Article
Engineering, Manufacturing
Go Yamamoto, Keita Koizumi, Takahiro Nakamura, Noriyuki Hirano, Tomonaga Okabe
Summary: This study experimentally investigated the factors governing the tensile strength of unidirectional carbon fiber reinforced plastic (CFRP) composites, focusing on the mechanical characteristics of the epoxy matrix. Correlation analysis revealed a reasonable correlation between the matrix crack tip opening displacement (CTOD) and the stress concentration factor (SCF), suggesting CTOD is an important factor to consider for developing stronger CFRP composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Composites
S. Gomarasca, D. M. J. Peeters, B. Atli-Veltin, C. Dransfeld
Summary: This study introduces a new methodology for characterizing unidirectional composites using real material datasets acquired via X-ray computed tomography. The methodology can describe and quantify complex fiber organization in unidirectional composites, highlighting micro- and mesoscopic features, and providing important insights for future research.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Minhang Chen, Tingting Yin, Peng Fu, Haibo She, Xiaomeng Zhang, Wei Zhao, Zhe Cui, Xinchang Pang, Qingxiang Zhao, Minying Liu
Summary: This study successfully explored novel polyamide 12 (PA12) based template composites with significantly improved localized and unidirectional thermally conductive property achieved through selectively distributed boron nitride (BN). The experiment and simulated results revealed that the enhanced thermally conductive property was attributed to the selectively distributed BN, enabling precise and controllable heat dissipation for high-frequency and high-speed electronic devices.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Keiji Ogi, Shigeki Yashiro
Summary: This study quantitatively investigated the impact of fiber cut angle on the shearing strength of carbon-fiber-reinforced thermoplastic laminates, using experiments, mechanics models, and finite element analysis. The study revealed the predictions made by the models and provided insights into the effect of cut angle on shearing strength.
COMPOSITES PART B-ENGINEERING
(2021)
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
Materials Science, Multidisciplinary
Zheqi Peng, Xin Wang, Lining Ding, Zhishen Wu
Summary: This study adopts a bundle-based concept to model unidirectional hybrid fiber-reinforced polymer composites and conducts a parametric study and optimization framework development. The results show that a dispersed arrangement of fiber bundles can delay damage propagation and enhance overall performance.
MATERIALS & DESIGN
(2022)
Article
Engineering, Multidisciplinary
Bin Chen, Jiawei Gong, Wei Huang, Ning Gao, Cong Deng, Xueqin Gao
Summary: Inspired by the clam-shell structure of pearls, a thermally conductive high-density polyethylene (HDPE) reinforced with two-dimensional boron nitride (BN) filler was successfully fabricated using a rotational shear system. The presence of a shish-kebab structure and aligned BN (002) plane resulted in an increased Vicat softening temperature of 107.9 degrees C, demonstrating excellent heat resistance. The composite with 35 vol% BN loading exhibited the optimal thermal conductivity of 1.26 W/mK and a tensile strength of 40 MPa. This study has developed HDPE/BN composites with effective thermal dissipation and higher service temperature, providing longer service life and reduced material replacement frequency under extreme operating conditions.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Mechanics
C. Breite, A. Melnikov, A. Turon, A. B. de Morais, C. Le Bourlot, E. Maire, E. Schoberl, F. Otero, F. Mesquita, I Sinclair, J. Costa, J. A. Mayugo, J. M. Guerrero, L. Gorbatikh, L. N. McCartney, M. Hajikazemi, M. Mehdikhani, M. N. Mavrogordato, P. P. Camanho, R. Tavares, S. M. Spearing, S. Lomov, S. Pimenta, W. Van Paepegem, Y. Swolfs
Summary: This study experimentally validated blind predictions of six state-of-the-art models on the longitudinal tensile failure of unidirectional fibre-reinforced composites. It was found that models without major conservative assumptions regarding stress redistributions around fibre breaks tend to overestimate failure strains and strengths, while models with at least one such assumption showed better agreement for these properties. The study also revealed that all models failed to accurately predict the development of fibre break (and cluster).
