Article
Engineering, Manufacturing
T. S. Mesogitis, G. M. Maistros, M. Asareh, C. Lira, A. A. Skordos
Summary: The study optimized a dielectric sensor for process monitoring in RTM, validated the technology's feasibility in industrial conditions through simulation and optimization. Increasing wire radius and decreasing coating thickness were found to improve sensor sensitivity, allowing for effective operation at high pressure and temperature.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Aerospace
R. del Cuvillo, J. A. Artero-Guerrero, J. Pernas-Sanchez, J. Lopez-Puente
Summary: Carbon fiber reinforced epoxy laminates are widely used in aeronautical structures. This study investigates the addition of graphene particles to improve the mechanical properties of laminates manufactured using resin transfer moulding. The research demonstrates a 7.6% improvement in compression after impact tests and reveals the influence of graphene on the load-bearing capacity of the laminates through SEM analysis. Additionally, the feasibility of using graphene in an industrial environment is demonstrated by manufacturing an aircraft structure without modifying the existing industrial process.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
James J. Murray, Ankur Bajpai, James Quinn, Jake McClements, Klaus Gleich, Edward D. McCarthy, Conchur M. O. Bradiagh
Summary: This study investigates the fibre-matrix interfacial properties of glass-fibre/polyamide-6 composites produced by thermoplastic resin transfer moulding. The results show that the use of a novel reactive fibre sizing improves the adhesion between fibres and matrix, as well as the fracture toughness of the composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Somen K. Bhudolia, Goram Gohel, Jayaram Kantipudi, Kah Fai Leong, Pierre Gerard
Summary: Current research investigates the low-velocity impact response of hollow tubular structures manufactured using novel thermoplastic resin and carbon fiber reinforcements. The study found that the new composite material showed advantages in peak load and absorbed energy, with higher damage energy attributes.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
Yutong Fu, Xuefeng Yao, Xuhao Gao
Summary: This paper investigates the void generation in 3D braided composites during RTM process and optimizes its manufacturing technology. By deriving governing equations and simulating the RTM process using FEM, the study analyzes the effects of resin parameters on void distributions and contents in 3D braided composite cells. The results provide a theoretical basis for analyzing void generation and evaluating the quality of 3D braided composites made by RTM technology.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Byeong-Joo Kim, Jinsik Kim, Sang-Hyup Cha, Yoon-Bo Shim, Changyoon Jeong, Namhun Kim, Young-Bin Park
Summary: A novel sandwich-structured composite was fabricated and characterized, consisting of a 3D printed core and a woven carbon fiber/polyamide-6 facesheet. The use of 3D printing technology, interfacial strengthening techniques, and T-RTM process resulted in synergistic effects on mechanical properties, enhancing compressive properties and impact resistance significantly.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
I Lizarralde, E. Sapountzi, T. Benethuiliere, F. Sket, C. Gonzalez
Summary: The micro-crack formation and propagation mechanisms in non-crimp fabric laminates produced by resin transfer moulding and subjected to thermal cycling were characterized using X-ray computed tomography and machine learning algorithms. It was found that the presence of stitching thread induced matrix cracks triggered by temperature drop. This information helps to understand damage progression.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Composites
Seung Mo Son, Minjung Kim, Jung Jae Yoo, Min Seong Kim, Byeong-Su Kim, Dong Gi Seong
Summary: An efficient process for improving the water stability of carbon fiber reinforced thermoplastic (CFRTP) has been proposed by coating fluorinated polydopamine (f-PDA) on PA 6-based CFRTP. The f-PDA-CFRTP showed enhanced mechanical properties, with a 16% increase in interlaminar shear strength and a 31% increase in flexural strength when immersed in water. It also exhibited improved anti-icing performance, with a 49% reduction in surface energy. The f-PDA-CFRTP has potential applications in external parts of transportation industries, ensuring environmental reliability.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
J. V. Viisainen, A. Hosseini, M. P. F. Sutcliffe
Summary: This study investigates the effect of component geometry on the wrinkling mechanisms of non-crimp fabrics during preforming, revealing the significant impact of geometry on wrinkle severity and the existence of two possible wrinkling mechanisms. Additionally, the increase in local shear resistance and textile compression are shown to be related to fabric wrinkles.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Civil
Somen K. Bhudolia, Goram Gohel, Jayaram Kantipudi, Kah Fai Leong, Pierre Gerard
Summary: The study investigates the impact and flexure properties of thin hollow woven carbon fiber tubular structures with Elium (R) matrix system compared to Epoxy matrix system. Results show that WC/EL tubular configuration exhibits significant improvements in peak load and absorbed energy, making it a promising alternative for industrial applications.
