"PeriodicalIF":14.2,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109369","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}

{"title":"Automated classification of subsurface impact damage in thermoplastic composites using depth-resolved terahertz imaging and deep learning","authors":"Dicky J. Silitonga ,&nbsp;Pascal Pomarède ,&nbsp;Niyem M. Bawana ,&nbsp;Haolian Shi ,&nbsp;Nico F. Declercq ,&nbsp;D.S. Citrin ,&nbsp;Fodil Meraghni ,&nbsp;Alexandre Locquet","doi":"10.1016/j.compositesb.2025.113033","DOIUrl":"10.1016/j.compositesb.2025.113033","url":null,"abstract":"<div><div>Reliable detection of barely visible impact damage is critical to ensure the structural integrity of composite components in service, particularly in safety-critical applications such as pressure vessels and transportation systems. This study presents a solution for detecting such damage in woven glass fiber-reinforced thermoplastic composites using terahertz (THz) time-of-flight tomography and convolutional neural networks. THz provides non-contact, non-ionizing, high-axial-resolution imaging of subsurface and back-surface damage, addressing key limitations of surface-based inspection methods. While THz imaging alone may not always permit conclusive damage identification, we bridge this gap by training neural network classifiers on depth-resolved THz B-scan images using ground truth from co-located X-ray micro-computed tomography. Among several pretrained architectures tested via transfer learning, DenseNet-121 exhibits the highest accuracy. The model remains robust even when trained on truncated B-scans excluding surface indentation features, confirming its ability to detect structural anomalies located internally or on the back surface. This is particularly relevant for applications where back-side access is not feasible. Experimental validation is performed on impacted glass-fiber-reinforced thermoplastic coupons prepared in accordance with ASTM D7136, with damage severity quantified through force–displacement data and micro-tomographic analysis. Labeling for supervised learning conforms to acceptance criteria from industrial standards for composite pressure vessels (ASME BPVC Section X, CGA C-6.2), ensuring regulatory alignment and enabling deployment in quality control workflows. The proposed method minimizes the need for expert interpretation or secondary validation and offers direct applicability to in-service inspection and manufacturing quality control.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113033"},"PeriodicalIF":14.2,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109368","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}

{"title":"Engineering of electrospun lead-free PVDF/Carbon Nanofiber-ZnO nanocomposites for enhanced piezoelectric energy harvesting and wearable sensing applications","authors":"Divya Chauhan ,&nbsp;Arpit Kumar Singh ,&nbsp;Sabatini Tyagi ,&nbsp;Palani Iyamperumal Anand ,&nbsp;Seeram Ramakrishna ,&nbsp;Manish Kumar Srivastava","doi":"10.1016/j.compositesb.2025.113039","DOIUrl":"10.1016/j.compositesb.2025.113039","url":null,"abstract":"<div><div>Poly (vinylidene fluoride) (PVDF) is a promising lead-free piezoelectric polymer; however, its low β-phase fraction and limited charge transport hinder device performance. Here, we report a dual-filler strategy that synergistically integrates surface-functionalized carbon nanofibers (CNFs) and zinc oxide (ZnO) nanorods into electrospun PVDF fibers to simultaneously enhance β-phase nucleation, dipole alignment, and charge mobility. CNFs, at an optimized loading of 0.1 wt%, form conductive stress-transfer networks, while ZnO nanorods (1.5 wt%) with polar wurtzite facets act as efficient nucleating agents, promoting α→β phase transformation through localized electrostatic fields. Systematic variation of filler concentrations revealed that the 0.1 % CNF +1.5 % ZnO composition achieved the highest β-phase content (85.6 %) and piezoelectric coefficient (d₃₃ = 36 pC/N), yielding an open-circuit voltage of 80 V and power density of 20 mW/cm³ under periodic tapping. The composite nanogenerator demonstrated stable, high-sensitivity performance in wearable sensing applications, including human joint motion monitoring. This work addresses the longstanding challenge of balancing mechanical flexibility with high piezoelectric activity in PVDF-based nanogenerators and establishes a scalable, lead-free approach for high-performance energy harvesting and self-powered sensing devices.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113039"},"PeriodicalIF":14.2,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120082","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}

