Composites Part C Open Access最新文献

{"title":"Composite ski boards: Parametric geometric modelling and finite element analysis of ski-snow contact dynamics","authors":"Kouider Bendine ,&nbsp;Mael Belouettar-Mathis ,&nbsp;Henri Perrin ,&nbsp;Ahmed Makradi ,&nbsp;Levent Kirkayak ,&nbsp;Salim Belouettar","doi":"10.1016/j.jcomc.2024.100548","DOIUrl":"10.1016/j.jcomc.2024.100548","url":null,"abstract":"<div><div>In this study, we introduce a comprehensive computational model for the design and performance evaluation of composite snow ski boards. The proposed approach and model involve the precise adjustment of the ski’s profile through parametric geometric modelling, followed by an in-depth evaluation of its structural behaviour using finite element analysis (FEA). This allows for a robust qualitative and quantitative assessment approach that aims to significantly enhance the design and performance of ski boards. The integration of parametric modelling and finite element analysis facilitates a more efficient and iterative design process, allowing for the optimization of various geometric parameters to achieve desired performance characteristics.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100548"},"PeriodicalIF":5.3,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon nanotubes and nanofibers – reinforcement to carbon fiber composites - synthesis, characterizations and applications: A review","authors":"Manirao Ramachandrarao ,&nbsp;Sanan H. Khan ,&nbsp;Kassim Abdullah","doi":"10.1016/j.jcomc.2024.100551","DOIUrl":"10.1016/j.jcomc.2024.100551","url":null,"abstract":"<div><div>Carbon fiber composites are experiencing growing utilization in engineering applications due to their exceptional strength and stiffness properties. Nevertheless, there are still certain limitations in their mechanical and physical properties of carbon fiber composites that need to be addressed to meet the demands of modern scenarios in aerospace, automobile, energy, marine, civil construction, medicine, naval and military applications. A critical study was conducted to investigate various carbon-based nanotubes (CNTs) aimed at enhancing the mechanical and physical properties of carbon fiber composites. This study comprehensively describes the synthesis of CNTs using diverse methods, including in-depth discussions on their processing techniques, characterization, and applications in different fields. Down the stream the preparation of buckypaper and different preparation techniques of CNT-based buckypaper their potential outputs along with its advantages and limitations are discussed. It also highlights the challenges associated with the methods employed, evaluates their suitability, and outlines future avenues for development in the synthesis of CNTs, emphasizing the development of sustainable and scalable synthesis methods, such as Plasma-Enhanced Chemical Vapor Deposition (PECVD) and Microfluidic synthesis by integrating 3D printing and additive manufacturing technologies for the fabrication of carbon fiber composites.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100551"},"PeriodicalIF":5.3,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Residual stiffness and strength analysis of fatigue behavior in a 3D-printed honeycomb structure of continuous glass fiber-reinforced polylactic acid (PLA) composite","authors":"Hussain Gharehbaghi,&nbsp;AmirMohammad Shojaei,&nbsp;Mohammad Sadeghzadeh,&nbsp;Amin Farrokhabadi","doi":"10.1016/j.jcomc.2024.100552","DOIUrl":"10.1016/j.jcomc.2024.100552","url":null,"abstract":"<div><div>This study investigates the fatigue behavior of composite honeycomb structures fabricated using the fused filament fabrication (FFF) technique with a polylactic acid (PLA) matrix and continuous glass fiber reinforcement. Fatigue testing was conducted at stress levels of 55 %, 65 %, and 75 % of the ultimate tensile strength (UTS) to develop S-N curves. All samples were fatigue tested in cyclic tension with a load ratio of R = 0.05. Additionally, the residual stiffness and residual strength of the honeycombs were evaluated at 30 %, 60 %, and 90 % of their average fatigue life. Results indicate that incorporating continuous glass fibers significantly enhances the fatigue life of the PLA honeycomb structures under cyclic tension loading. The fracture surfaces of the specimens were analyzed using scanning electron microscopy (SEM), revealing failure modes similar to those of traditionally manufactured composite honeycombs. The study underscores the potential of FFF in producing engineered composite honeycombs with superior fatigue properties, making them suitable for various high-load applications. The findings also highlight the importance of understanding the residual mechanical properties to predict the long-term performance and reliability of these materials in practical applications.