Design and fabrication of a multi-terrain triphibian quadcopter for airborne, terrestrial, and aquatic mobility S. L. Pradeep Kumar, B. Deeban, D. Santhosh Kumar, M. Sasi Kumar Discover Mechanical Engineering, 2026 Unmanned aerial vehicles (UAVs) have garnered significant attention lately for their prospective use in civilian and military surveillance, search and rescue missions, and related activities. The advancement of innovative drones proficient in traversing land, water, and air is a focal point of considerable interest. However, research in the development of a triphibian drone designed for freight transportation with improved structural integrity is inadequate. This study outlines the design, development, and performance evaluation of a novel triphibian quadcopter designed for autonomous operation over three distinct terrains. The system has a utility box with a capacity of 3 kg, making it suitable for short-range distribution. The drone is equipped with GPS navigation, anti-collision sensors, and autonomous stabilization algorithms that provide maneuverability and adaptability to various surroundings. To ensure the reliability of the mechanics, both static and dynamic structural simulations were conducted using ANSYS software. The results indicate that the load distribution on the aluminum frame and foam landing gear exhibits little deformation and satisfactory strength. The prototype functioned well, demonstrating its ability to traverse various terrains seamlessly and self-regulate with little structural degradation. The triphibian quadcopter establishes a robust basis for future research on constructing UAVs capable of operating in several environments. Its demonstrated efficacy indicates potential use in autonomous logistics, disaster relief operations, and military surveillance missions, where adaptability to various modes is crucial.
Sustainable hybrid composites from flax, vetiver, and Luffa cylindrica: Acoustic and structural performance Gokulkumar Sivanantham, Vinod Ayyappan, Prabhu Loganathan, Sasi Kumar Mani, Gurupranes Sivaraj Vijaya, Vijay Raghunathan, Sanjay Mavinkere Rangappa, Suchart Siengchin Polymer Composites, 2025 Sustainable, eco‐friendly composites have always been of great interest due to increasing environmental awareness. In this regard, there is a continuous demand for alternative sustainable materials with enhanced performance. This study focuses on the development of sustainable hybrid composites using flax fibers, vetiver root fibers, and Luffa cylindrica fillers. Composites were fabricated using varied fiber loading ratios and evaluated for tensile, flexural, impact, interlaminar shear strengths, and sound absorption capabilities. Pure flax composites (FV) exhibited the highest tensile strength (40.2 MPa), whereas the hybrid containing two flax layers and 51 g of vetiver fiber (FVL3) achieved the best acoustic absorption, attenuating up to 65% of incident sound. Morphological analysis via SEM revealed that optimized fiber–matrix bonding and a well‐distributed porous network in FVL3 contributed to its superior sound absorption. Although vetiver‐rich composites showed improved impact behavior, excessive vetiver content led to diminished tensile properties due to lower cellulose levels and reduced fiber–matrix adhesion. The results confirm that balancing flax and vetiver inclusions can tailor mechanical and acoustic performance. Consequently, FVL3 is recommended for noise mitigation applications, such as acoustic wall panels, where moderate mechanical strength and high sound absorption are essential. Meanwhile, pure flax‐based laminates (FV) can be prioritized in load‐bearing scenarios requiring higher tensile strength. Therefore, the findings underscore the potential of flax–vetiver–luffa (FVL) hybrids as sustainable alternatives for structural and noise‐control applications, offering a route to environmentally responsible composite design without sacrificing performance.Highlights Eco‐friendly hybrid composites developed using flax, vetiver, and luffa. Alkali treatment improves fiber‐matrix bonding and composite performance. Flax composites achieve the highest tensile strength of 40.2 MPa. FVL3 composite absorbs 59% of sound, ideal for acoustic applications. Sustainable, biodegradable materials reduce environmental impact effectively.
A review on the effect of fiber treatment and fillers on mechanical properties of kenaf fiber–reinforced composites Makeshkumar Mani, Sasi Kumar Mani, Felix Sahayaraj Arockiasamy, Gokulkumar Sivanantham, Jenish Iyyadurai International Polymer Processing, 2025 Nowadays, fiber-reinforced composites have gained attention due to their potential to replace conventional materials in numerous applications. Researchers have shown considerable interest in using natural fiber–based composites for structural applications in the building, aerospace, defense, military, and automotive sectors. These materials possess unique characteristics that enhance their appeal. Kenaf fiber has become a preferred reinforcement material for composites due to its rapid growth in various climatic conditions and economic viability. It is increasingly recognized as an eco-friendly alternative to glass fiber composites. To enhance the performance of composites, researchers have found that the use of filler materials and chemical treatments significantly improve the mechanical characteristics and reduce the organic content in composite laminates. This study provides an overview of various chemical treatments that have been studied for kenaf fiber, the mechanical properties, and the applications of kenaf fiber in various fields. It explores the impact of chemical treatments on the surface of kenaf fiber and the mechanical properties of the composites created with various amounts of natural and synthetic fillers.
