Article
Polymer Science
Pooria Khalili, Mikael Skrifvars, Ahmet Semih Erturk
Summary: The mechanical properties of regenerated cellulose fabric-reinforced composite were studied, showing higher tensile strength and ductility compared to natural fibre counterparts. Simulation was used to predict the behavior of the bio-composite, including modeling the structural behavior of a car door panel.
Article
Mechanics
Felice Rubino, Hetal Parmar, Tommaso Mancia, Pierpaolo Carlone
Summary: A glass fiber/polypropylene semi-impregnated lamina was added to improve the weldability of an epoxy laminate. Ultrasonic welding of the hybrid composite was performed with varying welding parameters, resulting in different lap-shear strengths and weld interface qualities. The welding time had a significant influence on the intermixing of the thermoplastic layer and the formation of a strong weld area, while the amplitude and pressure mainly affected the power absorption and overall welding performance.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Manufacturing
Wencai Li, Harry Frederick, Genevieve Palardy
Summary: This study examines the use of MWCNT/PP films for ultrasonic welding and damage detection, finding that films with 25% MWCNT can decrease the lap shear strength of welded joints by up to 39%, but they show potential for damage detection.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Construction & Building Technology
Siddhartha Arya, Ritesh Kumar, Shakti Chauhan, Bhushan U. Kelkar
Summary: This study aimed to prepare thermoplastic based hybrid wood veneer composite panels using bamboo fiber reinforced thermoplastic (BPC) and Melia dubia wood veneers. The effect of polymer type (PP, HDPE, PBAT) and bamboo fiber content on the properties of the plywood was investigated. Plywood prepared with BPC showed superior mechanical properties, with improved flexural strength and interfacial adhesion between BPC and wood veneers.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Chemical
Kang Xu, Yulei Gao, Xiaomeng Zhang, Zhonghao Li, Shasha Song, Yiqiang Wu, Xianjun Li, Jianxiong Lu
Summary: Increasing drying temperature can decrease the hygroscopicity and improve the mechanical performance of MUF resin-impregnated wood, but it may also lead to increased brittleness after high-temperature treatment.
Article
Engineering, Multidisciplinary
Machar Devine, Ankur Bajpai, Winifred Obande, Conchur M. O. Bradaigh, Dipa Ray
Summary: The increasing use of polymer composite materials requires the development of recyclable alternatives or new recycling techniques. One promising recyclable alternative is the room temperature infusible acrylic resins commercially known as Elium & REG;. This study investigates the long-term immersion of these materials in seawater and compares their mechanical properties and fracture behavior to traditional epoxy composites.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Polymer Science
Raffaele Ciardiello, Dario Fiumarella, Giovanni Belingardi
Summary: The mechanical properties of glass-fibre-reinforced composite (GFRP) plates made of twill fabric and a thermoplastic recyclable infusion resin were evaluated through mechanical testing. The results showed that the considered thermoplastic resin, ELIUM®, can be infused using properly tuned vacuum techniques. X-ray microtomography analysis revealed that the produced laminates were defect-free, different from what was reported in the literature. The mechanical properties of the GFRP laminates were enhanced with higher vacuum pressures and were not influenced by degassing the resin before infusion.
Article
Chemistry, Applied
Aurelien Hermann, Sylvain Giljean, Marie-Jose Pac, Cyril Marsiquet, Dominique Burr, Veronic Landry
Summary: The durability and aesthetic properties of wood flooring rely on the properties of the coating applied on its surface. UV-curable coatings are often preferred for flat surfaces like hardwood flooring due to their fast-curing speed, high crosslinking density, and durability. This study aims to analyze the influence of basecoat composition and thickness on the mechanical behavior of a UV-curable multilayered wood finishing system.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Composites
Haithem Bel Haj Frej, Romain Leger, Didier Perrin, Patrick Ienny
Summary: This study investigates and compares the effects of hydrothermal aging on carbon fibre / Elium (TM) thermoplastic composite and on carbon fibre / vinylester thermoset composite for marine application. The results show that both materials exhibit changes in mechanical properties after aging, but have different diffusion behaviors.