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Multidisciplinary
Chang-Bin Oh, Byeong-Joo Kim, Man Young Lee
Summary: A unidirectional carbon fiber-reinforced composite with excellent interlaminar fracture toughness (ILFT) was achieved by treating polyethylene-terephthalate (PET) based thermoplastic veils with carbon nanofiber (CNF)-modified coupling agents. The multiscale reinforcement mechanisms, including microfibers and chemical bonding, significantly improved the mechanical properties of the composites.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Manufacturing
Dou Zhang, Liwu Liu, Xin Lan, Fengfeng Li, Yanju Liu, Jinsong Leng
Summary: A comprehensive and detailed experimental study was conducted on shape memory polymer composites (SMPCs) with different reinforcements, thicknesses, fibre volume fractions, and distributions. The results showed temperature-dependent mechanical properties. Cyclic loading-unloading tests were performed to investigate softening and reusable characteristics. The fibre postbuckling behavior for bending deformation combined geometrical and material nonlinearities, while nonlinearity in transverse tension was solely due to material responses. Energy properties were dependent on fibre volume fraction and strain amplitude, and stiffness was sensitive to fibre clustering. The focus of this work was on the nonlinear and reusable responses of SMPCs, which have applications in aerospace deployable mechanisms and damage analysis.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Xiaochang Duan, Hongwei Yuan, Wei Tang, Jingjing He, Xuefei Guan
Summary: This study develops an engineering prediction model for stress relaxation of polymer composites, allowing the prediction of stress relaxation behavior under different temperatures and strains. The model parameters are established based on stress relaxation data, and the effectiveness of the model is verified and compared with other commonly used models. A user subroutine is also developed for practical applications.
Article
Engineering, Manufacturing
Sarah A. Elnekhaily, Ramesh Talreja
Summary: This study uses computational simulation to investigate the early stage of crack formation in unidirectional composites under transverse tension with micro voids in the matrix. The focus is on brittle cavitation leading to fiber/matrix debonding, followed by debond crack growth and kink-out into the matrix. The study considers nonuniform fiber distribution and a uniform hexagonal fiber pattern in the cross section of the composite with voids near the initiated cracks. The results show that debond growth and kink-out are affected by circular voids in close proximity, especially when their diameter is a significant fraction of the fiber diameter.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Multidisciplinary
Francisco Mesquita, Arsen Melnikov, Ashok Rajpurohit, Vicky Singery, Phillipe Sanial, Stepan Lomov, Yentl Swolfs
Summary: UD non-crimp fabric (NCF) carbon/epoxy composites were tested to evaluate the impact of stitching on the tensile failure strain. The results showed that the stitched layers had the same failure strain as the non-stitched layers, while removing the stitches resulted in a lower failure strain.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Polymer Science
Boyao Wang, Bin He, Zhanwen Wang, Shengli Qi, Daijun Zhang, Guofeng Tian, Dezhen Wu
Summary: The hybrid fiber-reinforced composites showed nearly 50% increment in Charpy impact strength and significantly improved flexural performance compared with carbon fiber reinforcement alone. The flexural properties were greatly affected by the stacking sequence, with specimens containing carbon fiber in the compressive sides having higher flexural strength and those with a sandwich-like structure displaying a higher flexural modulus.
Article
Materials Science, Composites
Shengdao Wang, Yanchao Yang, Yongfeng Mu, Jiyao Shi, Xin Cong, Jiashuang Luan, Guibin Wang
Summary: This study successfully improved the weak interfacial strength between carbon fiber and PEEK matrix in carbon fiber/PEEK composites by introducing chemical bonds, resulting in increased interfacial shear strength and interlaminar shear strength.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Su Bai, Mitchell P. Jones, Tristan Pech de Laclause, Qixiang Jiang, Andreas Mautner, Yentl Swolfs, Kingsley Ho, Graeme Knox, Alexander Bismarck
Summary: This study investigates the adhesion between carbon fibers and rubber-fiber adhesive resorcinol-formaldehyde-latex (RFL), and finds that the surface oxygen content and surface energy of carbon fibers have a significant influence on the adhesion. Single fiber fragmentation tests can rank the adhesion behavior, but accurate interfacial shear strength values cannot be obtained due to statistical limitations. Commercial T700GC-31E carbon fibers are identified as candidates for improving fiber-matrix adhesion.