Green technologies for modern manufacturing Sasi Kumar Mani, Kumaresan Mayakannan, Sindhu Selvaraj, Krishna Varun Balasubramanian, Sinchana Shri Vinu Green Manufacturing Challenges and Applications, 2025 Green manufacturing is an innovative method of production that focuses on environmental sustainability, efficient use of resources, and minimal environmental harm. Green manufacturing involves a diverse array of techniques and technology that focus on minimizing the environmental impact of production activities. The process entails incorporating sustainable energy sources, such as solar and wind power, in order to diminish dependence on non-renewable fuels and mitigate the release of greenhouse gases. Green manufacturing offers numerous advantages. It not only safeguards the environment by diminishing pollution and preserving resources but also results in cost savings through enhanced efficiency and waste reduction. Furthermore, implementing green manufacturing enables firms to adhere to rigorous environmental rules and satisfy the increasing customer need for environmentally friendly products. This, in turn, improves their market competitiveness and enhances their brand reputation. This chapter discusses the essential characteristics and importance of green manufacturing and its classification and comprehensive examination of all its facets.
Green manufacturing approaches: Case study Sasi Kumar Mani, Kumaresan Mayakannan, Sindhu Selvaraj, Nanssy Vijayakumar, Dharani Subramani, Vaishali Rajasekaran Green Manufacturing Challenges and Applications, 2025 The novel approach to industrial operations known as “green manufacturing” places an emphasis on the preservation of the natural environment. The purpose of this study is to investigate the development of environmentally friendly manufacturing processes across a variety of industries, as well as to present case examples that illustrate their implementation. This chapter investigates the advantages of environmentally responsible production, which include decreased waste, enhanced resource efficiency, and reduced negative influence on the environment. The report also examines the difficulties that are encountered while implementing environmentally friendly practices, such as the initial expenses and the limitations of technology. Finally, it highlights the growing significance of environmentally responsible production in the pursuit of sustainable development.
Characterization of chemically treated luffa aegyptiaca fiber-reinforced epoxy composites with varying bio-filler Sasi Kumar M, Hemalatha S, Ponnavan S, Varunkumar V Journal of Adhesion Science and Technology, 2025 In this investigation, Luffa aegyptiaca–reinforced epoxy composites with varying filler content were produced using the compression molding process to conduct physical, mechanical, and morphological (scanning electron microscope, SEM) analyses. Specimens were created by using L. aegyptiaca as reinforcement, L. aegyptiaca seeds as filler, and epoxy as the matrix for the experiment. The moisture, wax, hemicellulose, and lignin components of the Luffa fiber were removed using a 5% NaOH solution for chemical treatment. In this experiment, L. aegyptiaca seed powder (filler) with varying weight percentages (0%, 5%, 10%, 15%, and 20%) was used to enhance the characteristics of the composite. The physio-mechanical properties of the composite were assessed using tensile, flexural, impact, interlaminar shear strength, water absorption, and hardness tests whereas the composite’s morphology and elemental composition of materials was studied using SEM and EDAX analysis. After the experiment, mechanical properties, such as tensile strength, flexural strength, impact resistance, and hardness, increased by 18.36 MPa, 47.39 MPa, 12.98 kJ/m2, and 5.75 MPa, respectively, when 15 wt% L. aegyptiaca seed powder filler was added. The results of the SEM study revealed improved adhesion between the fiber and resin, thereby enhancing the mechanical properties of the composite for use in various industries, including aerospace, automotive, defense, marine, sports, and musical instruments.
