Composites Part B: Engineering最新文献_第7页

Dynamic dual-network hydrogel microspheres for enhanced nucleus pulposus regeneration via extracellular matrix mimicry 通过细胞外基质模拟增强髓核再生的动态双网络水凝胶微球

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-10 DOI: 10.1016/j.compositesb.2025.112715

Xin Tian , Chenyang Jin , Yan Miao , Hao Liu , Xi Chen , Wenge Ding , Fan He , Yong Xu

{"title":"Dynamic dual-network hydrogel microspheres for enhanced nucleus pulposus regeneration via extracellular matrix mimicry","authors":"Xin Tian , Chenyang Jin , Yan Miao , Hao Liu , Xi Chen , Wenge Ding , Fan He , Yong Xu","doi":"10.1016/j.compositesb.2025.112715","DOIUrl":"10.1016/j.compositesb.2025.112715","url":null,"abstract":"<div><div>The degeneration of intervertebral discs (IVD) remains a significant challenge in regenerative medicine. This study introduces novel hydrogel microspheres (GelMA-FCD-GA) designed to mimic the native extracellular matrix (ECM) of nucleus pulposus cells (NPCs). These microspheres integrate Gelatin Methacrylate (GelMA) with Fucoidan (FCD) and are further modified with aldehyde groups (GA) to establish a dynamic viscoelastic scaffold capable of transducing mechanical signals and promoting cellular functions. In vitro, GelMA-FCD-GA microspheres enhanced mitochondrial function and antioxidant capacity of NPCs, with increased expression of respiratory chain factors and reduced reactive oxygen species. In vivo, the transplantation of NPC-laden GelMA-FCD-GA microspheres into Rat caudal IVDs demonstrated significant regenerative effects, as evidenced by improved MRI signals, restored disc height, and favorable histological outcomes compared to controls. This innovative approach presents a significant advancement in IVDD treatment, combining the mechanical benefits of bioactive materials with the bioactive properties of fucoidan. The dual-network design supports cell adhesion and growth and dynamically adapts to the physiological environment, offering a robust platform for regenerative medicine applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112715"},"PeriodicalIF":12.7,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279938","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

Failure modes of CF-PEEK overmoulded onto unidirectionally reinforced CF-LM-PAEK: Multi-scale pull-off testing and microscopy investigation of rib stiffened geometries 单向增强CF-LM-PAEK上复模CF-PEEK的失效模式：肋增强几何形状的多尺度拉脱试验和显微研究

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112700

Andrew J. Parsons , Jesús Molinar-Díaz , Anatoly Koptelov , Will Darby , Helia Hooshmand , Francisco U. Hernandez Ledezma , Ole T. Thomsen , Jonathan P.H. Belnoue , Lee T. Harper

{"title":"Failure modes of CF-PEEK overmoulded onto unidirectionally reinforced CF-LM-PAEK: Multi-scale pull-off testing and microscopy investigation of rib stiffened geometries","authors":"Andrew J. Parsons , Jesús Molinar-Díaz , Anatoly Koptelov , Will Darby , Helia Hooshmand , Francisco U. Hernandez Ledezma , Ole T. Thomsen , Jonathan P.H. Belnoue , Lee T. Harper","doi":"10.1016/j.compositesb.2025.112700","DOIUrl":"10.1016/j.compositesb.2025.112700","url":null,"abstract":"<div><div>Overmoulding is a manufacturing technique used to create structural composite components with complex shapes, combining regions of continuous and short fibre reinforcement. It is possible to produce structural parts at high rates, whilst minimising materials costs. The interface between the regions of continuous and short fibre material is key to the performance of the structure. This work investigates pull-off testing as a direct method for measuring rib-on-plate bonding strength, a common structural feature of overmoulding. Different rib joint types (Butt, Radius, Step) and specimen sizes (1, 5, 20 mm) are used to investigate the fidelity of the test, when applied to unidirectionally-reinforced low melting point (LM)-PAEK bonded to PEEK ribs.The main findings are that the Butt joint appears to provide the most reliable pull-off test data in terms of determining the interface strength. While the Radius and Step configurations improve local strain and moulding consistency respectively, they tend to promote failure through the ply structure rather than the interface. Recommendations are made in relation to specimen length, ply structure and allowable deformation during manufacture.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112700"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255418","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

Ferromagnetic self-assembled heterostructures of Co/Co3O4 embedded N-doped carbon network for outstanding energy storage performance under moderate magnetic fields Co/Co3O4嵌入n掺杂碳网络的铁磁自组装异质结构在中等磁场下具有出色的储能性能