{"title":"Synergistic enhancement of thermal stability and dielectric performance of BT resin composites via difunctional phthalonitrile monomers for high-frequency PCB substrates","authors":"Xiaoqing Liu ,&nbsp;Wendong Chen ,&nbsp;Xiaofang Feng ,&nbsp;Hubing Xiang ,&nbsp;Lifen Tong ,&nbsp;Shuning Liu ,&nbsp;Xiaobo Liu","doi":"10.1016/j.compositesb.2025.113042","DOIUrl":"10.1016/j.compositesb.2025.113042","url":null,"abstract":"<div><div>The escalating demands of high-frequency communication necessitate printed circuit boards (PCB) with exceptional thermal stability and dielectric properties. This study introduces a novel strategy by incorporating two distinct phthalonitrile monomers into a bismaleimide-triazine (BT) resin matrix. At low temperatures, aminophthalonitrile initiates the ring-opening of benzoxazine units, generating catalytically active phenolic Mannich bridges. This reaction strategically modulates curing kinetics, resulting in a dielectrically stable, highly crosslinked network. Phthalonitrile-based clad copper laminates (PNCCLs), reinforced with silicon dioxide filler, were subsequently fabricated using a tailored molding process. The effects of post-curing temperature on heat resistance, mechanical properties, and dielectric performance were systematically investigated. The resulting PNCCLs exhibit a low coefficient of thermal expansion (19 ppm from 50 to 300 °C) and a glass transition temperature exceeding 300 °C. Crucially, the laminates demonstrate exceptional dielectric stability, and the dielectric constant (ε) and loss (tanδ) remain remarkably stable at 3.6 and 0.008 (10 GHz), respectively, across a wide operating temperature range from −50 to 150 °C. Extended into the terahertz regime, ε and tanδ values reach 2.6 and 0.15 at 3 THz. Detailed analysis correlates these frequency-dependent behaviors with molecular polarity and backbone rigidity, elucidating the dominant loss mechanisms in the THz domain. This integrated resin design and processing approach provides a scalable pathway for next-generation, high-performance PCBs for advanced communication systems.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113042"},"PeriodicalIF":14.2,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109365","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}

{"title":"Electrospun nanofiber reinforced ceramic-polymer composite solid electrolyte membrane for sodium batteries","authors":"Hao-Yu Liu ,&nbsp;Ai-Yin Wang ,&nbsp;Yen-Lin Chen ,&nbsp;Shu-Yu Chen ,&nbsp;Han-Yi Chen","doi":"10.1016/j.compositesb.2025.113041","DOIUrl":"10.1016/j.compositesb.2025.113041","url":null,"abstract":"<div><div>This paper presents a novel ceramic-polymer composite solid electrolyte (CSE) for sodium metal batteries. The CSE was fabricated by infusing a poly(ethylene oxide) (PEO)-based electrolyte containing PEO, NaClO₄, succinonitrile (SN), Na_3.2Ca_0.1Zr_1.9Si₂PO₁₂ (NCZSP), and Pluronic F127 (PF127) into an electrospun nanofibrous structure composed of poly(vinylidene fluoride-<em>co</em>-hexafluoropropylene) (PVDF-HFP), NCZSP, and poly(sodium 4-styrenesulfonate) (PSSNa). Effective dispersion of NCZSP in both the PEO and PVDF-HFP systems was achieved by incorporating dispersants PF127 and PSSNa. In this design, the PEO/NaClO₄/SN/NCZSP/PF127 blend established a continuous and highly ionic conductive pathway within the high-strength structure of the electrospun PVDF-HFP/NCZSP/PSSNa, resulting in improved ionic conductivity without compromising the mechanical strength. After optimization, the solid electrolyte, named SC-30/ES-30, possesses high ionic conductivity (3.02 × 10⁻⁴ S cm⁻¹), good mechanical strength (6.49 MPa), a wide electrochemical stability window (6 V vs. Na/Na⁺), high sodium-ion transference number (0.62), and exceptional stability during sodium stripping and plating. In the battery performance evaluation, the solid-state sodium metal battery Na₃V₂(PO₄)₃@C|SC-30/ES-30|Na exhibited a high capacity of 105.8 mAh g⁻¹ and remarkable cyclic retention of 80.5 % after 500 cycles under a current density of 0.2C. These findings suggest that SC-30/ES-30 has great potential for practical applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113041"},"PeriodicalIF":14.2,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218209","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}