COMPOSITE INTERFACES
(2022)
Article
Engineering, Multidisciplinary
Francisco Mesquita, Arsen Melnikov, Ashok Rajpurohit, Vicky Singery, Phillipe Sanial, Stepan Lomov, Yentl Swolfs
Summary: UD non-crimp fabric (NCF) carbon/epoxy composites were tested to evaluate the impact of stitching on the tensile failure strain. The results showed that the stitched layers had the same failure strain as the non-stitched layers, while removing the stitches resulted in a lower failure strain.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Composites
Sina AhmadvashAghbash, Babak Fazlali, Mahoor Mehdikhani, Yentl Swolfs
Summary: This study proposes a novel approach using finite element modeling to comprehensively simulate the stress redistribution around a broken fiber in unidirectional composites. The parametric study reveals that factors such as friction coefficient and interfacial fracture toughness significantly affect the stress concentration factor of intact fibers. Introducing interfacial debonding reduces the overpredictions of stress concentration factor.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Francisco Mesquita, Christian Breite, Stepan V. Lomov, Yentl Swolfs
Summary: This study proposed a methodology for retrieving the Weibull parameters of fiber strength using in-situ synchrotron computed tomography tensile testing. Different methods were used to estimate the parameters, and the results showed that non-linear regression had a better correlation with the observed fiber strength probability. The study also found that the strength distribution of fibers can vary within a given material batch.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Jose Antonio Butenegro, Mohsen Bahrami, Yentl Swolfs, Jan Ivens, Miguel Angel Martinez, Juana Abenojar
Summary: The study focused on the fiber distribution and mechanical, dynamic, and thermomechanical properties of composites manufactured using hot pressing. The viability of recycling and reuse route for preventing the deterioration of carbon fibers by employing polyamides and mechanically recycled carbon fiber-reinforced polymers as reinforcement was illustrated.
Article
Materials Science, Composites
M. Alves, L. M. Martulli, M. Kerschbaum, Y. Swolfs, S. V. Lomov Sw, S. Pimenta
Summary: This work presents a novel 3D approach for the numerical modelling of TBDCs, which generates 3D orientation tensors by adding a stochastic component and predicts the failure initiation of the materials using a physically based 3D failure criterion. Experimental results demonstrate that the proposed approach accurately predicts the mechanical properties of the materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Caglar Mutlu, Baris Sabuncuoglu, F. Suat Kadioglu, Yentl Swolfs
Summary: This paper analyzes the dynamic stress concentration factors (SCF) around a fiber break in unidirectional carbon fiber/epoxy composites. 3D finite element models were used to study the evolution of stress concentrations over time and position. The results show that dynamic effects lead to higher SCFs and a larger effective area around the broken fiber.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Article
Multidisciplinary Sciences
Valter Carvelli, Stepan V. Lomov, Sergei B. Sapozhnikov, Christian Breite, Yentl Swolfs
Summary: This paper provides an overview of the fatigue behavior of hybrid fiber-reinforced plastics and specifically reports the fatigue behavior of a quasi-isotropic pseudo-ductile all-carbon fiber interlayer hybrid composite. Experimental measurements and observations are conducted to study the damage development, and the results include fatigue life, stiffness evolution, and damage observations.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2023)
Article
Engineering, Manufacturing
E. Syerko, T. Schmidt, D. May, C. Binetruy, S. G. Advani, S. Lomov, L. Silva, S. Abaimov, N. Aissa, I. Akhatov, M. Ali, N. Asiaban, G. Broggi, J. Bruchon, B. Caglar, H. Digonnet, J. Dittmann, S. Drapier, A. Endruweit, A. Guilloux, R. Kandinskii, A. Leygue, B. Mahato, P. Martinez-Lera, M. Matveev, V. Michaud, P. Middendorf, N. Moulin, L. Orgeas, C. H. Park, S. Rief, M. Rouhi, I. Sergeichev, M. Shakoor, O. Shishkina, Y. Swolfs, M. Tahani, R. Umer, K. Vanclooster, R. Vorobyev
Summary: This paper presents the results of an international virtual permeability benchmark, which is a first contribution to permeability predictions for fibrous reinforcements based on real images. In this first stage, the focus was on the microscale computation of fiber bundle permeability. The scatter of the predicted axial permeability after the elimination of inconsistent results was found to be smaller (14%) than that of the transverse permeability (similar to 24%).