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100552"},"PeriodicalIF":5.3,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143100883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reverse forming thermoplastic composites: Design and process development","authors":"Jelle Joustra ,&nbsp;Karel Brans ,&nbsp;Irene Fernandez Villegas ,&nbsp;Jos Sinke ,&nbsp;Julie Teuwen","doi":"10.1016/j.jcomc.2024.100550","DOIUrl":"10.1016/j.jcomc.2024.100550","url":null,"abstract":"<div><div>Structural reuse is a promising alternative to recycling of composite materials; it preserves material composition while liberating the materials for reuse in secondary applications. Thermoplastic reinforced composite materials have the potential to expand reuse opportunities by adapting their shape, or reversing them to a laminate blank. In this study, we evaluated reverse forming of glass fibre-polypropylene (GF-PP) laminates by developing a processing method, testing material properties and the effect of three design parameters: forming strain, laminate architecture and material type. Forming strain relates to the deformation mechanism of inter-ply slip, and is imposed through varying the contour depth and bending radius. Laminate architecture relates to resin redistribution, and is imposed by using an orthogonal as well as quasi isotropic layup. Finally, the material type affects both Inter-ply slip as well as resin redistribution, and is imposed by using plain and twill weaves. GF-PP blanks were prepared using a heated platen press and subsequently formed and flattened using convection heating (&lt;165 °C) and vacuum pressure in a novel moulding process. The samples had typical values for flexural strength of 91 - 113 MPa and flexural modulus of 9–16 GPa. Using a Design of Experiments analysis the process was deemed robust for the given boundary conditions. These results demonstrate the feasibility of reverse forming for cases where inter-ply slip is the governing deformation mechanism. The presented reverse forming process and design parameters can be used to create new thermoplastic composite parts, anticipating for structural reuse through reverse forming.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100550"},"PeriodicalIF":5.3,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncertainty analysis in the design of Type-IV composite pressure vessels for hydrogen storage","authors":"Yao Koutsawa,&nbsp;Lyazid Bouhala","doi":"10.1016/j.jcomc.2024.100544","DOIUrl":"10.1016/j.jcomc.2024.100544","url":null,"abstract":"<div><div>This study focuses on uncertainty quantification (UQ) and global sensitivity analysis (GSA) for the burst pressure (BP) in Type-IV hydrogen composite pressure vessels. Key uncertain parameters, including elastic properties, composite strengths, ply thicknesses, and fiber orientations, were considered. Latin Hypercube Sampling (LHS) efficiently explored the uncertainty space, while Polynomial Chaos Expansion (PCE) modeled BP responses, with Sparse PCE reducing computational costs by selecting influential polynomial terms. Sobol’ indices were used to assess the direct and total influence of the uncertain parameters on the BP variability, guiding optimization in composite pressure vessel design. The development and analysis of the tank model used conventional shell elements, starting from the liner’s inner dimensions and incorporating filament winding via the Abaqus Composite Layup feature. Critical design aspects, such as ply thickness, material properties and fiber orientation, were employed. Failure analysis, driven by internal pressure, evaluated burst pressure in cylindrical and dome sections. Damage progression was assessed using the Hashin failure criterion. The study explored uncertainty propagation in tank designs across four scenarios, including low-pressure 12-ply tanks and high-pressure 52-ply configurations, incorporating 15 and 37 uncertain parameters. Fiber tensile strength and ply thickness emerged as the dominant factors affecting the BP. Fiber strength and ply thickness consistently influenced stiffness and failure mechanisms, emphasizing their critical role in the hydrogen tank design.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100544"},"PeriodicalIF":5.