{"title":"Ballistic impact response of Elium® thermoplastic composites reinforced with high-performance fibres in monolithic and hybrid configurations","authors":"Aswani Kumar Bandaru ,&nbsp;Hemant Chouhan ,&nbsp;Hong Ma ,&nbsp;Dinesh Kumar Kothandan ,&nbsp;Ronan M. O'Higgins","doi":"10.1016/j.compositesb.2025.113030","DOIUrl":"10.1016/j.compositesb.2025.113030","url":null,"abstract":"<div><div>This study investigates the ballistic impact response of composite armour panels manufactured with infusible Methyl Methacrylate, thermoplastic (Elium®) resin, reinforced with three distinct plain weave fibre systems: carbon, Kevlar, and Ultra-High Molecular Weight Polyethylene (UHMWPE). Both monolithic and hybrid panel configurations were assessed. The primary aim is to evaluate the feasibility of Elium®-based composite armour for ballistic protection and to determine the influence of fibre hybridisation on impact resistance and damage characteristics. Composite panels were manufactured using vacuum-assisted resin transfer moulding, incorporating 16 layers of plain-woven carbon, Kevlar, UHMWPE, and their 8-layered hybrid combinations (carbon/Kevlar, Kevlar/carbon, carbon/UHMWPE, and UHMWPE/carbon). Ballistic testing employed .38 SPL lead round nose projectiles (300 ± 15 m/s) and .357 MAG semi-jacketed soft point flat projectiles (550 ± 15 m/s). Ballistic performance was evaluated by analysing damage patterns, back face deformation, energy absorption, and residual velocity. X-ray imaging provided an internal damage assessment. Kevlar and UHMWPE-based panels successfully stopped the .38 projectile with minimal back face deformation. In contrast, carbon-reinforced panels exhibited significant residual velocities and did not prevent projectile penetration in the monolithic condition. All single-fibre-reinforced panels were perforated by the .357 projectile, though to varying extents. Among the hybrid systems, Kevlar-backed carbon-facing panels demonstrated superior ballistic resistance compared to the carbon-backed Kevlar-facing configuration. The carbon/UHMWPE hybrid exhibited relatively poor performance, as only one .38 projectile was successfully stopped. For the carbon-backed UHMWPE-front hybrid panel, all projectiles perforated the panel. Kevlar and Kevlar-backed hybrid panels achieved the highest energy absorption and lowest residual velocities, indicating Kevlar's superior energy dissipation properties in hybrid armour systems. These results demonstrate the potential of Elium® resin-based composite panels for advanced ballistic protection and highlight the critical role of fibre hybridisation in improving the ballistic performance of composite armour.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113030"},"PeriodicalIF":14.2,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120081","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}

{"title":"Multiple crosslinking-Stretch-induced multi-level orientation structure BNNS/Ca-SA/D films with high thermal conductive performance","authors":"Zhengyang Miao ,&nbsp;Guangzheng Zhu ,&nbsp;Lei Yang ,&nbsp;Peng Ding ,&nbsp;Fang Jiang","doi":"10.1016/j.compositesb.2025.113032","DOIUrl":"10.1016/j.compositesb.2025.113032","url":null,"abstract":"<div><div>Polymer-based thermally conductive composites have garnered significant attention in recent years due to their critical applications in areas of national strategic importance. Nevertheless, the inherently limited thermal conductivity and mechanical properties of polymers pose challenges to their practical application. Recent research indicates that employing exogenous methods and facilitating molecular-level interactions between fillers and cross-linkers are effective strategies to overcome these limitations. In this study, with the aid of the ionic effect during the sol-gel phase transition of aqueous sodium alginate molecules in the presence of divalent cations and biaxial stretching, combined with the hydrogen bonding between boron nitride nanosheets (BNNS) with excellent thermal conductivity and sodium alginate (SA) molecules, the BNNS-calcium alginate (BNNS/Ca-SA/D) films were constructed by the strategy of gel reconstruction, rehydration, evaporation-assisted self-assembly and biaxial stretching. By designing anisotropic structures with closely aligned interconnected BNNS (Herman orientation parameter as high as 0.865), the BNNS/Ca-SA/D films with a BNNS loading of 40 wt% were characterized by high in-plane thermal conductivity (45.50 W•m⁻¹•K⁻¹) and good mechanical properties. Combined with finite element analysis to simulate the heat transfer process, the “thermo-mechanical” coupled multilevel oriented structure composite films were constructed due to the densification arrangement and the increase of interfacial adhesion during multiple cross-linking processes, and the orientation arrangement of BNNS during the tensile-induced process. The potential of the BNNS/Ca-SA/D films developed in this study for thermal management applications has been demonstrated by the practical application of thermal management devices and the human body. The polymer-based thermally conductive films developed in this paper offer promising applications for thermal management systems in modern power electronics.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113032"},"PeriodicalIF":14.2,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098214","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}

