Article
Materials Science, Multidisciplinary
T. Narendiranath Babu, E. Rajkumar, George George, Jefferson Jobai, D. Rama Prabha
Summary: This study evaluated and compared the tensile and bending strength of natural fiber composites, prepared in different orientations using hand lay-up technique with specific fiber-resin combinations. X-ray diffraction and Fourier-transform infrared spectroscopy were used to analyze the lattice structure and prevalent bonds formed within the composites.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Materials Science, Composites
Jatupol Surakarnkha, Leong Zhaoyuan, Peng Gong, William Holmes, Pratik Desai, Joel Foreman, Nicola Morley
Summary: Carbon fibre reinforced polymer composites have superior properties and are increasingly used in industries like aerospace. Structural health monitoring is necessary due to their complex failure mechanisms. Magnetostrictive materials have been effective in damage detection but need improvement in spatial sensitivity. It is important to demonstrate ease of fabrication, damage detectability, and maintain a good weight-to-cost trade-off.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Ying Wang, Monica J. Emerson, Knut Conradsen, Anders B. Dahl, Vedrana A. Dahl, Eric Maire, Philip J. Withers
Summary: This study presents the first experimental observation and quantification of the evolution of 3D deflection of fibres leading up to kink-band formation in notched unidirectional glass fibre-epoxy composites. The research reveals that the precursor to kink-band nucleation is a local tilting of fibres in the region where the kink bands ultimately form. Even at 99.9% of the failure load, the micro-buckle band is much narrower and shallower than the final kink band, which is delineated by fiber fractures exhibiting wedge-shaped multiple fractures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Andreas Klingler, Qinghao He, Bernd Wetzel, Tom Allen, Lin Ye, Ulf Breuer
Summary: This study investigates the effect of core-shell rubber nanoparticle and block copolymer matrix modifications on the low velocity impact resistance of thin, multi-axial carbon fibre reinforced epoxy laminates. The results show that the damage resistance is greatly enhanced to impact energies of 9 J and 13 J, but a proper bonding between matrix and the embedded fibres is essential. Lower impact energies do not activate the toughening agents effectively.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Review
Polymer Science
Necar Merah, Farhan Ashraf, Mian M. Shaukat
Summary: This comprehensive review paper examines the research work on epoxy clay nanocomposites. It covers the influence of processing techniques and parameters on the nanocomposite morphology, characterization methods, and the effects of adding nanoclay on the mechanical and physical properties of the composite. The review also discusses the advancements, characterization, and applications of hybrid glass fiber reinforced epoxy-clay nanocomposites, as well as potential health and environmental issues related to nanomaterials and their hybrid composites.
Article
Materials Science, Multidisciplinary
Dong Quan, Ujala Farooq, Guoqun Zhao, Clemens Dransfeld, Rene Alderliesten
Summary: Exploring routes for the effective use of recycled carbon fibres (rCFs) is critical to improve the fracture toughness of carbon fibre/epoxy composites. This study demonstrated the potential of using rCFs with PPS fibres for interlayer toughening, resulting in significant enhancements in the interlaminar fracture properties. The main toughening mechanisms were found to be fiber bridging for rCF/PPS mats.
MATERIALS & DESIGN
(2022)
Article
Engineering, Manufacturing
Ross F. Minty, Liu Yang, James L. Thomason
Summary: The paper investigates the impact of epoxy chemistry and testing temperature on the stress-transfer capability of the fibre-matrix interface in a glass fibre reinforced epoxy composite. The interfacial shear strength (IFSS) is found to depend on the hardener-to-resin ratio, testing temperature, and fibre silane coating. The IFSS values decrease with increasing testing temperature, but when the temperature exceeds the glass transition temperature, ratios with excess amine hardener exhibit higher IFSS values. The study suggests that the matrix system's chemistry affects the residual radial compressive stresses at the interface, which relax at higher testing temperatures.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Ceramics
Dheeraj Kumar Gara, Gujjala Raghavendra, P. Syam Prasad, S. Ojha
Summary: The research found that reduced functional group density graphene has good adhesion and enhancement effects in composite materials, making it suitable for structural applications in aerospace industry.
