Composites Part C Open Access最新文献_第2页

Strain and damage sensing performance of functionally graded nanocomposite lattices enabled by DLP 3D printing DLP 3D打印实现功能梯度纳米复合材料晶格的应变和损伤传感性能

IF 7

Composites Part C Open Access Pub Date : 2025-08-07 DOI: 10.1016/j.jcomc.2025.100634

Omar Waqas Saadi , Andreas Schiffer , S Kumar

{"title":"Strain and damage sensing performance of functionally graded nanocomposite lattices enabled by DLP 3D printing","authors":"Omar Waqas Saadi , Andreas Schiffer , S Kumar","doi":"10.1016/j.jcomc.2025.100634","DOIUrl":"10.1016/j.jcomc.2025.100634","url":null,"abstract":"<div><div>This research examines the mechanical and piezoresistive characteristics of geometrically graded octet and kelvin lattices fabricated via Digital Light Processing (DLP) additive manufacturing technique. The geometrically graded lattice structures feature varying unit cell sizes with constant relative density (20, 30, and 40 %), and are composed of electrically conductive nanocomposite photoresin loaded with 0.05 phr multi-walled carbon nanotubes (MWCNTs). Under monotonic compression, the peak stress and energy absorption of the graded octet lattice are found to rise with increasing level of gradation, reporting enhancements in the latter properties by factors of up to 2.6 and 2.0, respectively, in comparison to their non-graded counterparts of equal weight. In contrast, the graded kelvin lattice structures show lower enhancements in energy absorption of up to 1.2 times the non-graded equivalent. The piezoresistive response of both octet and kelvin lattices is characterized by a sharp initial drop in electrical resistance followed by a nonlinear response that shows signatures related to distinct failure processes observed in the studied structures. The initial gauge factor of the lattice structures is found to increase with increasing level of gradation and relative density. The geometric gradients also enhance the structure’s recoverability, allowing the struts in the softer layers to fold and unfold during cyclic compressive loading, yielding enhanced cyclic stability in piezoresistive behavior. The findings of this study suggest that the adoption of functional geometry gradients in nanocomposite lattices can assist in achieving enhanced energy absorption and strain/damage sensing functionalities under various loading conditions.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"18 ","pages":"Article 100634"},"PeriodicalIF":7.0,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144829782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bayesian modelling approach to hydrogen permeation in fibre-reinforced polymer composites 纤维增强聚合物复合材料氢渗透的贝叶斯建模方法

IF 7

Composites Part C Open Access Pub Date : 2025-08-05 DOI: 10.1016/j.jcomc.2025.100630

Andrew Angus , Mustafa Okumuş , Łukasz Figiel

引用次数: 0

Effective suppression of machining-induced interlayer damage in machined holes of Al/CFRP stacks 有效抑制Al/CFRP叠层加工孔层间损伤

IF 5.3

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100627

Balázs Markó , Szilárd Seprős , Jinyang Xu , Norbert Geier

{"title":"Effective suppression of machining-induced interlayer damage in machined holes of Al/CFRP stacks","authors":"Balázs Markó , Szilárd Seprős , Jinyang Xu , Norbert Geier","doi":"10.1016/j.jcomc.2025.100627","DOIUrl":"10.1016/j.jcomc.2025.100627","url":null,"abstract":"<div><div>Aluminium/carbon fibre reinforced polymer (Al/CFRP) composite stacks combine the high strength-to-weight ratio of the CFRP with the ductility and impact resistance of aluminium. Due to their excellent mechanical properties, Al/CFRP stacks are becoming increasingly popular in major industrial fields such as aerospace and automotive. However, mechanical machining of these materials, particularly at the interlayer regions, presents significant challenges, notably the formation of interlayer burrs. To address this issue, we introduce an innovative hole-making technology designed to minimise machining-induced interlayer burr formation. The novel technology integrates helical and spiral interpolation strategies to reduce axial force at the interlayer interfaces. We validated the efficiency of the novel technology through a series of machining experiments, employing a Central Composite Inscribed (CCI) experimental design. The experiments were performed on a three-axis CNC milling centre, with burr measurements obtained using a Keyence VR-5000 3D profilometer. Maximum burr heights were recorded along the hole contours at one-degree intervals. Our findings demonstrate a significant reduction (28 %) in interlayer burr formation in unidirectional carbon fibre-reinforced polymer (UD-CFRP) plates when utilising the proposed technique. These results suggest that our developed method is promising to improve machining quality in Al/CFRP stacks, meriting further investigation and development.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100627"},"PeriodicalIF":5.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fatigue behavior and failure mechanism of 3D-printed continuous glass fiber-reinforced PLA composites under rotating bending fatigue 旋转弯曲疲劳下3d打印连续玻璃纤维增强PLA复合材料的疲劳行为及失效机理