THIN-WALLED STRUCTURES
(2021)
Article
Chemistry, Physical
Christophe Floreani, Colin Robert, Parvez Alam, Peter Davies, Conchur M. O. Bradaigh
Summary: This study investigates the interlaminar fracture toughness, in-plane mechanical properties, and mixed-mode critical strain energy release rate of powder epoxy composites. The results show that the toughness of this material is significantly higher than that of other epoxy composites, making it suitable for manufacturing structures where there is a risk of delamination.
Article
Materials Science, Composites
Yuki Fujita, Satoshi Noda, Junichi Takahashi, Emile S. Greenhalgh, Soraia Pimenta
Summary: This paper investigates the fracture behavior of injection-moulded short-fibre composites and finds that the fracture toughness of the material increases with increasing fibre orientation, moisture content, and temperature. The increase in toughness is related to changes in failure and toughening mechanisms.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Prasad Shimpi, Andrey Aniskevich, Daiva Zeleniakiene
Summary: This research successfully developed smart multifunctional composites by controlling vacuum pressure to uniformly disperse carbon nanotubes on the surface or inside a glass fabric, enabling detection of different types of strain.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Materials Science, Composites
Rajan Jagpal, Evangelos Evangelou, Richard Butler, Evripides G. Loukaides
Summary: This study demonstrates the feasibility and flexibility of the distributed magnetic clamping (DIMAC) method in multiple ply forming strategies, and proposes a method to measure the wrinkling degree. The study also analyzes the impact of ply bending mechanics on the compression folding process.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Jindong Zhang, Gang Liu, Peng An, Kun Yu, Jia Huang, Yangyang Gu, Jianan Yao, Rui Cao, Hao Liu, Chunhai Chen, Chao Zhang, Ming Wang
Summary: This paper investigates the effects of cooling rates on the crystallization behavior, interfacial bonding strength, interlaminar fracture toughness and low-velocity impact performance of carbon fiber reinforced poly(aryl ether ketone) (PAEK) and poly(ether ether ketone) (PEEK) composites. The results show that PAEK has lower crystallinity and smaller crystals compared to PEEK at the same cooling rate. The lower crystallinity and smaller crystals of PAEK contribute to improved matrix ductility and interfacial bonding strength in the composites. Under water cooling conditions, the impact damage area of CF/PAEK is about 71% lower than that of CF/PEEK, while the CAI is about 14% higher.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Mechanics
J. A. Pascoe, S. Pimenta, S. T. Pinho
COMPOSITE STRUCTURES
(2020)
Article
Materials Science, Composites
Lorenzo Mencattelli, Silvestre T. Pinho
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Article
Mechanics
Gianmaria Bullegas, Jorge Moledo Lamela, Soraia Pimenta, Silvestre Taveira Pinho
ENGINEERING FRACTURE MECHANICS
(2020)
Article
Engineering, Multidisciplinary
R. O. S. S. da Costa, S. T. Pinho
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2020)
Article
Materials Science, Multidisciplinary
R. Hasa, S. T. Pinho
Review
Materials Science, Composites
Janos Plocher, Lorenzo Mencattelli, Federico Narducci, Silvestre Pinho
Summary: Recent studies have shown that replicating structures and toughening mechanisms found in flora and fauna can help create high-performance fiber-reinforced polymers with enhanced toughness and damage tolerance. Understanding the design principles and mechanisms is crucial in manufacturing damage-tolerant bio-inspired composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
T. J. Katafiasz, E. S. Greenhalgh, G. Allegri, S. T. Pinho, P. Robinson
Summary: The study found that the mode I propagation fracture toughness tested at wet/90 degrees C showed a 176% increase compared to the dry/19 degrees C specimens, due to enhanced plastic deformation of the interlayers and more prominent fibre bridging. However, moisture-saturated coupons tested at -55 degrees C suffered a 57% reduction of mode I fracture toughness compared to those under dry/19 degrees C conditions, which is attributed to the dis-bond and consequent plucking of the thermoplastic particles from the surrounding matrix. This suggests that wet/cold conditions may represent the worst-case scenario for the interlaminar fracture performance of composite systems toughened with thermoplastic interleaves.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