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Radmir Karamov, Christian Breite, Stepan V. Lomov, Ivan Sergeichev, Yentl Swolfs
Summary: The study investigates the progressive development of fibre breaks in unidirectional composite materials using in situ X-ray computed tomography. By applying super-resolution (SR) using 3D deep learning techniques, the quality of low-resolution scans is enhanced for fibre break identification. The developed approach achieves automated identification of fibre breaks with an average accuracy of 82% to 92%.
Article
Engineering, Multidisciplinary
Ruben Windey, Sina Ahmadvashaghbash, Jeroen Soete, Yentl Swolfs, Martine Wevers
Summary: 3D nanoparticles play an important role in polymer composite materials, but their nanoscale properties can only be fully utilized if they are effectively deagglomerated and uniformly distributed. Traditional dispersion methods have proven inadequate, so a study was conducted to develop an optimized ultrasonication procedure for polymer-nanoparticle systems. The study found that higher power densities achieved through sonotrode ultrasonication were necessary for complete deagglomeration, and proposed the use of ultrasound energy density as a universal scaling parameter.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Composites
Rui Guo, Johannes Stubbe, Yuhe Zhang, Christian Matthias Schleputz, Camilo Rojas Gomez, Mahoor Mehdikhani, Christian Breite, Yentl Swolfs, Pablo Villanueva-Perez
Summary: Monitoring the microstructure and damage development of fibre-reinforced composites during loading is crucial to understanding their mechanical properties. In this paper, a new pipeline based on CycleGAN and U-Net-id is established to improve the temporal and spatial resolution for the microstructural analysis of these composites. The results show that data enhanced by this pipeline can achieve similar segmentation quality as high-quality scans that take much longer to acquire.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Mechanics
S. V. Lomov, S. G. Abaimov, C. Breite, Y. Swolfs
Summary: This paper investigates the use of inequality indices in an Impregnated Fiber Bundle Model (IFBM). The study shows that the behavior of these indices in the IFBM is similar to that in the Fiber Bundle Model with Equal Load Sharing (ELS), including similar critical values for the final failure of the bundle.
MECHANICS OF COMPOSITE MATERIALS
(2023)
Article
Polymer Science
Jose Antonio Butenegro, Mohsen Bahrami, Yentl Swolfs, Jan Ivens, Miguel angel Martinez, Juana Abenojar
Summary: This study aims to incorporate mechanically recycled aerospace prepreg waste in thermoplastic composite materials to reduce environmental impact and promote the use of recycled materials. The results show that the recycled prepregs are a suitable reinforcement, enhancing reinforcement-matrix adhesion and leading to higher mechanical properties. The potential of incorporating recycled aerospace prepreg waste in thermoplastic composite materials to produce high-performance and sustainable components in the aerospace and automotive industries is demonstrated.
Article
Materials Science, Composites
Mohsen Bahrami, Jose Antonio Butenegro, Mahoor Mehdikhani, Yentl Swolfs, Juana Abenojar, Miguel Angel Martinez
Summary: Combining woven flax and carbon fibers with a polyamide 11 matrix in a hybrid biocomposite can significantly enhance the mechanical properties and impact resistance of fiber-reinforced composites.
POLYMER COMPOSITES
(2023)
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)