IF 5.3

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100623

Mehrnoosh Javadian, Ali Dadashi, Abbasali Bagheri, Mohammad Azadi

{"title":"Fatigue behavior and failure mechanism of 3D-printed continuous glass fiber-reinforced PLA composites under rotating bending fatigue","authors":"Mehrnoosh Javadian, Ali Dadashi, Abbasali Bagheri, Mohammad Azadi","doi":"10.1016/j.jcomc.2025.100623","DOIUrl":"10.1016/j.jcomc.2025.100623","url":null,"abstract":"<div><div>This study investigates the fatigue behavior and failure mechanisms of 3D-printed polylactic acid (PLA) composites reinforced with continuous glass fibers under rotating bending fatigue. Composite specimens were fabricated using a modified fused deposition modeling (FDM) printer with fiber volume fractions of 16 %. Fatigue testing was conducted under fully reversed loading at room temperature, and fracture surfaces were analyzed using field-emission scanning electron microscopy (FE-SEM). Results indicate that fiber reinforcement significantly enhances fatigue resistance, with fiber orientation (+45/-45) and infill density playing critical roles in improving performance. A Poisson regression model confirmed the statistical significance of all main effects and two interactions, with print direction having the greatest influence. Fractographic analysis revealed void, fiber breakage, and fiber-matrix debonding as key failure modes. The study provides crucial insights for optimizing composite materials for applications involving cyclic loading.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100623"},"PeriodicalIF":5.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and analysis of energy storage multifunctional composite structures with embedded lithium-ion batteries 嵌入式锂离子电池储能多功能复合材料结构设计与分析

IF 7

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100631

Koranat Pattarakunnan , Joel L. Galos , Raj Das

{"title":"Design and analysis of energy storage multifunctional composite structures with embedded lithium-ion batteries","authors":"Koranat Pattarakunnan , Joel L. Galos , Raj Das","doi":"10.1016/j.jcomc.2025.100631","DOIUrl":"10.1016/j.jcomc.2025.100631","url":null,"abstract":"<div><div>Multifunctional carbon fibre reinforced polymer (CFRP) composite structures with embedded batteries can simultaneously carry mechanical loads and store and supply electrical energy have future potential applications in electric vehicles. This paper conducts a parametric study of CFRP laminates with embedded batteries using a finite element (FE) model that has been experimentally validated. The parametric study investigated the effects of number of embedded lithium-ion (Li-ion) polymer (LiPo) batteries (up to 400 batteries), their locations (up to a grid of 20 × 20 batteries) and thicknesses (4 mm, 2 mm and 1 mm), as well as CFRP fibre stacking sequences ([0],[0/90],[0/±45/90] and [±45]) on specific stiffness and strength (density normalised) and gravimetric energy density of multifunctional CFRP laminates. A similar FE parametric study on a curved CFRP vehicle roof with embedded batteries was also conducted. Embedded batteries can provide energy density of up to about 75 Wh/kg and 20 Wh/kg when 20 × 20 batteries were embedded in CFRP laminates and CFRP roof, respectively. However, they had adverse effects on specific mechanical properties of both CFRP laminates and CFRP roof with embedded batteries. It was suggested that the thickness of the embedded batteries should be carefully picked to achieve an optimal trade-off between desired energy density and resultant specific mechanical properties.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100631"},"PeriodicalIF":7.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Addressing process-induced porosity variations in multiscale composite materials analysis using aggregated projection clustering and Halton sequence RVE sampling 利用聚合投影聚类和霍尔顿序列RVE采样处理多尺度复合材料分析中过程引起的孔隙度变化

IF 7

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100625

Hamidreza Dehghani , Henri Perrin , Elias Belouettar-Mathis , Borek Patzák , Salim Belouettar