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112705

Sandya Rani Mangishetti , Gwan Hyeon Park , Junbeom Maeng , Tanwir Ansari , Jungseub Ha , Sanghwa Jeong , Sehun Choi , Yeji Park , Nayeon Kim , Won Bae Kim

{"title":"Ferromagnetic self-assembled heterostructures of Co/Co3O4 embedded N-doped carbon network for outstanding energy storage performance under moderate magnetic fields","authors":"Sandya Rani Mangishetti , Gwan Hyeon Park , Junbeom Maeng , Tanwir Ansari , Jungseub Ha , Sanghwa Jeong , Sehun Choi , Yeji Park , Nayeon Kim , Won Bae Kim","doi":"10.1016/j.compositesb.2025.112705","DOIUrl":"10.1016/j.compositesb.2025.112705","url":null,"abstract":"<div><div>This study aims to create an efficient anode hybrid electrode material for the assembly of asymmetric supercapacitor (ASC) and to further enhance electrochemical performance under moderate external magnetic fields (MFs), addressing the challenges of low energy density in supercapacitor devices while maintaining cycle life and power density. The well-integrated hybrid heterostructures, which embed Co/Co<sub>3</sub>O<sub>4</sub> nanoparticles in nitrogen (N)-doped carbon shells and sheets (Co@N–CNS), demonstrate exceptional physical and electrochemical properties. At a current density of 1.5 A g<sup>−1</sup>, it exhibits a specific capacitance of 1579.8 F g<sup>−1</sup> in a half-cell configuration. Furthermore, the gravimetric capacitance increases to 2429 F g<sup>−1</sup> under a MF of 6 mT. The enhanced energy storage performance is attributed to the reduced charge transfer resistance (R<sub>ct</sub>) and solution resistance (R<sub>s</sub>) resulting from magnetoresistance and magnetic hydrodynamics (MHD) effects. The asymmetric supercapacitor exhibits an outstanding energy density of 221.4 W h kg<sup>−1</sup> and power density of 1.58 kW kg<sup>−1</sup> at 1.5 A g<sup>−1</sup> under a 6 mT MF strengths. It also demonstrates excellent cycling stability (96.2 %) after 10,000 cycles under the same field strength. These results outperform most cobalt-based hybrid electrode materials reported to date. This is the first investigation on a ferromagnetic hybrid electrode material for supercapacitors that demonstrates superior electrochemical performance under both zero and moderate MFs.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112705"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290453","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

Flexible, wideband triboelectric accelerometer integrated into quadruped robot legs for vibration source detection and localization 集成在四足机器人腿上的柔性宽带摩擦电加速度计，用于振动源检测和定位

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112710

Yufen Wu , Yanling Li , Wang Xue , Pan Guo , Tingfu Xiao , Haijun Luo , Xiaohang Li , Xijie Zhu , Jin Yang , Zong-Hong Lin

{"title":"Flexible, wideband triboelectric accelerometer integrated into quadruped robot legs for vibration source detection and localization","authors":"Yufen Wu , Yanling Li , Wang Xue , Pan Guo , Tingfu Xiao , Haijun Luo , Xiaohang Li , Xijie Zhu , Jin Yang , Zong-Hong Lin","doi":"10.1016/j.compositesb.2025.112710","DOIUrl":"10.1016/j.compositesb.2025.112710","url":null,"abstract":"<div><div>Robots play a vital role in vibration detection and localization, particularly in industrial pipeline health monitoring and machinery fault diagnosis. Inspired by the biological ability of animals to perceive vibrations through their limbs, the integration of sensors into robotic legs significantly enhances environmental perception capabilities. However, the design of such sensors involves considerable technical challenges due to the limited space and uneven surfaces of robotic legs, necessitating miniaturization, flexibility, durability, and a wide frequency response range. Addressing these challenges, this study presents a flexible accelerometer integrated into robotic legs for effective vibration sensing in complex environments. The proposed ultra-thin grid-like sensor (UGS), with a thickness of only 0.5 mm, is based on triboelectric nanogenerator principles. It is fabricated using copper and polytetrafluoroethylene powders with optimized particle size combinations, enhancing the contact area and improving output performance. The UGS demonstrates exceptional flexibility, a broad frequency detection range (8 Hz–6 kHz), high sensitivity (0.49584 mV/(m/s<sup>2</sup>)), and remarkable durability, maintaining performance over 35,000 cycles. It effectively detects environmental vibrations as well as signals generated by the robot's movements. Coupled with a time difference of arrival-based localization algorithm, the sensor supports multi-scenario vibration source localization experiments in environments, achieving average angular and distance accuracies of 97.72 % and 95.26 %, respectively. This study highlights the potential applications of the UGS in pipeline leakage detection, machinery fault diagnosis, and structural vibration monitoring, offering innovative solutions for robotic environmental sensing.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112710"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314317","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 situ covalent bond engineering at CFRTP/aluminum interfaces via zinc-assisted friction lap soldering Welding: Mechanisms and performance enhancement 通过锌辅助摩擦搭接焊接CFRTP/铝界面的原位共价键工程：机制和性能增强