B. Yu, T. J. Katafiasz, S. Nguyen, G. Allegri, J. Finlayson, E. S. Greenhalgh, S. T. Pinho, S. Pimenta
Summary: The research shows that the translaminar fracture toughness of aerospace composites is influenced by different temperature and moisture conditions, especially with a more significant increase under wet conditions. A model has been developed to predict the effects of humidity and temperature on fracture toughness, aiding in a better understanding of toughening mechanisms in composite materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Multidisciplinary Sciences
B. Yu, T. J. Katafiasz, S. Nguyen, G. Allegri, J. Finlayson, E. S. Greenhalgh, S. T. Pinho, S. Pimenta
Summary: This study aims to quantify and model the statistical distribution of fibre pull-out lengths formed on the translaminar fracture surface of composites for the first time. X-ray computed tomography is used to measure the extent of fibre pull-out, and the relationship between pull-out length distributions, micromechanical properties, and the translaminar fracture toughness is established.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Torquato Garulli, Tomas J. Katafiasz, Emile S. Greenhalgh, Silvestre T. Pinho
Summary: In this work, a bio-inspired microstructural concept is designed and manufactured to enhance the longitudinal compressive performance of multidirectional carbon fiber reinforced polymer (CFRP) laminates. Taking inspiration from layered materials found in nature, such as the anchoring spicula of the deep-sea glass sponge Monoraphis chuni, the authors created various design concepts and developed a strategy to reproduce the characteristic alternation of stiff and soft regions observed in the natural material. The proposed microstructure showed significant improvements in failure load and ligament specific stress at failure compared to a baseline laminate, suggesting its potential for lightweight structure design subjected to compression loading.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
M. Erfan Kazemi, Victor Medeau, Emile Greenhalgh, Paul Robinson, James Finlayson, Silvestre T. Pinho
Summary: This study proposes a novel design methodology using bio-inspired and interleaved layups to develop hybrid carbon fibre-reinforced polymer composite structures for improved high-velocity impact performance. The results show that the new design significantly improves energy dissipation and activates additional failure mechanisms compared to traditional layups.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Adam D. Whitehouse, Victor Medeau, Lorenzo Mencattelli, Bamber Blackman, Silvestre T. Pinho
Summary: This study develops a novel profiling concept to improve the mechanical performance of adhesive joints between metallic adherends and composite substrates. The experiments show that profiling the edge of the metallic adherend can increase the peak load by at least 27% and improve the stability of failure. Further experiments demonstrate that increasing the profile parameters can achieve significant mechanical performance gains. Acoustic emission monitoring data shows that profiling results in failure initiation occurring at higher loads, suggesting better stress distributions and lower peak stresses. Fracture surface analysis reveals that profiling deflects the translaminar fracture path and enhances damage tolerance through a debonding mechanism at the profile tips.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Composites
M. Erfan Kazemi, Victor Medeau, Lorenzo Mencattelli, Emile Greenhalgh, Paul Robinson, James Finlayson, Silvestre T. Pinho
Summary: We introduce novel zone-based hybrid laminate concepts to enhance the high-velocity impact (HVI) response of baseline carbon fibre-reinforced polymer (CFRP) composites. By keeping approximately 80% of the baseline CFRP mass in the hybrid concepts, similar areal weights and substantial in-plane mechanical properties are maintained. Three zones are identified along the laminate thickness, and tailored materials are incorporated to improve the HVI response. Various materials, including carbon (thin- and thick-plies), glass, Zylon, ultra-high molecular weight polyethylene (UHMWPE), shape memory alloy/carbon fabric, and ceramic, alumina, and titanium sheets, are studied. All laminate concepts have comparable areal weights for meaningful comparison. Experimental results demonstrate up to 95% improvement in energy dissipation compared to the baseline quasi-isotropic (QI) CFRP configuration.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Masahito Ueda, Yuki Suzuki, Silvestre T. Pinho