CERAMICS INTERNATIONAL
(2021)
Article
Construction & Building Technology
Vishnu Prasad, K. Sekar, M. A. Joseph
Summary: The study evaluates the mechanical properties of unmodified and nano TiO2 coated flax fibre composites. Improvement in tensile, flexural, and interlaminar shear strength was observed with the use of nano TiO2 coating and silane treatment. Reduction in water diffusion coefficient and enhanced compatibility between fibres and matrix were achieved, leading to improved mechanical properties and water absorption resistance.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Polymer Science
Sankar Karuppannan Gopalraj, Timo Karki
Summary: The mechanical properties of recycled carbon and glass fiber-reinforced epoxy composites were investigated using finite element methods to develop FE models for analyzing their tensile and impact behaviors. The developed models accurately predicted the results of defect-free recycled composites, demonstrating the potential for validating complex mechanical properties and damage behaviors in experimental testing.
Article
Materials Science, Composites
Dong Quan, Guoqun Zhao, Gennaro Scarselli, Rene Alderliesten
Summary: A novel co-curing process using carbon fibre/PEEK tapes was proposed for bonding carbon fibre/epoxy composites, resulting in significantly improved structure integrity and thermal stability. The co-cured joints exhibited increased lap-shear strengths, extended fatigue life, and enhanced mode-I and mode-II fracture energies compared to joints bonded with traditional aerospace structural adhesives. The failure analysis revealed that plastic deformation, resin breakage, and carbon fibre delamination were the main failure mechanisms of the CF/PEEK bonded joints.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Marcin Godzierz, Olha Masiuchok, Viktoriia Talaniuk, Klaudia Kurtyka, Karolina Olszowska, Anastasiia Kobyliukh, Henryk Janeczek, Slawomira Pusz, Pawel Gluchowski, Daniela Kujawa, Bartlomiej Toron, Piotr Szperlich, Piotr Olesik, Jakub Smolen, Mateusz Koziol, Urszula Szeluga
Summary: Growing demand for electric energy has led to an increased interest in research on piezoelectric nanogenerators (PENGs). This study presents a wearable PENG with good impact and vibration energy conversion properties. The research proposes a correlation between matrix stiffness and the piezoelectric properties of 0-3 type composites. Experimental results show that the composite with 10 wt.% of BiFeO3 particles exhibits high power output density.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Multidisciplinary
Qiming Wang, Shiyu Chen, Shaohua Zeng, Pengpeng Chen, Ying Xu, Wangyan Nie, Yifeng Zhou
Summary: This study presents a nature-inspired interface strategy to fabricate high-performance and low-cost fiber-reinforced composites. By coating a heterostructural montmorillonite-multiwalled carbon nanotube (Mt-MWCNT) hybrid on the surface of glass fibers, a nacre-like interface layer is formed, improving the strength and toughness of the glass fiber/ epoxy composites. The enhanced dispersion and strong bonding of the Mt-MWCNT hybrids contribute to the improvement in interlaminar shear strength, work of break, storage modulus, and thermal stability of the resulting composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Mechanical
Mohammad Abedi, S. Ebrahim Moussavi Torshizi, Roohollah Sarfaraz
Summary: The study found that with an increase in the number of freeze-thaw cycles, different damage modes in a composite plate become more concentrated at the notch tip. Additionally, an increase in freeze-thaw cycles leads to a higher contribution of delamination, explaining changes in load-displacement curves after conditioning.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Materials Science, Composites
S. Senthil, K. Murugananthan
Summary: This article describes the physicochemical, thermal, and tensile characteristics of Pennisetum glaucum stem powder (PGSP). The study found that PGSP has a high cellulose content and low hemicellulose and lignin content. PGSP has a certain crystallinity and thermal stability, making it suitable as a filler material in thermoplastic resins and for 3D printing.
