Article
Engineering, Manufacturing
Francisco Mesquita, Steve Bucknell, Yann Leray, Stepan Lomov, Yentl Swolfs
Summary: Large amounts of data were collected on the mechanical properties of different fibers using automated testing equipment. Differences in Weibull modulus and stiffness were observed between fibers with the same nominal strength. Accurate determination of fiber strength parameters requires a high number of tests, while the stiffness of E-glass fiber was found to decrease with strain. Compliance calibration should be performed iteratively due to the non-linearity of fiber stress-strain diagrams.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
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)
Review
Construction & Building Technology
T. V. Muthukumarana, M. A. V. H. M. Arachchi, H. M. C. C. Somarathna, S. N. Raman
Summary: This paper provides an overview of carbon fiber and its characteristics, application, and properties in carbon fiber-reinforced concrete (CFRC). The variation of selected mechanical properties of CFRC with different fiber dosages compared to conventional concrete, including compressive strength, flexural strength, and splitting tensile strength, is comprehensively analyzed. The limitations of existing literature and areas for future research and development are also discussed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Composites
Andre Knopp, Gerhard Scharr
Summary: This study demonstrates that notching of z-pins significantly increases the compression strength of laminates, with different notch designs impacting the results but not affecting the Young's modulus.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Hammad Tahir, Muhammad Basit Khan, Nasir Shafiq, Dorin Radu, Marijana Hadzima Nyarko, Ahsan Waqar, Hamad R. Almujibah, Omrane Benjeddou
Summary: This study explores the application of glass fibre in concrete to improve its mechanical properties and reduce carbon emissions. It is found that adding 1.25% glass fibre to concrete yields the optimum results for mechanical strength and ultrasonic pulse velocity (UPV). The carbon footprint of concrete is positively correlated with the proportion of glass fibre.
Article
Green & Sustainable Science & Technology
Zhe Liu, Thomas A. Turner, Kok H. Wong, Stephen J. Pickering
Summary: Carbon fibre composites have the potential to lighten vehicles, but high production costs and environmental impact are obstacles. Recycled fibre could reduce costs and environmental impact, but faces challenges in mechanical performance and processing. The developed alignment process allows for high fibre content composites with competitive mechanical properties.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Composites
Neptun Yousefi, Sandra J. Fisher, Christoph Burgstaller, Milo S. P. Shaffer, Alexander Bismarck
Summary: Uncured solid bisphenol-A epoxy resins containing up to 20 wt% carbon nanotubes were prepared using melt blending in a high shear mixer to produce fine nanocomposite powders. The resulting well-dispersed nanocomposites exhibited improved mechanical properties and through-thickness electrical conductivity with intermediate CNT loadings.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Construction & Building Technology
Marta Gil Perez, Bas Rongen, Valentin Koslowski, Jan Knippers
Summary: The BUGA Fibre Pavilion, built in Germany in 2019, utilizes modular fibre-polymer composite components for its construction. An experimental design approach and structural testing were employed for the design and validation of these components.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Yifan Zhang, Farhad Aslani
Summary: The study introduces a 3DCP concrete mix based on PVA fiber and activated carbon powder, finding the optimum mix and optimizing it for enhanced flexural strength while maintaining competitive compressive strength. Anisotropy of the printed concrete structure was also studied, showing higher strengths when the filaments were perpendicular to the loading direction.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Chemistry, Physical
Daniel J. Eyckens, Filip Stojcevski, Andreas Hendlmeier, James D. Randall, David J. Hayne, Melissa K. Stanfield, Ben Newman, Filip Vukovic, Tiffany R. Walsh, Luke C. Henderson
Summary: The performance of carbon fibre reinforced polymer (CFRP) composites heavily relies on the fiber-to-matrix interactions, which include the interface and interphase for stress transfer efficiency. Manipulating the interface through surface chemistry modulation has been a key research area, with various approaches such as plasma, wet chemical, and electrochemical methods being explored. The design of molecular interactions at the interface is challenging, leading to the exploration of molecular dynamics for designing complementary interfaces in the next generation of composites.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Xinfeng Qiao, Yan Zhang, Weicheng Yang, Jian Liu, Yong Luo, Yuan Yuan
Summary: In this study, two types of carbon fibre (CF)-reinforced polydicyclopentadiene (PDCPD) composites were prepared using CF powder and cloth. The effects of CF content and curing temperature on PDCPD mechanical properties were investigated, and reinforcement mechanisms were explored microstructurally. CF cloth-reinforced PDCPD achieved a tensile strength of 405 MPa and bending strength of 213 MPa, higher than those of CF powder-reinforced PDCPD. Based on the results, PDCPD composites reinforced with CF powder can be used in automotive exterior trims, while PDCPD composites prepared using CF cloth can be used in load-bearing parts of automobiles.
