Article
Materials Science, Textiles
Mohamed A. Attia, Marwa A. Abd Abd El-baky, Mostafa M. Abdelhaleem, Mohamed A. Hassan
Summary: This study conducted an experimental investigation on the mechanical performance of interlayer hybrid flax-basalt-glass woven fabrics reinforced epoxy composite laminates. The results showed that the mechanical properties of the hybrid laminates are influenced by the reinforcement combinations and plies stacking sequence. Hybridizing flax fiber with basalt and/or glass fabrics enhances the mechanical properties and controls the impact strength of the composite. The fabricated hybrids have good specific mechanical properties benefits and are suitable for lightweight load bearing structures.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Polymer Science
Manoj Kumar Gurunathan, Navasingh Rajesh Jesudoss Hynes, Omar Ali Al-Khashman, Michael Brykov, Nagasubramoniam Ganesh, Antoaneta Ene
Summary: This study examines the use of Prosopis juliflora and glass fibers as partial replacements in a hybrid composite material. The results show improved impact strength and water resistance, making it suitable for structural and automotive applications.
Article
Engineering, Mechanical
Qiang Ma, Jiangbei Song, Ting Tang, Zongwen An
Summary: This study proposes a strength degradation model based on residual stiffness degradation data to overcome the shortcomings of traditional strength modeling for GFRP composite laminates. The gradual reduction of stiffness and strength is used to describe the growth of fatigue damage, and the equivalence of damage expressed by the two degradation methods is established. The proposed model is validated using experimental data and performs better in terms of applicability and fitting accuracy compared to other models.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Materials Science, Composites
Veerappan Balasubramani, Sadayan Rajendra Boopathy, Balasubramaniam Stalin, Vijayananth Kavimani
Summary: This research focuses on the effect of stacking sequence on the mechanical behavior of laminates. The angle-ply laminate specimens were analyzed theoretically and correlated with experimental results. It was found that (60/30/60/30)(S) exhibited the highest interlaminar shear strength and transverse stiffness, as well as the highest rate of residual strength degradation.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Textiles
Zeynab Behroozi, Hooshang Nosraty, Majid Tehrani
Summary: The study found that a 45-degree stitching angle exhibited the best performance in resisting ballistic impact, with significantly higher energy absorption compared to other stitching angles. Stitching also helps reduce damage area in both front and back sides of the composites as well as inhibiting delamination.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Physical
Ricardo Cruz, Luis Correia, Aloys Dushimimana, Susana Cabral-Fonseca, Jose Sena-Cruz
Summary: The study investigated the durability and performance changes of structural epoxy adhesives and CFRP laminates under natural ageing conditions. Results showed that the glass transition temperature of epoxy adhesives increased over time while tensile properties decreased, and CFRP laminates were minimally affected by natural ageing environments. Accelerated ageing tests produced higher mechanical degradation compared to natural ageing.
Article
Polymer Science
Agustinus Purna Irawan, Paula Tjatoerwidya Anggarina, Didi Widya Utama, Najid Najid, Mohd Zulkfly Abdullah, Januar Parlaungan Siregar, Tezara Cionita, Deni Fajar Fitriyana, Jamiluddin Jaafar, Agung Efriyo Hadi, Teuku Rihayat
Summary: The investigation of hybrid, woven, natural fiber-reinforced polymer composites as a substitute reinforcement for fiber polymer composites has gained significant interest. The research found that woven rattan and glass fiber hybrid composites exhibit good mechanical properties and thermal stability, making them suitable for automotive applications.
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
Materials Science, Composites
Kawtar Lamhour, Marwane Rouway, Abdeslam Tizliouine, Lhaj El Hachemi Omari, Hayat Salhi, Omar Cherkaoui
Summary: This paper discusses the principle of converting wind energy into electrical energy using a wind turbine system, and explores methods to improve the performance of composite materials. The potential application of natural fibers as a substitute for glass fibers in enhancing the mechanical properties of composites is examined.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Materials Science, Characterization & Testing
K. Yoganandam, K. Premkumar, Vasudevan Alagumalai, Jiang Lin, Vigneshwaran Shanmugam, Oisik Das
Summary: This study investigates the puncture resistance of MWCNT/glass fibre epoxy laminate composites using different indenters and evaluates the impact of MWCNT on mechanical properties. The results provide insights into the puncture mechanisms and failure modes, guiding the design and optimization of glass fibre laminate composites.