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112709

Xiaoyang Bi , Xudong Zhang , Jiachen Li , Peng Li , Honggang Dong

{"title":"In situ covalent bond engineering at CFRTP/aluminum interfaces via zinc-assisted friction lap soldering Welding: Mechanisms and performance enhancement","authors":"Xiaoyang Bi , Xudong Zhang , Jiachen Li , Peng Li , Honggang Dong","doi":"10.1016/j.compositesb.2025.112709","DOIUrl":"10.1016/j.compositesb.2025.112709","url":null,"abstract":"<div><div>The weak interfacial reliability of carbon fiber-reinforced thermoplastic (CFRTP)/aluminum alloy hybrid joints remains a critical bottleneck in lightweight transportation applications. Current work processes an in situ covalent bond engineering within the hybrid structures and develops a novel friction lap soldering welding (FLSW) technique. Integrating a Zn solder interlayer reconstructs bonding behavior by synchronously removing oxide barriers, enhancing atomic diffusion, and promoting covalent interactions. The CFRTP/AA5052 aluminum (5052) FLSW hybrid structures achieve a tensile shear strength of 126.75 N/mm, surpassing the spontaneous fracture joints manufactured by traditional friction lap welding. Importantly, the Zn interlayer enhances interfacial compatibility, increasing the work of adhesion by 40.23 % compared to direct CFRTP/5052 bonding. Microstructural analysis confirms a defect-free Zn–Al eutectic layer formed via Al–Zn interdiffusion. Systematic experimental and density functional theory (DFT) analyses indicate the dual covalent bonding pathways of Zn–O and Al–O covalent bonds formed within the FLSW hybrid structures. Higher Al doping content in α-Zn enhances mechanical properties, lower anisotropy, and stronger covalent bonds. The Zn–Al eutectic layer exposes both Zn and Al atoms for covalent bonding with oxygenated groups of CFRTP, whereas traditional hybrid joints relied solely on sparse Al–O bonds from surface oxides. Current work establishes FLSW as a scalable, oxide-removal strategy for high-performance CFRTP/aluminum joints, advancing lightweight hybrid structure fabrication through interfacial covalent bond engineering.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112709"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270073","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

Fiber distortion impact on the bending deformation of laminated fan blade structures: A numerical and experimental study 纤维变形对层叠风扇叶片结构弯曲变形的影响：数值与实验研究

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112670

Thuan Ho-Nguyen-Tan, Gonui Hong, Anand Prakash Jaiswal, Yuna Oh, Kwak Jin Bae, Jaesang Yu, Minkook Kim, Soon Ho Yoon

{"title":"Fiber distortion impact on the bending deformation of laminated fan blade structures: A numerical and experimental study","authors":"Thuan Ho-Nguyen-Tan, Gonui Hong, Anand Prakash Jaiswal, Yuna Oh, Kwak Jin Bae, Jaesang Yu, Minkook Kim, Soon Ho Yoon","doi":"10.1016/j.compositesb.2025.112670","DOIUrl":"10.1016/j.compositesb.2025.112670","url":null,"abstract":"<div><div>Modeling and manufacturing have always been major challenges in the design of multilayered composite structures. This study introduces a novel modeling technique for the laminated fan blade structure using exact shell models. In the lamination design, iso-contours of the thickness function are used to define ply-shape code topologies with smooth geometric features. To achieve this, the marching squares algorithm is employed to determine intersections between the base mid-shell model and the target function. This lamination design facilitates both the numerical simulation and fabrication stages. Three laminated fan blades with different ply-stacking sequences of <span><math><mrow><mo>(</mo><mo>−</mo><mn>6</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>,</mo><mn>3</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>)</mo></mrow></math></span>, <span><math><mrow><mo>(</mo><mo>−</mo><mn>4</mn><msup><mrow><mn>5</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>,</mo><mn>4</mn><msup><mrow><mn>5</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>)</mo></mrow></math></span>, and <span><math><mrow><mo>(</mo><msup><mrow><mn>0</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>,</mo><mn>9</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>∘</mo></mrow></msup><mo>)</mo></mrow></math></span> are used for this study. In addition, the fiber-draping analysis is employed to predict changes in fiber orientations caused by the geometric curvatures and twists of the structure. Numerical simulation highlights the significant impact of the fiber distortion on the bending deformation of laminated fan blade structures. Through result comparison, numerical findings incorporating fiber-draping analysis show excellent alignment with experimental measurements.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112670"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270075","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