Article
Multidisciplinary Sciences
Nafis Abir, Abu Bakr Siddique, Hosne Ara Begum, Md. Abdul Gafur, Ayub Nabi Khan, Md. Arif Mahmud
Summary: Gypsum plasterboards, widely used in interior decoration, can be improved by adding natural fibers like jute fiber. The aim of this study was to evaluate the impact of jute fiber on the mechanical properties of the gypsum plasterboard. Different fiber loadings were incorporated into gypsum composites, and the reinforcement of 6% fiber showed the highest tensile properties. Impact test results showed a gradually improving nature with fiber loading, and FTIR results and SEM images confirmed the mechanical bonding among crystals and between the fiber and gypsum matrix.
Article
Materials Science, Composites
Steven Lamoriniere, Mitchell P. Jones, Kingsley Ho, Gerhard Kalinka, Milo S. P. Shaffer, Alexander Bismarck
Summary: Embedding carbon fibers in CNT-PEEK powders can significantly improve the interfacial shear strength between the fiber and the matrix. The interfacial shear strength is negatively correlated with the fiber length, indicating brittle fracture at the fiber-matrix interface. The pulled out carbon fibers are still coated with the matrix, indicating strong adhesion at the interface.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Matthew Bondy, Pouya Mohammadkhani, John Magliaro, William Altenhof
Summary: Compression molded direct compounded carbon fiber D-LFT was evaluated under different strain rates using various tests. The results showed that both the specimen size and the rate had an impact on the material's properties. Furthermore, the behavior of the material under high-speed impact differed from that under quasi-static loading, as observed in the ISO 6603-2 puncture tests.
Review
Engineering, Aerospace
Ming Li, Hengyi Zhu, Changliang Lai, Wenyi Bao, Han Han, Renbang Lin, Weiping He, Hualin Fan
Summary: This article introduces the application of carbon fiber reinforced composite lattice cylindrical shells in lightweight structural designs. The configurations of three typical lattice structures are demonstrated, and their performance under compression and vibration is discussed. Non-destructive methods and failure theories are also presented to predict the mechanical properties and failure loads of the shells.
PROGRESS IN AEROSPACE SCIENCES
(2022)
Article
Architecture
Sehabettin Ozturk, Alemdar Bayraktar, Emin Hokelekli, Ashraf Ashour
INTERNATIONAL JOURNAL OF ARCHITECTURAL HERITAGE
(2020)
Review
Engineering, Multidisciplinary
Wei Zhang, Qiaofeng Zheng, Ashraf Ashour, Baoguo Han
COMPOSITES PART B-ENGINEERING
(2020)
Article
Construction & Building Technology
Xinyue Wang, Sufen Dong, Ashraf Ashour, Wei Zhang, Baoguo Han
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Mechanics
Hanady Almahmood, Ashraf Ashour, Therese Sheehan
COMPOSITE STRUCTURES
(2020)
Article
Construction & Building Technology
Soner Guler, Zehra Funda Turkmenoglu, Ashraf Ashour
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Engineering, Manufacturing
Sufen Dong, Yanlei Wang, Ashraf Ashour, Baoguo Han, Jinping Ou
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2020)
Article
Construction & Building Technology
Xinyue Wang, Qiaofeng Zheng, Sufen Dong, Ashraf Ashour, Baoguo Han
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Jialiang Wang, Sufen Dong, Chunsheng Zhou, Ashraf Ashour, Baoguo Han
Summary: The pore structure of reactive powder concrete (RPC) with nanofillers is closely related to the dispersion quality, content level, and internal structure of nanofillers. Nanofillers, including zero-dimensional nanoparticles, one-dimensional nanotubes, and two-dimensional nanosheets, have been found to reduce the porosity of RPC and cause shrinkage of gel pores and fine capillary pores. Among the different types of nanofillers, one-dimensional nanotubes are most effective in reducing porosity, while zero-dimensional nanoparticles have a more pronounced impact on pore size reduction. The effect of nanofillers on the pore structure of RPC is mainly attributed to the conversion of pore water inside C-S-H gel, inducing reorganization of gel structure.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Engineering, Mechanical
Sufen Dong, Yanlei Wang, Ashraf Ashour, Baoguo Han, Jinping Ou
Summary: The addition of only 0.5% SSWs into RPC significantly enhances its fatigue life and energy dissipation capacity, while also increasing the fatigue limit strength at 50% failure probability to 76.6% of static uniaxial compressive strength. These improvements are mainly attributed to the effects of SSWs on the microstructure of RPC, including enhancing compactness, inhibiting crack initiation, and the ability to transform a single main crack into multiple micro cracks.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Construction & Building Technology