Article
Engineering, Marine
Atizaz Hassan, Rafiullah Khan, Numan Khan, Muhammad Aamir, Danil Yurievich Pimenov, Khaled Giasin
Summary: This study focuses on the durability of composite materials under short-term seawater ageing conditions. It was found that seawater ageing significantly reduced the maximum load and fracture toughness of the composites, caused swelling and weight gain of the specimens, and increased the rate of debonding with the number of days in seawater.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Polymer Science
Majed H. Moosa, Mohamed Abu-Okail, Ahmed Abu-Oqail, Samah A. Al-Shelkamy, W. M. Shewakh, M. Abdel Ghafaar
Summary: This study explores the influence of geometric alternatives for fiber directions on the structural and tribological properties of glass and carbon fibers in polymeric composite fabrics for bushing applications. The results reveal that carbon fibers exhibit better fusion capability with epoxy resin, resulting in lower wear volume loss and friction coefficient.
Article
Materials Science, Textiles
Zulkifli Djafar, Ilyas Renreng, Miftahul Jannah
Summary: The study reveals that the number of woven ramie layers and the weight of the ramie fiber greatly impact the tensile and bending strengths of the composite. The highest strengths were observed in the five layers of woven ramie composite and the E type of ramie fiber.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Construction & Building Technology
Abhijeet Anand, Sohan Kumar Ghosh, Abhinav Omprakash Fulmali, Rajesh Kumar Prusty
Summary: This study investigates the aging process of glass fiber/epoxy (GE) composite modified by graphene oxide (GO) in sea water, finding that GO significantly hinders water absorption, improves mechanical properties, and benefits from the salinity of sea water in enhancing the characteristics of GO-GE composites.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Characterization & Testing
Mateus da Silva Batista, Linconl Araujo Teixeira, Sandra Maria da Luz
Summary: This study investigates the fatigue behavior of epoxy/sisal composites with hygrothermal exposure, focusing on their mechanical characterization and adhesion between fibers and the matrix under cyclic loading before and after aging. The results show that unidirectional NaOH-treated sisal/epoxy composites exhibit better performance, with reduced water absorption and improved tensile strength compared to untreated composites. The fiber/matrix interface plays a central role in the overall mechanical behavior of the composites.
Article
Mechanics
Andrzej Komorek, Robert Szczepaniak, Pawel Przybylek, Aneta Krzyzak, Jan Godzimirski, Marek Roskowicz, Dominika Seremak
Summary: The use of composite materials in air transport construction has been of interest for decades due to the need for minimizing weight and reducing costs. Vectran fibers, a less commonly used reinforcement fiber, have been studied for their potential applications in aircraft constructions. Research shows that adding carbon fibers can improve the impact strength and mechanical properties of Vectran fiber-reinforced composites.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Robert Szczepaniak, Grzegorz Kozun, Pawel Przybylek, Andrzej Komorek, Aneta Krzyzak, Grzegorz Woroniak
Summary: The study focused on new materials with high thermal protective properties, modified with ablative thermoprotective properties and tested under high temperatures. Experimental results showed a clear downward trend in temperature rise for hybrid composites modified with powder additives compared to samples without powder additives.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Mohamed Bakar, Wojciech Kucharczyk, Sylwester Stawarz, Wojciech Zurowski
Summary: This study investigated the ablative, thermal and dynamic mechanical properties of epoxy resin modified with nano-titanium dioxide and organomodified montmorillonite, with aramid honeycomb core as a stiffness reinforcement. The composites exhibited the best thermal protective properties with the lowest temperature of the rear surface and ablative weight loss. Dynamic mechanical thermal analyzer measurements showed that the glass transition temperature and complex modulus varied with different phase compositions at different temperatures.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Edwin Gevorkyan, Tatiana Prikhna, Ruslan Vovk, Miroslaw Rucki, Zbigniew Siemiatkowski, Wojciech Kucharczyk, Vladymir Chishkala, Leszek Chalko
Summary: This paper describes the research results on nanostructural composite ZrO2 - WC obtained with modified Field Assisted Sintering, showcasing improved mechanical properties through reduced temperature and shorter sintering time, particularly impressive results were achieved in wear resistance, outperforming market standards.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Physical
Marek Roskowicz, Jan Godzimirski, Andrzej Komorek, Michal Jasztal
Summary: This article presents simplified analytical formulas for adhesive joint strength and adhesive joint coefficient for different joint loading scenarios, and investigates the influence of adhesive layer thickness on joint strength. The tests showed that increasing the adhesive layer thickness led to a quasi-linear decrease in failure stress, and some joints displayed an optimal adhesive layer thickness for strength. The study aimed to explain the phenomenon of optimal adhesive layer thickness in certain types of adhesive joints.