POLYMER COMPOSITES
(2022)
Article
Engineering, Mechanical
S. Ramesh, K. Palanikumar, S. B. Boppana, E. Natarajan
Summary: This research investigates the impact of cutting speed on the cutting zone temperature while machining Titanium alloy. Thermal images were captured to analyze the temperature build up zone. Experimental results showed that the cutting temperature increases with cutting speed. The developed machining model using Response Surface Methodology (RSM) helps to determine the optimal combination of machining parameters to minimize temperature.
EXPERIMENTAL TECHNIQUES
(2023)
Article
Polymer Science
Chidambara Kuttalam Kailasanathan, Salem Thangavel Saravanan, Elango Natarajan, Balasubramaniam Stalin
Summary: The study investigates the reduction in warpage in injection-molded thin-walled components by preparing Polyoxymethylene (POM) composite with various weight fractions of talc. The talc is found to act as a nucleation agent and affect the crystallinity of POM, impacting mechanical properties. The study reveals that POM/1% wt Talc polymer composite shows a 12% reduction in warpage with a 45% increase in impact strength, while POM/3% wt Talc polymer composite exhibits superior mechanical properties but more warpage.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
J. M. Prabhudass, K. Palanikumar, Elango Natarajan, Kalaimani Markandan
Summary: The hybridization of natural fibers can enhance the tensile properties of polymer composites, while the addition of MWCNTs can significantly improve impact performance and viscoelastic behavior. Treating fibers with NaOH before composite fabrication effectively improves interfacial bonding and mechanical properties.
Article
Computer Science, Information Systems
Elango Natarajan, V Kaviarasan, Koon Meng Ang, Wei Hong Lim, Sangeetha Elango, Sew Sun Tiang
Summary: The translation introduces the application of teaching learning-based optimization (TLBO) algorithm in solving optimization problems and addresses the challenges it faces. An improved variant called Modified Multi-objective Teaching Learning Based Optimization-Refined Learning Scheme (MMTLBO-RLS) is proposed as a posterior approach to solve challenging multiobjective optimization problems. The modifications made to the algorithm and its application in real-world environments are described.
Article
Engineering, Multidisciplinary
Elango Natarajan, Lidio Inacio Freitas, M. S. Santhosh, Kalaimani Markandan, Ammar Abdulaziz Majeed Al-Talib, C. S. Hassan
Summary: The present study investigated the suitability of S-Glass/carbon fiber reinforced polymer composite for submarine hull subjected to hydrostatic pressure. Polymer composites were explored as alternatives to metallic materials due to their higher mechanical stability. Experimental investigation showed that the S-Glass/carbon fiber reinforced polymer composite had higher specific strength and stiffness compared to metallic materials used for submarine hull. Finite Element Analysis (FEA) was used to analyze the static and dynamic crash behavior of the submarine at varying depths. The results suggested that a depth of 1750 m is recommended for crash safety.
DEFENCE TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
K. Palanikumar, J. Nithyanandam, Elango Natarajan, Wei Hong Lim, Sew Sun Tiang
Summary: Titanium alloys are significant in engineering applications due to their enhanced properties and shape retention at high temperatures. A new Teaching Learning Based Optimization (TLBO) variant was developed to minimize cutting force and surface irregularities in Titanium samples. The algorithm achieved the best quality product at minimal cutting energy through experimental analysis and optimization. The results were validated and the algorithm proved effective in minimizing production wastage.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Review
Oncology
Boya Lu, Elango Natarajan, Hanumantha Rao Balaji Raghavendran, Uma Devi Markandan
Summary: Breast cancer is a common malignancy in women, and triple-negative breast cancers have a higher recurrence rate and lower overall survival rate compared to other breast cancers. Current molecular-targeted therapies are largely ineffective for triple-negative breast cancer, and there is no standard treatment. This review evaluates attempts to classify triple-negative breast cancers based on molecular features, explores promising treatment methods with different advantages, and discusses genetic biomarkers and prediction tools. Accurate molecular classification of triple-negative breast cancers is crucial for risk assessment, treatment decisions, and surveillance.