Guerkan Yildirim, Anil Kul, Emircan Ozcelikci, Mustafa Sahmaran, Alper Aldemir, Diogo Figueira, Ashraf Ashour
Summary: This study focused on developing alkali-activated binders produced from mixed construction and demolition waste-based masonry units and demonstrated that these materials can achieve high compressive strengths with optimized design parameters. Hollow bricks seemed to contribute more to compressive strength, and the main reaction products were N-A-S-H gels containing different zeolitic polytypes.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Manufacturing
Sufen Dong, Danna Wang, Ashraf Ashour, Baoguo Han, Jinping Ou
Summary: Nickel-plated carbon nanotubes (Ni-CNTs) with different aspect ratios significantly impact the mechanical properties of reactive powder concrete (RPC). Incorporating Ni-CNTs with aspect ratio of 1000 enhances compressive strength, while aspect ratio of 125 improves flexural strength, and aspect ratio of 1500 increases toughness through better dispersibility and pining effect of nickel coating.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Review
Engineering, Civil
Diogo Figueira, Ashraf Ashour, Gurkan Yildirim, Alper Aldemir, Mustafa Sahmaran
Summary: Design for demountability/deconstruction of reinforced concrete structures facilitates future reuse of elements, reduces embodied energy, and retains asset value for clients. While progress has been made in this area, dry connections between structural elements still require further development.
Article
Engineering, Civil
Wen-Jie Ge, Jia-wei Zhu, Ashraf Ashour, Zhong-Ping Yang, Xiao-ning Cai, Shan Yao, Wei-Hua Yan, Da-Fu Cao, Wei-gang Lu
Summary: This study investigates the performance of concrete columns reinforced with steel fiber-reinforced polymer composite bars (SFCBs) under chloride corrosion. The results show that SFCBs can effectively reduce deflection and crack width and enhance the load capacity of the columns.
JOURNAL OF COMPOSITES FOR CONSTRUCTION
(2022)
Review
Construction & Building Technology
Liangsheng Qiu, Sufen Dong, Ashraf Ashour, Baoguo Han
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Engineering, Civil
Alemdar Bayraktar, Emin Hokelekli, Meral Halifeoglu, Zulfikar Halifeoglu, Ashraf Ashour
EARTHQUAKES AND STRUCTURES
(2020)
Article
Engineering, Multidisciplinary
Keyu Zhu, Xitao Zheng, Jing Peng, Jiaming Sun, Ruilin Huang, Leilei Yan
Summary: This paper discusses the influence of multiple impacts on the compression strength of honeycomb sandwich structures with composite face sheets. It is found that the size of the impactor affects the turning point of the compression strength. Additionally, high impact energy leads to damage in the bottom face sheet and reduces the overall compression strength.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Danqian Wang, Yanfei Yue, Jueshi Qian
Summary: Magnesium Potassium Phosphate Cement (MKPC) as a binder for steel rebars shows improved corrosion resistance when subjected to carbonation, due to the increase in pH and the formation of a more protective oxide film.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Zhibin Li, Wenyu Wang, Pengcheng Xue, Xingyu Wei, Jian Xiong
Summary: This work proposes a design approach and manufacturing method for carbon fiber reinforced plastic (CFRP) corrugated sandwich truncated cones (CSTC) to improve their anti-debonding ability and ensure reliability. The study establishes theoretical models for CSTCs' stiffness and failure modes, which are verified through experiments and finite element analysis (FEA). The research reveals the effect of geometric parameters on failure modes and performs an optimal design for CSTC structures. The findings have significant implications for the design and application of lightweight CSTCs in constructions, such as launch vehicle adapters.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
E. Mofakhami, L. Gervat, B. Fayolle, G. Miquelard-Garnier, C. Ovalle, L. Laiarinandrasana
Summary: This study investigates the effects of fibre concentration on the mechanical response of welded glass-fibre-reinforced polypropylene (GF-PP). Experimental observations reveal a significant reduction in weld ratio, up to 60%, indicating a decreased strength compared to the bulk material. Increasing fibre content in the welded material results in a decrease in stress at break and strain at the maximum stress. The use of DIC technique and X-ray microtomography further confirms the localized strain amplification in the welded zone due to the significant increase in fibre density.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Johnny Jakobsen, Benny Endelt, Fahimeh Shakibapour