Tailoring the architecture of fractal lattice metamaterials for tunable energy absorption 为可调能量吸收剪裁分形晶格超材料的结构

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-09 DOI: 10.1016/j.compositesb.2025.112711

Zhennan Zhang , Kaiyu Wang , Brett A. Bednarcyk , Louise Le Barbenchon , Yanyu Chen

{"title":"Tailoring the architecture of fractal lattice metamaterials for tunable energy absorption","authors":"Zhennan Zhang , Kaiyu Wang , Brett A. Bednarcyk , Louise Le Barbenchon , Yanyu Chen","doi":"10.1016/j.compositesb.2025.112711","DOIUrl":"10.1016/j.compositesb.2025.112711","url":null,"abstract":"<div><div>Impact accidents pose significant risks to equipment and human safety due to their unpredictable nature. Traditional energy-absorbing materials, such as honeycombs and random foams, have limited potential for optimizing energy absorption. Recent advances in additive manufacturing (AM) have enabled high-performance energy-absorbing structures with rationally designed architectures; however, many of these impact-resistant designs still lack tunable energy absorption for a wide range of applications. Inspired by the fractal patterns of Greek key, a group of lightweight architected materials with expanded mechanical performances, which are easy to manufacture and popularize, were designed to address this challenge. By adjusting the fractal order, cell wall thickness, cell wall gradient, and biaxial pre-strain, out-of-plane mechanical performances, including stiffness, strength, and energy absorption were significantly expanded. Increasing the fractal order resulted in an 85 % increase in energy absorption compared to baseline honeycomb structures. The introduction of wall thickness gradients enhanced energy absorption by up to 522 % compared to the no-gradient case and 331 % more at higher strain levels than honeycombs. Moreover, applying a 20 % biaxial pre-strain increased energy absorption by 45 %. The enhanced mechanical performance originates from the constrained buckling and internal friction mechanisms occurring among the post-buckled cell walls. These findings could pave the way for the development of advanced metamaterials with superior energy absorption capabilities, making them highly adaptable and efficient for a broad range of impact scenarios, including aerospace applications, automotive safety systems, and personal protective equipment.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112711"},"PeriodicalIF":12.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255420","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

Orthogonal orientation incorporated gradient-sandwich structure for enhanced energy storage performance of all-inorganic nanocomposites 正交取向结合梯度夹层结构增强了全无机纳米复合材料的储能性能

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-08 DOI: 10.1016/j.compositesb.2025.112673

Yang Liu , Bingzhong Shen , Bo Xie , Zaiying Li , Jianhong Kang , Yueqing Jiang , Rui Zhang

{"title":"Orthogonal orientation incorporated gradient-sandwich structure for enhanced energy storage performance of all-inorganic nanocomposites","authors":"Yang Liu , Bingzhong Shen , Bo Xie , Zaiying Li , Jianhong Kang , Yueqing Jiang , Rui Zhang","doi":"10.1016/j.compositesb.2025.112673","DOIUrl":"10.1016/j.compositesb.2025.112673","url":null,"abstract":"<div><div>Dielectric energy storage capacitors, widely used in advanced domains of electronics and power, play a crucial role in electronic systems. However, current challenges stem from the coupled limitations of polarization and breakdown field strength in dielectric capacitors, which present significant obstacles to achieving a breakthrough in energy storage performance. Here, we propose an orthogonal design for all-inorganic nanocomposite using innovative composite molding techniques. The increased path tortuosity is tailored during the electrical treeing process through the orthogonal distribution of ferroelectric nanofillers, ensuring the preservation of high breakdown strength and polarization. Meanwhile, a gradient-sandwich multilayer configuration is developed to leverage the interfacial polarization effect and interface barrier effect between adjacent layers. Hence, integrating a gradient electric field distribution enhances both the polarization and breakdown strength of the nanocomposites, ultimately resulting in a significant improvement in energy storage performance. The ultrahigh energy density of 24.5 J cm<sup>−3</sup> at a low electric field of 1700 kV cm<sup>−1</sup> is obtained in orthogonal orientation gradient-sandwich structure ≈1.8 times that of the parallel filler orientations nanocomposites. Incorporating the orthogonal orientation and gradient-sandwich structure strategy significantly enhances energy output, making it suitable for a wide range of electronic devices.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112673"},"PeriodicalIF":12.7,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279934","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