Article
Chemistry, Physical
Edwin Gevorkyan, Miroslaw Rucki, Tadeusz Salacinski, Zbigniew Siemiatkowski, Volodymyr Nerubatskyi, Wojciech Kucharczyk, Jaroslaw Chrzanowski, Yuriy Gutsalenko, Miroslaw Nejman
Summary: This study investigated the fabrication and performance of binderless nanostructured tungsten carbide (WC) cutting tools, utilizing the electroconsolidation method for powder sintering. The results showed that the pure WC nanostructure had advantages such as smaller cutting edge radius and higher quality machined surface compared to other materials. The durability of the binderless nWC inserts was significantly better than traditional WC-Co cutting tools, especially at elevated cutting speeds.
Article
Chemistry, Physical
Martyna Roszowska-Jarosz, Joanna Masiewicz, Marcin Kostrzewa, Wojciech Kucharczyk, Wojciech Zurowski, Justyna Kucinska-Lipka, Pawel Przybylek
Summary: The research aimed to enhance the mechanical properties of epoxy composites by adding a small amount of nanocellulose. Results showed significant improvements in impact strength, critical stress intensity factor, and stress at break with nanocellulose addition. The study suggests that even a small quantity of nanofiller can effectively improve the performance of composites and increase economic efficiency in the preparation process.
Article
Mechanics
T. A. Prikhna, O. P. Ostash, A. S. Kuprin, V. Ya. Podhurska, T. B. Serbenyuk, E. S. Gevorkyan, M. Rucki, W. Zurowski, W. Kucharczyk, V. B. Sverdun, M. V. Karpets, S. S. Ponomaryov, B. D. Vasyliv, V. E. Moshchil, M. A. Bortnitskaya
Summary: This paper presents the results of variations in structure, oxidation resistance, and electrical conductivity of a novel MAXphase composite coating. It demonstrates that the Ti-Al-C coating maintains high electrical conductivity and oxidation resistance even after long-term heating in air. The study also reveals that specimen surface layers of MAX-phases and chromium-containing steel become semiconductors due to high-temperature long-term oxidation.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Wojciech Kucharczyk, Mohamed Bakar, Wojciech Zurowski, Anita Bialkowska, Tadeusz Opara, Sylwester Stawarz
Summary: This study investigated the thermo-protective ablative and dynamic mechanical properties of epoxy resins modified with carbon nanotubes under different homogenization methods. The results showed that the composite containing 5% CNT in Epidian 52 exhibited the best thermal protective properties. Dynamic mechanical tests demonstrated that the mechanically homogenized composites had higher complex modulus and lower damping factor compared to the ultrasonically homogenized counterparts.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Physical
Edwin Gevorkyan, Miroslaw Rucki, Zbigniew Krzysiak, Volodymyr Chishkala, Wojciech Zurowski, Wojciech Kucharczyk, Voskan Barsamyan, Volodymyr Nerubatskyi, Tomasz Mazur, Dmitrij Morozow, Zbigniew Siemiatkowski, Jacek Caban
Summary: The preparation of alumina-tungsten carbide nanocomposite was studied, where appropriate heating rates and pressure at different stages were found to be crucial in obtaining a structure with submicron grains. Additionally, a mixture of 50 wt.% Al2O3 and WC was discovered to provide the highest fracture toughness, while sintering temperature above 1600℃ was found to be disadvantageous.
Article
Polymer Science
Andrzej Komorek, Pawel Przybylek, Robert Szczepaniak, Jan Godzimirski, Marek Roskowicz, Szymon Imilowski
Summary: Composite materials, especially sandwich composites, are widely used in the construction of means of transport due to their low density and high stiffness. This study conducted static and dynamic tests to investigate the effect of density and core thickness on the mechanical properties of sandwich composites. The results showed that the core material significantly influenced the strength parameters of the composites, and different polymer foam cores had different adhesive properties. Thicker cores with higher density were found to improve the impact strength and puncture resistance of the sandwich composites.
Article
Polymer Science
Andrzej Komorek, Robert Szczepaniak, Pawel Przybylek, Kacper Komorek, Zenon Komorek, Jan Godzimirski, Andrzej Zbrowski
Summary: The research modified the basic adhesive composition to estimate the effect of fatigue loading on the temperature of the adhesive material. The temperature of the materials was recorded using a thermal imaging camera and a thermoelectric thermometer. An increase in the number of load cycles corresponded to an increase in the temperature of most tested materials at 20 Hz, while a decrease in temperature was observed for modified samples at a frequency of 30 Hz after a certain value. Fatigue loading caused an increase in the temperature of all tested polymeric materials. The use of a thermal imaging camera allowed for simple identification of areas with the highest temperature during testing, providing more practical use compared to thermocouple thermometers.