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143100877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effects of high strain-rate and temperature on tensile properties of UHMWPE composite laminates","authors":"Alia Ruzanna Aziz ,&nbsp;Haleimah Al Abdouli ,&nbsp;Naresh Kakur ,&nbsp;Henrique Ramos ,&nbsp;Rafael Savioli ,&nbsp;Zhongwei Guan ,&nbsp;Rafael Santiago","doi":"10.1016/j.jcomc.2024.100549","DOIUrl":"10.1016/j.jcomc.2024.100549","url":null,"abstract":"<div><div>The high strain-rate and temperature properties of ultra-high molecular weight polyethylene (UHMWPE) composites are limitedly available in the public domain, primarily due to challenges in gripping the extremely strong material during testing. In this study, tensile tests were performed on UHMWPE laminates over a range of strain-rates from 4.00 × 10^-4 to 2.45 × 10² s^-1, and at different temperatures from -10 to 70 °C using an innovative interchangeable clamping system. The clamp was designed to overcome gripping issues while ensuring consistent boundary conditions across various testing devices. Digital Image Correlation (DIC) technique was employed to capture the displacement fields in situ. The results show that UHMWPE composites demonstrate strain-rate strengthening and temperature-induced softening effects. The strain-rate dependent models indicate a notable difference in strain-rate sensitivity, particularly with tensile strength exhibiting 87 % and 60 % higher sensitivity compared to the tensile modulus and failure strain, respectively. The Weibull statistical model indicates that the scale parameter increases by 17 % with the increase in strain-rate due to transition in failure response from ductile to brittle, which is observed through optical microscopy. In contrast, the scale parameter decreases by 58 % with the increase in temperature. Therefore, it is important to consider the effects of strain-rate and temperature on the mechanical properties for effectively utilizing this material to develop numerical models in various impact-protective applications.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100549"},"PeriodicalIF":5.3,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143100882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing flax fibre/biopolymer woven composites with carbon fibre-enhanced, partially green alternatives: Mechanical performance versus sustainability","authors":"Olivia H. Margoto,&nbsp;Abbas S. Milani","doi":"10.1016/j.jcomc.2024.100547","DOIUrl":"10.1016/j.jcomc.2024.100547","url":null,"abstract":"<div><div>Natural fibre/biopolymer matrix, known as green/fully sustainable, composites are emerging as alternatives to non-sustainable or partially sustainable composites, while ideally targeting similar material properties. This study first characterizes and compares thermo-mechanical performance of novel green composites made of Flax Fibre (FF) reinforced in thermosetting bioresin options, fabricated via two different manufacturing techniques. Namely, flax fibre-reinforced bioepoxy (Bioepoxy/35 %FF) woven biocomposite was fabricated via vacuum infusion, while FF-reinforced (bio)Polyfurfuryl Alcohol (PFA) woven prepreg was consolidated through vacuum bagging (PFA/45 %FF) as the second option. Additionally, for design comparisons, Carbon Fibre (CF)-PFA (PFA/60 %CF), as well as hybrid FF-CF-based PFA (PFA/45 %FF-15 %CF) samples were fabricated to understand the performance difference between the green composite options versus the latter partially sustainable or hybrid design alternatives. Results demonstrated that, despite their required different manufacturing techniques, Bioepoxy/35 %FF and PFA/60 %FF provided very comparable density, tensile strength, and impact properties. Both biocomposites outperformed the CF-added designs under damping property (by 150 %) at low frequency and specific energy absorption property (by 37 %), thanks to the unique micro-architecture of flax fibre that enhances deformation energy dissipation through inter- and intra-cell walls friction and internal failure mechanisms. However, incorporating 15 % of CF into PFA/FF (i.e. hybrid PFA/45 %FF-15 %CF) increased the tensile strength by 130 % and the tensile modulus by 90 %, while keeping a similar impact energy absorption as the fully flax-based biocomposite options. The fully CF-based PFA (as a least sustainable option among the tested samples) revealed the highest tensile properties, hardness, and thermal stability, clearly highlighting the necessity for formal trade-off analyses during design.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"16 ","pages":"Article 100547"},"PeriodicalIF":5.