{"title":"Addressing process-induced porosity variations in multiscale composite materials analysis using aggregated projection clustering and Halton sequence RVE sampling","authors":"Hamidreza Dehghani , Henri Perrin , Elias Belouettar-Mathis , Borek Patzák , Salim Belouettar","doi":"10.1016/j.jcomc.2025.100625","DOIUrl":"10.1016/j.jcomc.2025.100625","url":null,"abstract":"<div><div>A challenge associated with the multiscale modeling of highly consolidated composites is the existing contact effects arising from the manufacturing process. In such cases, porosity significantly decreases as we approach the consolidation surfaces, leading to substantial variations in material behavior in those areas. To address this, we propose an unsupervised machine learning approach integrated with micro-computed tomography (<span><math><mi>μ</mi></math></span>CT) image processing and Asymptotic Homogenization (AH) for accurate and robust consideration of real microstructure as the basis for an upscaling process. This process employs systems of partial differential equations (PDEs) known as cell problems. This work introduces the Aggregated Vertical Projection Clustering (APC) method, which applies K-means clustering to partition the data into k groups based on porosity. We also present a novel porosity-based periodic cell selection strategy, which uses the Halton sequence to select representative volume element (RVE) cells for each cluster. The workflow generates computational meshes of RVE cells for Finite Element (FE) analysis, solves the cell problems required for upscaling, and calculates the effective heat conductivity. Statistical descriptions and representativity analyses demonstrate that the proposed methodology efficiently and accurately computes the effective properties in these challenging cases.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100625"},"PeriodicalIF":7.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation 混杂纤维增强三元混合碱活化混凝土的抗压强度和抗冲击性能：实验、威布尔分析和有限元模拟

IF 7

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100629

Tejeswara Rao Maganti , Chandra S Kandikuppa , Hari K.R. Gopireddy , Revanth Dugalam , Krishna Rao Boddepalli

{"title":"Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation","authors":"Tejeswara Rao Maganti , Chandra S Kandikuppa , Hari K.R. Gopireddy , Revanth Dugalam , Krishna Rao Boddepalli","doi":"10.1016/j.jcomc.2025.100629","DOIUrl":"10.1016/j.jcomc.2025.100629","url":null,"abstract":"<div><div>This study explores hybrid fiber-reinforced alkali-activated concrete (AAHFRC) as a sustainable solution, enhancing compressive strength and impact resistance through the bridging capacity of hybrid fibers. Utilizing a specialized ternary mix with FA: GGBS: SF in a 35:50:15 ratio with the hybrid interaction of steel, polypropylene, and glass fibers demonstrates the significant improving the impact resistance performance. Experiments were conducted on the compressive strength and impact resistance of AAHFRC in accordance with ACI 544 guidelines. Experimental results demonstrated a 63 % increase in compressive strength, with the highest value of 106.38 MPa recorded for the ASG2.0 hybrid mix, along with a significant improvement in impact resistance. The hybrid fiber mixes outperformed mono-fiber mixes, achieving the highest fracture impact energy (Ef) of 56 kN-m. The synergy factor further validated the effectiveness of hybrid systems, with ASG2.0 attaining a synergy index of 1.37, surpassing mono-fiber mixes. Complementing the experimental findings, statistical Weibull analysis and finite element analysis (FEA) using ANSYS were conducted. The Weibull analysis revealed strong reliability, with an R-squared value of 0.989, indicating high consistency in impact resistance performance. Explicit dynamic analysis using FEM verified improved stress distribution, reduced deformation, and a strong correlation between experimental and simulated results, with a difference of not more than 5 %. These outcomes demonstrate the potential of AAHFRC as a sustainable, durable, and high-performance material for advanced construction applications.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100629"},"PeriodicalIF":7.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

B-value Based Damage Source Localization and Classification Using Acoustic Emission (AE) Data for Concrete Cylinders Wrapped with Hybrid FRCM Composites 基于b值的复合材料包裹混凝土圆柱体损伤源定位与声发射分类