Numerical investigation over a typical launch vehicle with protrusion Arpn Journal of Engineering and Applied Sciences, 2015
RECENT SCHOLAR PUBLICATIONS
Mechanical, morphological, elemental and thermal analysis of bio-hybrid epoxy composites reinforced with Areca husk fiber and seed filler M Sasi Kumar, M MakeshKumar, A Gopinath, B Krishna Varun, ... Polymer Bulletin 83 (5), 225 , 2026 2026 Citations: 1
Effect of Heat Treatment on Surface Roughness, Impact Strength, and Tribological Behavior of Fused Deposition Modeling-Printed Polylactic Acid A Captan Prabakaran, T Sathies, M Sasi Kumar, K Rajasekar Journal of Materials Engineering and Performance, 1-11 , 2026 2026
Design and fabrication of a multi-terrain triphibian quadcopter for airborne, terrestrial, and aquatic mobility SL Pradeep Kumar, B Deeban, D Santhosh Kumar, M Sasi Kumar Discover Mechanical Engineering 5 (1), 20 , 2026 2026
The role of the matrix in automobile composites—studies on recent advancements MS Kumar, S Sathish, M Makeshkumar, N Venkatesh Sustainable Composites for Automotive Engineering, 93-108 , 2026 2026
Surface coating influence on the fiber reinforcement for automobile composites MS Kumar, S Sathish, M Makeshkumar, N Venkatesh Sustainable Composites for Automotive Engineering, 271-293 , 2026 2026
Sustainable hybrid composites from flax, vetiver, and Luffa cylindrica : Acoustic and structural performance G Sivanantham, V Ayyappan, P Loganathan, SK Mani, GS Vijaya, ... Polymer Composites 46 (14), 12818-12834 , 2025 2025 Citations: 21
Examining the performance of eco-friendly flax fiber composites: mechanical, thermal and durability properties D Periasamy, K Prakalathan, B Manoharan, MS kumar, S Krishnasamy, ... Biomass Conversion and Biorefinery 15 (19), 26419-26433 , 2025 2025 Citations: 10
A review on the effect of fiber treatment and fillers on mechanical properties of kenaf fiber–reinforced composites M Mani, SK Mani, FS Arockiasamy, G Sivanantham, J Iyyadurai International Polymer Processing 40 (4), 373-390 , 2025 2025 Citations: 7
Behavioral Study of Tribological Coating of Smart Functional Composites for High Wear Applications MS Kumar, N Venkatesh, MM Kumar, SLP Kumar, DS Kumar, B Deeban Functional Composites: Role in Modern Engineering, 169-187 , 2025 2025
Green technologies for modern manufacturing SK Mani, K Mayakannan, S Selvaraj, KV Balasubramanian, SS Vinu Green Manufacturing, 38-57 , 2025 2025 Citations: 1
Characterization of chemically treated luffa aegyptiaca fiber-reinforced epoxy composites with varying bio-filler M Sasi Kumar, S Hemalatha, S Ponnavan, V Varunkumar JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY 39 (12), 1894-1912 , 2025 2025 Citations: 4
Improvement of physical, chemical, mechanical, and morphological properties of Luffa cylindrica fiber reinforcement composites using Java seed filler S Sathish, M Makeshkumar, M Bharathi Biomass Conversion and Biorefinery 15 (6), 9679-9689 , 2025 2025 Citations: 13
Role of Cobots and Industrial Robots in Industry 5.0 M Makeshkumar, M Sasi Kumar, J Anburaj, S Ramesh Babu, ... Intelligent Robots and Cobots: Industry 5.0 Applications, 43-63 , 2025 2025 Citations: 4
Recent developments in natural and synthetic fibers, polymers, and their composites S Selvaraj, MS Kumar, M Makeshkumar, G Sivanantham, P Loganathan, ... Surface Modification and Coating of Fibers, Polymers, and Composites, 19-41 , 2025 2025 Citations: 3
Recent developments in natural and synthetic fibers, polymers S Selvaraj, MS Kumar, M Makeshkumar, G Sivanantham, P Loganathan, ... Surface Modification and Coating of Fibers, Polymers, and Composites … , 2024 2024
Adapting a phenomenological model for predicting acoustical behaviour of Camellia sinensis / Ananas comosus /E-glass fibre-blended epoxy hybrid composites G Sivanantham, T Pudukarai Ramaswamy, S Selvaraj, A Murugan, ... Proceedings of the Institution of Mechanical Engineers, Part L: Journal of … , 2024 2024 Citations: 7
Advancements in chemical modifications using NaOH to explore the chemical, mechanical and thermal properties of natural fiber polymer composites (NFPC) SK Mani, S Selvaraj, G Sivanantham, FS Arockiasamy, J Iyyadurai, ... International Polymer Processing 39 (4), 406-432 , 2024 2024 Citations: 24