TECHNOLOGY IN CANCER RESEARCH & TREATMENT
(2023)
Article
Polymer Science
Elango Natarajan, S. Ramesh, Kalaimani Markandan, N. Saravanakumar, A. Anto Dilip, Abdul Rahim Sadiq Batcha
Summary: In this study, the effects of alumina (Al2O3) addition to polyphenylene sulfide (PPS) polymer were investigated. The experimental findings show that the elastic modulus, tensile strength, and flexural strength of PPS were improved with the addition of Al2O3. Different concentrations of Al2O3 resulted in different mechanical properties and thermal stability of the composites. Moreover, the Al2O3 reinforced PPS composites exhibited significant acoustic emission characteristics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Analytical
Firdaus Aslam, Kamal Jamil, Ohnmar Htwe, Brenda Saria Yuliawiratman, Elango Natarajan, Irraivan Elamvazuthi, Amaramalar Selvi Naicker
Summary: This study compared gait changes, radiological outcomes, and functional outcomes in children who underwent DDH surgery with healthy controls. Results showed that there were no differences in spatial parameters between the two groups, but the DDH group had a longer swing phase and a shorter stance phase. They also had smaller hip adduction angle, increased internal rotation, and reduced upward pelvic tilt. Some children had poor radiological outcomes and gait abnormalities despite good functional scores. Specific rehabilitative strategies are recommended for long-term management.
Article
Materials Science, Multidisciplinary
Prince Jeya Lal Lazar, Jeyanthi Subramanian, Elango Natarajan, Kalaimani Markandan, S. Ramesh
Summary: Triply minimal surface structures of short glass fiber reinforced polyamide with different relative densities were prepared and their compressive properties were evaluated. The study found that the compression properties are mainly determined by the cell topology rather than the relative density. Moreover, the compressive properties of lattice structures with short fiber reinforcement are significantly affected by anisotropy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Materials Science, Multidisciplinary
K. Palanikumar, Elango Natarajan, Kalaimani Markandan, Chun Kit Ang, Gerald Franz
Summary: Research on plant-fiber-reinforced composites with well-separated hemp fibers and targeted pre-treatment techniques to enhance mechanical properties has gained significant interest. Selectively removing non-cellulosic components and optimizing fiber surface properties improve interfacial bonding, thermal stability, and resistance to microbial degradation. This study comprehensively reviews these techniques and the impact of hemp fiber as reinforcement on polymeric composite mechanical properties.
Article
Materials Science, Composites
R. Vijayan, Elango Natarajan, K. Palanikumar, A. Krishnamoorthy, Kalaimani Markandan, S. Ramesh
Summary: Environment friendly polymer composites made of plant based natural fibers offer lower carbon footprint, higher biodegradability, higher specific strength, higher thermal and acoustic characteristics. Synthetic glass fibers have high specific strength to weight ratio, great resistance during impact, and high durability. In this study, mechanical properties and thermal stability of hybrid laminates comprising of natural fibers and synthetic fibers were investigated. The findings show that fiber sequencing significantly affects the properties of the composite. The enhanced thermal stability and mechanical properties of the greener hybrid laminates make them suitable for various structural or lightweight industrial applications.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Vinoth Kumar Selvaraj, Jeyanthi Subramanian, Elammaran Jayamani, Shreya Viswanath, Karan Pandurengan, S. Siddharth, Prince Jeya Lal
Summary: This research compared the behavior of bio-based kenaf fiber reinforced with nanoparticles to conventionally used EMI shielding materials in the automative and aerospace industries. The results showed that the bio-based kenaf composite with nanoparticles displayed promising EMI shielding properties, making it a potential alternative to existing materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Engineering, Electrical & Electronic
Alberto Borboni, Karna Vishnu Vardhana Reddy, Irraivan Elamvazuthi, Maged S. AL-Quraishi, Elango Natarajan, Syed Saad Azhar Ali
Summary: A collaborative robot, or cobot, enables direct communication and eliminates barriers between industrial robots and humans. Cobots are used in various applications, including communication robots, logistic robots, and industrial robots for automating tasks. Advanced technology and machine learning have made cobots more accessible and efficient.