{"title":"Early fatigue failure detection in composites using autoencoder-based anomaly detection","authors":"Ali Ebrahimi ,&nbsp;Farjad Shadmehri ,&nbsp;Suong Van Hoa","doi":"10.1016/j.compositesb.2025.113038","DOIUrl":"10.1016/j.compositesb.2025.113038","url":null,"abstract":"<div><div>Despite the widespread adoption of composite materials across various industries, accurately evaluating their durability—particularly under fatigue loading—remains a major challenge. A key difficulty lies in the substantial scatter in fatigue life among seemingly identical specimens. This variability elevates the risk of sudden, catastrophic failures and necessitates conservative, schedule-based maintenance plans that are designed around worst-case scenarios. This study presents a novel approach to identify composite specimens with short fatigue lives at the early stage of loading by integrating piezo-resistivity-based structural health monitoring (SHM) with autoencoder-based anomaly detection techniques. Glass fiber–epoxy composites, made electrically conductive by incorporating carbon nanotubes (CNTs), were subjected to fatigue loading until failure, while their electrical resistance (ER) was continuously monitored. The ER data from the early stage of loading were extracted and used to train and optimize autoencoders to detect early fatigue failure (i.e., short-life specimens). The results demonstrated an F1 score of 95 % and an accuracy of 97 % in correctly identifying short-life specimens, underscoring the effectiveness of the proposed approach.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113038"},"PeriodicalIF":14.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098216","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}

{"title":"Revealing the mechanism on HF-induced degradation of PDOL-based electrolytes for high-temperature solid-state lithium metal batteries","authors":"Tongle Xu,&nbsp;Jing Yang,&nbsp;Kangshuai Zhu,&nbsp;Kaidong Zhang,&nbsp;Qinmin Pan","doi":"10.1016/j.compositesb.2025.113040","DOIUrl":"10.1016/j.compositesb.2025.113040","url":null,"abstract":"<div><div>Poly (1,3-dioxolane)-based (PDOL-based) solid polymer electrolytes have attracted much attention in solid-state lithium metal batteries (LMBs) due to their high ionic conductivity and excellent lithium anode compatibility. However, practical application of PDOL-based electrolytes is hindered by poor thermal stability and irreversible degradation caused by hydrofluoric acid (HF) at high temperatures. Herein, we introduce a multifunctional cross-linking agent glycerol triglycidyl ether (TASG) to improve the ionic conductivity and thermal stability of the electrolyte. The stable three-dimensional network structure of PDOL-TASG enhances the thermal stability of the electrolyte. The epoxy group in TASG effectively captures the HF generated by the electrolyte at high temperatures, preventing irreversible degradation of PDOL chains. This capture elevates the thermal stability of the PDOL-based electrolyte from 70 °C to 120 °C. LMBs employing PDOL-TASG electrolyte demonstrate an initial specific discharge capacity of 169 mAh g⁻¹ with 96.4 % capacity retention after 120 cycles at 90 °C at 1C rate. Even at 100 °C, the Li|PDOL-TASG|LFP batteries demonstrate exceptional cyclability, surpassing most reported batteries using solid polymer electrolytes. This work elucidates the mechanism of HF-induced PDOL degradation and provides a strategy to increase high-temperature durability of LMBs using solid polymer electrolytes.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113040"},"PeriodicalIF":14.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098219","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}

{"title":"Development and fabrication of an auxetic composite with the shape memory effect for the regeneration of damaged parts","authors":"Dejan Tomažinčič,&nbsp;Jure Kajbič,&nbsp;Jernej Klemenc","doi":"10.1016/j.compositesb.2025.113034","DOIUrl":"10.1016/j.compositesb.2025.113034","url":null,"abstract":"<div><div>The purpose of the article is to present a design of an active composite cellular structure, which consists of two different materials. A flexible polymer matrix is moulded around a pre-braided wire reinforcement, which is made of a high-strength shape memory material NiTi SMA. The composite is formed in a special mould, which enables manufacturing of cellular auxetic specimens. Since the reinforcements are made from the shape memory alloy, this enables temperature activation of the interwoven reinforcement wires to restore the deformed shape. In addition, such a structure can be deformed according to a precisely defined Poisson's ratio. To design this structure, a special finite-element approach was also developed, which enables simulating the response of a super-elastic material with a shape memory effect. The effectiveness of this finite-element approach was verified by experimental testing of the sample specimen that actually deforms according to the desired negative Poisson's ratio. The experimental results confirmed the regeneration ability of the newly developed cellular composite structure.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"309 ","pages":"Article 113034"},"PeriodicalIF":14.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098217","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}