APPLIED COMPOSITE MATERIALS
(2021)
Article
Materials Science, Composites
Ajay Kumar Kadiyala, Thomas O'Shaughnessy, Stephen Lee, Alexandre Portela, Anthony Comer
Summary: This research explores the use of dry fibre placement and vacuum assisted liquid resin infusion to fabricate thermoplastic acrylic resin composites, and investigates the influence of water immersion on their performance. The study examines the thermomechanical behavior of aged and unaged samples, as well as changes in flexural strength and interlaminar shear strength.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Composites
Qiheng Tang, Miao Zou, Shuangyong Wang, Lu Fang, Wenjing Guo
Summary: This study presents a method to manufacture high-performance wood fiber-reinforced composites with high mechanical properties, water stability, and aging resistance. By utilizing hot-pressing and resin curing reaction, the wood fibers are reinforced, resulting in composites with superior performance.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
Orkun Ersoy, Sinan Fidan, Harun Kose, Dilek Guler, Omer ozdover
Summary: This study investigated the effect of CaCO3 particle size on the scratch behavior of rapid alkyd-based wood coatings. Results showed that finer-grained CaCO3 particles experienced plastic plowing-type deformation, displaying high scratch resistance, while coatings using coarser-grained CaCO3 experienced more extensive plastic deformation due to weaker filler-polymer interface and breakage of larger coating pieces from the surface.
Article
Forestry
Lei Han, Andreja Kutnar, Jose Couceiro, Dick Sandberg
Summary: The study aims to investigate the behavior of densified Scots pine timber under long-term loading, finding that THM densification combined with resin impregnation or thermal modification can reduce the creep of timber, improving its performance under long-term bending loads.
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.
Article
Polymer Science
Mingli Liu, Xiangrui Li, Zexiu Qin, Wenbo Liu, Chunfeng Li, Lei Le
Summary: This paper introduces a method of modifying fast-growing poplar wood by impregnating it with silica sol/MG resin and explores its effects on the physical, mechanical, and thermal properties of the wood. The study found that the composite modifier filled the cell structure of the wood and formed chemical cross-links, resulting in improved properties and thermal stability.
Article
Materials Science, Paper & Wood
Ferhat Ozdemir, Nadir Ayrilmis, Elif Yurttas
Summary: This study focused on the potential use of hazelnut husk (HH) flour as filler in PLA biocomposite films. The tensile strength of the biocomposites decreased with increasing content of HH flour, mainly due to the weak interfacial bond between HH flour with higher polar surface and PLA with lower polar surface. Additionally, the hydrophilic nature of HH led to fiber agglomerations, resulting in lower tensile strength, especially at high filler loadings.
WOOD MATERIAL SCIENCE & ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Ismail Ezzaraa, Nadir Ayrilmis, Manja Kitek Kuzman, Soufiane Belhouideg, Jamaa Bengourram
Summary: Analytic modeling of 3D printed natural fiber-reinforced composites is still in its early stages, with mechanical properties playing a crucial role in defining the structural behavior of the material. The elastic properties of wood/PLA composites were predicted using a micromechanical approach and validated through experimental data, showing a good correlation with the Mori-Tanaka model. Furthermore, a parametric study revealed that the elastic properties of the composites were strongly influenced by fiber content, fiber shape, and porosity rate.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Paper & Wood
Behzad Kord, Farnaz Movahedi, Laleh Adlnasab, Nadir Ayrilmis
Summary: This study investigated the influence of novel scavengers on particleboards produced with urea-formaldehyde resin, finding that the formaldehyde emission decreased significantly with increased scavenger content. Although the physical and mechanical properties of the particleboards decreased with scavenger content, they still met the requirements for interior fitments.
WOOD MATERIAL SCIENCE & ENGINEERING
(2022)
Article
Materials Science, Paper & Wood
Seyyed Khalil Hosseinihashemi, Farhad Arwinfar, Abdollah Najafi, Ferhat Ozdemir, Nadir Ayrilmis, Abbas Tamjidi
Summary: The long-term hygroscopic thickness swelling rate of polypropylene composites filled with thermally treated wood flour was investigated. The results showed that the thickness swelling of the composites decreased with increasing time and temperature of thermal treatment. The study also found that the swelling rate of the composites was influenced by the time and temperature of thermal treatment.
Review
Engineering, Chemical
Nadir Ayrilmis
Summary: Powder coatings, although relatively new to the furniture industry, have seen a rapid increase in their application on wood-based panels due to developments in low-temperature curing powders. Government regulations on toxic chemicals in solvents have also pushed furniture producers to use more environmentally friendly coating systems, with powder coatings offering non-toxic and cost-effective advantages.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2022)
Article
Materials Science, Paper & Wood
Elif Yurttas, Nurten Tetik, Nadir Ayrilmis
Summary: This study produced biodegradable biofilaments for 3D printing using a polylactic acid (PLA) matrix. The filaments were modified with wood flour and silver nanoparticles, and exhibited antibacterial and antifungal properties. These biocomposites are suitable for biomedical and food industrial applications.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Review
Biochemistry & Molecular Biology
Ali Dorieh, Nadir Ayrilmis, Mohammad Farajollah Pour, Sogand Ghafari Movahed, Mohammad Valizadeh Kiamahalleh, Mohammad Hassan Shahavi, Hamid Hatefnia, Meysam Mehdinia
Summary: In recent years, there has been a growing interest in utilizing natural fibers as green reinforcing agents for improving composite materials. Cellulose and lignin materials have attracted global attention due to their abundant resources, renewability, low cost, and excellent properties. This research provides a comprehensive survey of the literature on phenolic composites reinforced with nanocellulose and nanolignin, showing that these materials have a remarkable effect on improving the overall performance of the composites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Paper & Wood
Nadir Ayrilmis, Esra Yildiz
Summary: The potential use of Chaste tree as a filler in thermoplastic composites was investigated, and it was found that the addition of Chaste tree wood increased the tensile strength and bending strength of the composites. Chaste tree wood at a content of 30-40% can be effectively used for semi-building applications.