Summary: The analytical method for calculating the axial compressive stress-strain relationship of a unidirectional carbon fiber-reinforced plastic (UD CFRP) was presented, taking into account the variability of the fiber misalignment angle. It was found that the load-bearing capabilities of different fiber groups decreased significantly with greater misalignment angles. Fibers with a misalignment angle of 0.5 degrees showed a large load drop after reaching their maximum loading, leading to ultimate failure.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Mechanics
E. S. Kocaman, B. Y. Chen, S. T. Pinho
COMPOSITE STRUCTURES
(2020)
Article
Materials Science, Composites
Xi Liu, Wei Shen, Jincun Fu, Toshiaki Natsuki, Lvtao Zhu
Summary: The 3-D carbon fiber reinforced resin matrix composite tubes were designed and formed using a novel braiding-winding-pultrusion processing technique. The effects of temperature environments on the mechanical responses and damage behaviors of the composite tubes were investigated, and it was found that the structural design of the tubes directly affects their axial bearing capacity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Weihao Yuan, Ziyang Zhang, Yueshan Li, Yudong Huang, Zhengxiang Zhong, Zhen Hu
Summary: In this study, the simultaneous self-healing of matrix and interface damage of fiber-reinforced composites was achieved by integrating extrinsic self-healing based on microcapsules and internal self-healing based on coordination interaction. The high exothermic action of epoxy resin and mercaptan repair agent in the self-healing process was observed using infrared thermal imaging technology for in-situ and real-time damage detection.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Israr Ud Din, Adnan Ahmed, Farah Tarek, Wesley Cantwell, Kamran A. Khan
Summary: In this study, a finite element model driven by XCT was developed to simulate the folding characteristics of origami structures, and the results showed good agreement with experimental data. The study demonstrates the potential application of XCT-driven FE modeling in simulating foldable structures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yishan Yang, Yukang Lai, Song Zhao, Hongguang Chen, Renshu Li, Yongjiang Wang
Summary: This study reports the synthesis of a new transparent fiber reinforced polymer material (tGFRP) with high transparency and superior mechanical properties by controlling the refractive index of epoxy resin and using a novel processing technique.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuhang Liu, Kai Huang, Junfeng Ding, Shangyang Yu, Zhixing Li, Li Zhang, Licheng Guo
Summary: This study proposes a method for accurately predicting the penetration failure load of composites using acoustic emission (AE) data. The method includes a cyclic loading test schedule and an extrapolation method based on uncertainty. The results show that this method can accurately predict the failure load when LR equals 1.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Jinxia Cai, Bing Xie, Yunliang Jiang, Jinshan Lu, Zeyu Li, Pu Mao, Mohsin Ali Marwat, Haibo Zhang
Summary: This research aims to develop ternary nanocomposites composed of polycarbonate, Al2O3 nanoparticles, and BaTiO3 nanowires for capacitive energy-storage. By optimizing the capacitor materials, the discharge energy density and efficiency have been improved, and the superiority of the ternary polymer nanocomposites for dielectric energy-storage has been validated through finite element analysis.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Hon Lam Cheung, Mohsen Mirkhalaf
Summary: The aim of this study is to develop physics-based models and establish a structure-property relationship for short fiber composites. High-fidelity full-field simulations are computationally expensive and time-consuming, so the use of artificial neural networks and transfer learning technique is proposed to solve this issue and improve modeling accuracy and efficiency.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yue Jiang, Juyoung Leem, Ashley M. Robinson, Shuai Wu, Andy H. Huynh, Dongwon Ka, Ruike Renee Zhao, Yan Xia, Xiaolin Zheng