IF 5.3

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100624

Nikhil Holsamudrkar, Sauvik Banerjee

{"title":"B-value Based Damage Source Localization and Classification Using Acoustic Emission (AE) Data for Concrete Cylinders Wrapped with Hybrid FRCM Composites","authors":"Nikhil Holsamudrkar, Sauvik Banerjee","doi":"10.1016/j.jcomc.2025.100624","DOIUrl":"10.1016/j.jcomc.2025.100624","url":null,"abstract":"<div><div>Structural health monitoring (SHM) of multi-component strengthening systems, such as impregnated fiber-reinforced cementitious matrix (FRCM) composites, presents significant challenges. Previous studies have focused on damage detection and classification using the acoustic emission (AE) technique. However, damage localization in such strengthened systems remains unexplored due to the varying material velocities in the fabric, pre-impregnation matrix, cementitious matrix, and concrete. This paper proposes a simplified b-value-based damage localization approach for FRCM-wrapped concrete cylinders. The study involves strengthening six concrete cylinders with pre-impregnated fabric and a spike mechanical anchorage system. Additionally, AE-based health monitoring is employed during uniaxial compression testing. The results demonstrate that mechanical anchorage and pre-impregnation improves the overall confinement capacity by about 40%–49% compared to unconfined specimens. Whereas, spatial b-value-based damage localization, implemented using a wrapped cylinder algorithm, accurately predicts severe damage locations. Furthermore, the cumulative second-order entropy trend strongly correlates with the cumulative signal strength trend, suggesting that feature-based damage detection can be considered a reliable approach.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100624"},"PeriodicalIF":5.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Use of Fourier-based frequency-wavenumber domain filtering of simulated elastic waves for damage detection in fiber/polymer composites 基于傅立叶的模拟弹性波频波数域滤波在纤维/聚合物复合材料损伤检测中的应用

IF 5.3

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100626

Hans-Henrik Benzon, Malcolm McGugan, Xiao Chen

引用次数: 0

Performance comparison of fiber reinforced polymer (FRP) systems and textile reinforced mortar (TRM) for concrete confinement at elevated temperature 纤维增强聚合物（FRP）体系和纺织增强砂浆（TRM）在高温下混凝土约束的性能比较

IF 5.3

Composites Part C Open Access Pub Date : 2025-07-01 DOI: 10.1016/j.jcomc.2025.100628

D. Akhil Varma , Prabir K. Sarker , Mini K. Madhavan , Karingamanna Jayanarayanan

{"title":"Performance comparison of fiber reinforced polymer (FRP) systems and textile reinforced mortar (TRM) for concrete confinement at elevated temperature","authors":"D. Akhil Varma , Prabir K. Sarker , Mini K. Madhavan , Karingamanna Jayanarayanan","doi":"10.1016/j.jcomc.2025.100628","DOIUrl":"10.1016/j.jcomc.2025.100628","url":null,"abstract":"<div><div>Due to the infrastructure development, retrofitting and rehabilitation techniques are gaining momentum in the construction sector. Fiber reinforced polymer and textile reinforced mortar confinement are recognized as promising techniques by the industry. The current study evaluates the effectiveness of Textile Reinforced Mortar (TRM) and Fiber Reinforced Polymer (FRP) systems for confining concrete cylinders under high temperatures, utilizing jute and basalt fibers as reinforcing agents. The confinement efficiencies of TRM hybrid systems were 1.50, 1.46, 1.46 and 1.34 at temperatures of 100 °C, 200 °C, 300 °C, and 400 °C respectively, while for the hybrid FRP system, they were 1.58, 1.47, 1.29 and 1.15 at the same temperatures after 4-hour exposure. The addition of jute fibers in TRM demonstrated a notable enhancement in residual strength, Young's modulus, and failure strain at temperatures reaching 400 °C, whereas basalt fiber-reinforced TRM systems exhibited better thermal and fire resistance. Conversely, FRP systems, which consist of jute and basalt fibers, showed reduced mechanical properties and considerable degradation under high temperatures. The results indicate that TRM systems provide a more efficient and dependable option for concrete confinement applications under high temperatures, especially when jute and basalt fibers are utilized as reinforcement materials. The exceptional efficiency of TRM confinement systems at high temperatures positions them as a viable substitute for conventional FRP confinement systems in structural applications in fire-sensitive environments.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"17 ","pages":"Article 100628"},"PeriodicalIF":5.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144657275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0