Article
Forestry
Ismail Ezzaraa, Nadir Ayrilmis, Mohamed Abouelmajd, Manja Kitek Kuzman, Ahmed Bahlaoui, Ismail Arroub, Jamaa Bengourram, Manuel Lagache, Soufiane Belhouideg
Summary: This study presents a numerical homogenization methodology to investigate the elastic properties of wood-polymer composites produced through fused deposition modeling (FDM). Various parameters such as wood volume fraction, aspect ratio, and internal porosity were investigated. The results were validated against analytical models and experimental data, showing a satisfactory agreement and confirming the effectiveness of the proposed approach.
Article
Materials Science, Paper & Wood
Anton Michailovich Kuzmin, Nadir Ayrilmis, Ferhat Ozdemir, Gurdal Kanat
Summary: This study investigated the tensile properties and thermal behavior of HDPE composites filled with different particle size and content of used beverage cartons (Tetra Pak® cartons). The smallest particle size of the used beverage carton showed the highest tensile strength and modulus. The tensile strength decreased with increasing filler content, while the modulus increased. Additionally, the filler size and content influenced the thermal behavior of the specimens. The melting temperature and enthalpy values of HDPE decreased with increasing Tetra Pak® content, and the degree of crystallinity decreased compared to pure HDPE.
Article
Environmental Sciences
Gunay Ozbay, Nadir Ayrilmis, Muhammad Syarhabil Ahmad
Summary: Olive oil mill wastewater (OMW), a by-product of the olive oil industry, is causing massive environmental problems when not properly disposed of. In this experimental study, OMW was used as a substitute for clean water in the production of formaldehyde solution. The effect of OMW substitution on the properties of phenol-formaldehyde (PF) resin was analyzed using FT-IR and TGA techniques.
ENVIRONMENTAL SCIENCES EUROPE
(2023)
Article
Engineering, Chemical
Alireza Ashori, Nadir Ayrilmis, Vahid Heydari
Summary: This study successfully fabricated plywood boards using virgin and recycled high-density polyethylene (vHDPE and rHDPE) films as formaldehyde-free adhesives, and achieved improved physical and mechanical properties by using PE-g-MA as a coupling agent. PE-g-MA played a crucial role in enhancing the interfacial bonding ability and stress propagation. The properties of plywood boards made with rHDPE were significantly improved, although the presence of impurities in the recycled film made the coupling agent less effective.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2023)
Article
Materials Science, Paper & Wood
Alireza Ashori, Vahid Heydari, Nadir Ayrilmis
Summary: The present study aimed to minimize or eliminate the harmful effects of urea-formaldehyde (UF) resin by using recycled high-density polyethylene (HDPE) as a nontoxic adhesive. The results showed that HDPE films provided mechanical properties comparable to UF adhesive, even with lower adhesive content and pressing time. The optimum conditions were an HDPE loading of 240 g/m(2), a hot-pressing temperature of 160°C, and a hot-pressing time of 5 min. This study confirmed the potential of recycled HDPE as a promising adhesive for environmentally-friendly plywood manufacturing.
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Elif Yurttas, Nadir Ayrilmis
Summary: This study investigates the effects of thermal treatment and silver nanoparticles on the mechanical and thermal properties of additively manufactured wood/PLA specimens. The results show that thermal treatment improves the interfacial adhesion between wood and polymer matrix, leading to enhanced mechanical properties. Additionally, the addition of silver nanoparticles contributes to improved mechanical performance and is more compatible with thermally treated wood.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Ganesan Karuppiah, Kailasanathan Chidambara Kuttalam, Nadir Ayrilmis, Rajini Nagarajan, M. P. Indira Devi, Sivasubramanian Palanisamy, Carlo Santulli
Summary: The wear performance of jute/coir unsaturated polyester composites filled with eggshell powder and nanoclay was examined. A Taguchi study based on grey relational analysis was conducted to evaluate the material's possibilities. The results showed that the material performed well under high load, low speed, and long sliding distance conditions. Speed was identified as the most critical parameter, and the presence and interfacial adhesion of the fillers hindered ploughing formation during the wear test.
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)