Summary: This study proposes a new bolted/pinned joining method for composite applications, which improves load transfer by introducing a patch-type reinforcement. Experimental results demonstrate significant improvements in both static and fatigue load conditions compared to existing methods. Finite element simulations highlight the advantage of this method, as it creates a more efficient load-transferring mechanism through different stress distributions.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Renil Thomas Kidangan, Sreedhar Unnikrishnakurup, C. Krishnamurthy, Krishnan Balasubramaniam
Summary: The induction heating process can accurately identify fiber orientation and stacking order, making it a valuable tool for large-area inspection and quality control in manufacturing fiber-reinforced composites.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Sungjun Hwang, Yousoo Han, Douglas J. Gardner
Summary: Bleached Kraft pulp, unbleached Kraft pulp, and old corrugated cardboard pulp are suitable for producing cellulose nanofibril suspensions. Spray drying is a fast, simple, cost-effective, and scalable drying method. Spray-dried cellulose nanofibrils can be used as reinforcing materials in polypropylene matrices. The particle size of cellulose nanofibrils affects the material properties.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mehdi Mahdavi, Abbas Zolfaghari
Summary: This study aims to improve the recovery forces of shape memory polymers (SMPs) through material extrusion additive manufacturing. By using glass fiber (GF) as reinforcement and manufacturing multi-layer composite specimens, it was found that PLA with 6.62% GF exhibited the best recovery force, which was further optimized through annealing heat treatment.
COMPOSITES PART B-ENGINEERING
(2024)
Review
Engineering, Multidisciplinary
Xiang Ao, Antonio Vazquez-Lopez, Davide Mocerino, Carlos Gonzalez, De-Yi Wang
Summary: The vulnerability of natural fibers to heat and fire poses a significant challenge for their substitution of traditional fiber reinforcements in composite materials. Natural fiber/polymer composites (NFCs) are regarded as potential candidates for engineering applications due to their environmental friendliness and low-impact sourcing. Thus, appropriate approaches need to be implemented to enhance the fire safety of NFCs. This review summarizes and discusses the latest understanding of flammability and thermal properties of natural fibers, with a special focus on their interaction with polymer matrix in fire behavior. Additionally, the latest developments in flame-retardant approaches for NFCs are reviewed, covering both flame retardancy and fire structural integrity. Finally, future prospects and perspectives on fire safety of NFCs are proposed, providing insights into further advancements of NFCs.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Cheng Wang, Siqi Huo, Guofeng Ye, Bingtao Wang, Zhenghong Guo, Qi Zhang, Pingan Song, Hao Wang, Zhitian Liu
Summary: The demand for multifunctional, transparent epoxy resin with superior dielectric, mechanical, and fire-safety performances is increasing in modern industries. Researchers have developed an epoxidized, phosphaphenanthrene-containing poly(styrene butadiene styrene) (ESD) for advanced fire-safe epoxy resin, which maintains high transparency and improves UV-blocking property. The addition of 10 wt% ESD results in improved mechanical properties, decreased dielectric constant and loss, and outperformance compared to other fire-safe epoxy resins. This research provides an effective method for developing multifunctional flame-retardant epoxy resin.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Bo Pang, Heping Zheng, Zuquan Jin, Dongshuai Hou, Yunsheng Zhang, Xiaoyun Song, Yanan Sun, Zhiyong Liu, Wei She, Lin Yang, Mengyuan Li
Summary: This study develops an internal superhydrophobic material (ISM) using waste denitrification fly ash, which maintains stable hydrophobicity under harsh conditions of use and does not rely on expensive fluor-based surface modifications. The synthesized ISM has excellent matrix strength, strong waterproof properties, and retains superhydrophobicity even at damaged or friction interfaces.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Meirbek Mussatayev, Qiuji Yi, Mark Fitzgerald, Vincent K. Maes, Paul Wilcox, Robert Hughes
Summary: Real-time monitoring of carbon fibre composites during Automated Fibre Placement (AFP) manufacturing remains a challenge for non-destructive evaluation (NDE) techniques. This study designed a directional eddy-current (EC) probe to evaluate the detectability of out-of-plane wrinkles. Experimental evaluations and finite element modeling were conducted to better understand the relationship between eddy-current density and defect detection. The findings suggest that the probe configuration with an asymmetric driver coil and differential pickup coils shows the best capability for wrinkle detection.
COMPOSITES PART B-ENGINEERING
(2024)