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of natural fibers-epoxy composite as thermal insulation coating on galvalume roof","authors":"Redi Bintarto,&nbsp;Anindito Purnowidodo,&nbsp;Djarot B. Darmadi,&nbsp;Teguh Dwi Widodo","doi":"10.1016/j.jcomc.2024.100543","DOIUrl":"10.1016/j.jcomc.2024.100543","url":null,"abstract":"<div><div>Natural fibre composite coatings are an excellent choice for developing and improving the properties of galvalume roofs. This study examines the impact of natural fibre coatings combined with epoxy on galvalume roofs in reducing the thermal conductivity of the roofing material, which in turn will decrease room temperature. Data were collected by applying a mixture of natural fibres and epoxy on top of galvalume roofs, then measuring the temperature around and inside a small room with dimensions of 50 cm x 50 cm. The roof type was varied using natural fibres, including Pandanus tectorius, Fimbristylis globulosa, pineapple leaf (Ananas comosus), and banana fronds (Musa paradisiaca). In addition to thermal conductivity testing, temperature measurements inside and around the room were conducted, along with temperature tests using a thermal imaging camera. The study shows that adding natural fibre mixed with banana fronds on galvalume roofs can reduce the highest thermal conductivity value by 8.88 W/m °C. Banana fronds also demonstrated the highest capability to lower room temperature by 3.2 °C. The study concludes that natural fibres can reduce thermal conductivity in roofs and lower room temperatures.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"15 ","pages":"Article 100543"},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis of delamination resistance in CFRP laminates interleaved by thermoplastic nanoparticle: Evaluating toughening mechanisms in modes I and II","authors":"Reza Mohammadi ,&nbsp;R Akrami ,&nbsp;Maher Assaad ,&nbsp;Ahmed Imran ,&nbsp;Mohammad Fotouhi","doi":"10.1016/j.jcomc.2024.100518","DOIUrl":"10.1016/j.jcomc.2024.100518","url":null,"abstract":"<div><div>The study considers the delamination resistance of carbon/epoxy laminates modified with Thermoplastic Nanoparticles of Polysulfone (TNPs). A new electrospinning nanofiber technique was utilized to convert polysulfone polymer into nanoparticles and uniformly disperse them within the resin. Fracture toughness was evaluated under loading modes I and II. In mode I, the toughness (<em>G_IC</em>) increased significantly from 170 to 328 J/m² with TNPs incorporation. However, mode II showed minimal change, with <em>G_IIC</em> values of 955 J/m² for virgin and 950 J/m² for TNPs-modified specimens. Scanning Electron Microscopy (SEM) was employed to depict the influence of TNPs on damage characteristics and crack propagation patterns. In mode I, crack deviation enhanced toughness as TNPs bypassed the PSU, while in mode II, cracks propagated through TNPs, resulting in particle smearing on the epoxy surface. This highlights TNPs' potential to modify the fracture toughness in mode I loading, but their effect is constrained in mode II loading scenarios.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"15 ","pages":"Article 100518"},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated approach for prognosis of Remaining Useful Life for composite structures under in-plane compressive fatigue loading","authors":"Ferda C. Gül,&nbsp;Morteza Moradi,&nbsp;Dimitrios Zarouchas","doi":"10.1016/j.jcomc.2024.100531","DOIUrl":"10.1016/j.jcomc.2024.100531","url":null,"abstract":"<div><div>The prognostic of the Remaining Useful Life (RUL) of composite structures remains a critical challenge as it involves understanding complex degradation behaviors while it is emerging for maintaining the safety and reliability of aerospace structures. As damage accumulation is the primary degradation indicator from the structural integrity point of view, a methodology that enables monitoring the damage mechanisms contributing to the structure's failure may facilitate a reliable and effective RUL prognosis. Therefore, in this study, an integrated methodology has been introduced by targeting the RUL and progressive delamination state via Deep Neural Network (DNN) trained with Guided wave-based damage indicators (GW-DIs). These GW-DIs are obtained via signal processing, Hilbert transform, and Continuous Wavelet Transform. This work uses GW-DIs to train and test the proposed model within two frameworks: one focusing on individual sample analysis to explore path dependency in RUL and delamination prognosis and another on an ensembled dataset to propose a generic model across varying stress scenarios. Results from the study indicate that proposed DNN frameworks are capable of encapsulating fast and slow degradation scenarios to evaluate the RUL prediction with associated delamination progress, which could contribute to ensuring the integrity and longevity of critical life-safe structures.</div></div>","PeriodicalId":34525,"journal":{"name":"Composites Part C Open Access","volume":"15 ","pages":"Article 100531"},"PeriodicalIF":5.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}