Summary: The effect of interface engineering on the combustion and mechanical performance of high-loading B/HTPB composites was investigated in this study. It was found that both covalently bonded and nonpolar/nonpolar interfaces effectively reduced the aggregation of B particles, promoting combustion efficiency and burning rate, and enhancing the mechanical properties of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
R. Mohsenzadeh, B. H. Soudmand, A. H. Najafi, M. Fattahi, D. P. Uyen
Summary: This study examines the morphological features of nano-zeolite nanoparticles incorporated into ultra-high molecular weight polyethylene nanocomposites. The dispersion of nanoparticles within the polymer matrix was improved following nano-zeolite incorporation. The size and distribution of nanoparticles were determined through tailored histograms, and the effective elastic moduli of nanocomposites were calculated, considering interfacial effects.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Chunming Ji, Jiqiang Hu, Rene Alderliesten, Jinchuan Yang, Zhengong Zhou, Yuguo Sun, Bing Wang
Summary: This paper investigates the effect of impact damage on the fatigue behavior of CF/PEEK-titanium hybrid laminates. A fatigue life model is proposed to predict the S-N curves of the laminates based on energy dissipation approach. The energy dissipation behavior of the laminates under different experimental conditions is analyzed through post-impact fatigue tests, and the correlation between impact damage and fatigue dissipation energy is determined. The validity of the proposed model is verified through fatigue tests under different stress ratios and impact energy levels.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shaokai Hu, Ping Han, Chao Meng, Ying Yu, Shaolong Han, Haoyu Wang, Gang Wei, Zheng Gu
Summary: This study decorates MXene on the surface of carbon fiber using different bonding interactions to improve the interface adhesion and mechanical properties of carbon fiber-reinforced polymers composites (CFRPs). The results demonstrate that CFRPs reinforced by CF-c-MXene show the optimal properties, with significant improvements in impact strength and interfacial shear strength compared to the unsized carbon fiber-reinforced composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Steven U. Mamolo, Henry A. Sodano
Summary: This study demonstrates that chlorination of ANFs and oxygen plasma treatment of carbon fibers enables the formation of a chlorinated ANF (Cl-ANF) interphase, resulting in a 79.8% increase in interfacial shear strength and a 33.7% increase in short beam strength in CFRP composites. This method provides a rapid and reliable process to improve the mechanical properties of CFRPs without degrading the tensile strength of the carbon fibers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuyang Zhang, Huimin Li, Xin Liu, Yanhong Chen, Chengwei Qin, Daining Fang
Summary: Establishing a prediction model for the mechanical properties of three-dimensional tubular braided composites at different temperatures is of great significance. This study adopted a multi-scale modeling framework based on micro-computed tomography to consider the characteristics of the real yarn cross section and establish a realistic trans-scale finite element model for the composites. The predicted mechanical properties were found to be significantly affected by temperature.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shengtao Dai, Fei Yan, Jiaming Guo, Huiru Hu, Yu Liu, Liu Liu, Yuhui Ao
Summary: This study successfully synthesized a hyperbranched waterborne polyurethane sizing agent and cellulose nanocrystal modified zinc oxide nanohybrids to improve the interface and properties of carbon fiber reinforced composites. The modified composites exhibited remarkable enhancements in mechanical properties and exceptional UV resistance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Libera Vitiello, Martina Salzano de Luna, Veronica Ambrogi, Giovanni Filippone
Summary: The identification of the percolation threshold in short fiber composites is crucial for assessing material properties and biodegradation speed. In this study, an original rheological approach was used to estimate the percolation threshold of hemp and kenaf-based composites, which showed good agreement with conventional dielectric spectroscopy analyses.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