Tackling data scarcity in machine learning-based CFRP drilling performance prediction through a broad learning system with virtual sample generation (BLS-VSG) 基于虚拟样本生成（BLS-VSG）的广义学习系统解决基于机器学习的CFRP钻井性能预测中的数据稀缺性问题

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-07 DOI: 10.1016/j.compositesb.2025.112701

Jia Ge , Zequan Yao , Ming Wu , José Humberto S. Almeida Jr , Yan Jin , Dan Sun

{"title":"Tackling data scarcity in machine learning-based CFRP drilling performance prediction through a broad learning system with virtual sample generation (BLS-VSG)","authors":"Jia Ge , Zequan Yao , Ming Wu , José Humberto S. Almeida Jr , Yan Jin , Dan Sun","doi":"10.1016/j.compositesb.2025.112701","DOIUrl":"10.1016/j.compositesb.2025.112701","url":null,"abstract":"<div><div>Machine learning (ML)-based data-driven method has emerged as a powerful tool for predicting the manufacturing performance of carbon fibre reinforced plastic (CFRP), particularly in CFRP machining, where physics-based models are computationally expensive. However, the effectiveness of ML models are often constrained by limited datasets, due to the high cost and time required for experimental data acquisition. To address this, this paper presents the first study to apply virtual sample generation (VSG) techniques to enlarge the training dataset and mitigate data scarcity in the prediction of CFRP drilling performance. A novel hybrid ML framework integrating Broad Learning System (BLS) and VSG (BLS-VSG) is proposed to combine the capability of BLS in small dataset prediction with the enlarged dataset generated by VSG. The model has been employed to predict the drilling thrust force and delamination damage under various drilling conditions (spindle speed, feed rate, point angle). Three different VSG methods (SMOTE, MD-MTD and CVT) and the number of virtual samples were evaluated in detail. Results show that VSG can effectively enlarge the training dataset and improve the prediction performance of the ML model. Specifically, VSG reduced the mean square error (MSE) and mean absolute percentage error (MAPE) for thrust force prediction by 39.0 % and 12.9 %, respectively, compared to the benchmark without VSG. For delamination factor F<sub>da</sub> prediction, MSE and MAPE were reduced by 22.6 % and 16.5 %, respectively. The proposed BLS-VSG model outperforms other conventional ML models (BPNN, ELM, SVR and RT) for both scenarios (with/without VSG), providing a robust and data-efficient solution for CFRP drilling performance prediction.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"305 ","pages":"Article 112701"},"PeriodicalIF":12.7,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314318","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

Compression resistance of CFRP/mater fractal nested structures based on self-similar fractal strategy 基于自相似分形策略的CFRP/mater分形嵌套结构抗压性能

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-06-07 DOI: 10.1016/j.compositesb.2025.112698

Xiaoli Xu , Wenzhen Huang , Jianxing Yang , Sipei Cai , Jiacheng Wu , Yong Zhang

{"title":"Compression resistance of CFRP/mater fractal nested structures based on self-similar fractal strategy","authors":"Xiaoli Xu , Wenzhen Huang , Jianxing Yang , Sipei Cai , Jiacheng Wu , Yong Zhang","doi":"10.1016/j.compositesb.2025.112698","DOIUrl":"10.1016/j.compositesb.2025.112698","url":null,"abstract":"<div><div>The plastic deformation of metallic structures is promising to improving the load-bearing instability of carbon fiber-reinforced polymer (CFRP) thin-walled structures. Therefore, this study proposes a novel self-similar fractal strategy of CFRP/stainless steel nested structure to fully exploit the mechanical advantages of distinct materials. The structure consists of an outer quadrilateral CFRP tube nested with an internal stainless-steel fractal substructure, named the Quadrilateral Fractal Nested Structure (QFNS). Through the compression test, it is found that the CFRP/stainless steel nested structure has more stable mechanical loading behavior compared with the pure metal structure. Numerical simulations further explored the energy contribution mechanism, which reveals that the load-bearing capacity of QFNS surpasses the combined performance of its individual components, emphasizing the significant interaction effect between internal and external structures. In addition, the fractal order, the number of paving layers and the fractal wall thickness significantly affect its crashworthiness. In particular, when the fractal order increases from 0 to 2, the specific absorption energy increases (SEA) by 122.97 %. Moreover, compared to typical CFRP/metal structures, the self-similar fractal design elevates SEA by 110.39 %. This study provides a cost-effective, lightweight solution with simplified assembly for designing high-performance protective structures.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"304 ","pages":"Article 112698"},"PeriodicalIF":12.7,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242878","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}

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