Effect of Various Manufacturing Techniques on Mechanical Properties of Biofiber‐Reinforced Composites M Sasi Kumar, S Sathish, M Makeshkumar, S Gokulkumar, L Prabhu, ... Sustainable machining and green manufacturing, 33-63 , 2024 2024 Citations: 4
Characterization and physicochemical properties of lignocellulosic fibers from Fishtail Palm ( Caryota mitis ) Leaf Stalks G Sivanantham, G Sivaraj Vijaya, A Murugan, S Selvaraj, K Thangavelu, ... Composites and Advanced Materials 33, 26349833241256968 , 2024 2024 Citations: 8
Fire retardant potential of natural fiber reinforced polymer composites: A review A Felix Sahayaraj, TS M, M Sasi Kumar, S Sathish, S Gokulkumar, ... Polymer-Plastics Technology and Materials 63 (7), 771-797 , 2024 2024 Citations: 42
MOST CITED SCHOLAR PUBLICATIONS
Fire retardant potential of natural fiber reinforced polymer composites: A review A Felix Sahayaraj, TS M, M Sasi Kumar, S Sathish, S Gokulkumar, ... Polymer-Plastics Technology and Materials 63 (7), 771-797 , 2024 2024 Citations: 42
Advancements in chemical modifications using NaOH to explore the chemical, mechanical and thermal properties of natural fiber polymer composites (NFPC) SK Mani, S Selvaraj, G Sivanantham, FS Arockiasamy, J Iyyadurai, ... International Polymer Processing 39 (4), 406-432 , 2024 2024 Citations: 24
Sustainable hybrid composites from flax, vetiver, and Luffa cylindrica : Acoustic and structural performance G Sivanantham, V Ayyappan, P Loganathan, SK Mani, GS Vijaya, ... Polymer Composites 46 (14), 12818-12834 , 2025 2025 Citations: 21
Experimental studies on water absorption and mechanical properties of Hibiscus sabdariffa (Roselle) and Urena lobata (Caesar weed) plant Fiber–Reinforced … M Sasi Kumar, S Sathish, M Makeshkumar, S Gokulkumar International Polymer Processing 39 (1), 59-69 , 2024 2024 Citations: 15
Improvement of physical, chemical, mechanical, and morphological properties of Luffa cylindrica fiber reinforcement composites using Java seed filler S Sathish, M Makeshkumar, M Bharathi Biomass Conversion and Biorefinery 15 (6), 9679-9689 , 2025 2025 Citations: 13
Effect of manufacturing techniques on mechanical properties of natural fibers reinforced composites for lightweight products—a review M Sasi Kumar, S Sathish, M Makeshkumar, S Gokulkumar, ... International Symposium on Lightweight and Sustainable Polymeric Materials … , 2023 2023 Citations: 11
Investigation on surface modified Al7075 with niobium by friction stir processing M Makeshkumar, SR Surender, R Madesh, MS Kumar, KP Shankar Materials Today: Proceedings 45, 8054-8058 , 2021 2021 Citations: 11
Examining the performance of eco-friendly flax fiber composites: mechanical, thermal and durability properties D Periasamy, K Prakalathan, B Manoharan, MS kumar, S Krishnasamy, ... Biomass Conversion and Biorefinery 15 (19), 26419-26433 , 2025 2025 Citations: 10
Microstructural and mechanical properties evaluation of dissimilar aluminum alloy and bronze joints using friction stir welding M Makeshkumar, SR Surender, S Arunprakash, R Madesh, MS Kumar, ... Materials Today: Proceedings 47, 5239-5244 , 2021 2021 Citations: 9
Characterization and physicochemical properties of lignocellulosic fibers from Fishtail Palm ( Caryota mitis ) Leaf Stalks G Sivanantham, G Sivaraj Vijaya, A Murugan, S Selvaraj, K Thangavelu, ... Composites and Advanced Materials 33, 26349833241256968 , 2024 2024 Citations: 8
A review on the effect of fiber treatment and fillers on mechanical properties of kenaf fiber–reinforced composites M Mani, SK Mani, FS Arockiasamy, G Sivanantham, J Iyyadurai International Polymer Processing 40 (4), 373-390 , 2025 2025 Citations: 7
Adapting a phenomenological model for predicting acoustical behaviour of Camellia sinensis / Ananas comosus /E-glass fibre-blended epoxy hybrid composites G Sivanantham, T Pudukarai Ramaswamy, S Selvaraj, A Murugan, ... Proceedings of the Institution of Mechanical Engineers, Part L: Journal of … , 2024 2024 Citations: 7
Characterization of chemically treated luffa aegyptiaca fiber-reinforced epoxy composites with varying bio-filler M Sasi Kumar, S Hemalatha, S Ponnavan, V Varunkumar JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY 39 (12), 1894-1912 , 2025 2025 Citations: 4
Role of Cobots and Industrial Robots in Industry 5.0 M Makeshkumar, M Sasi Kumar, J Anburaj, S Ramesh Babu, ... Intelligent Robots and Cobots: Industry 5.0 Applications, 43-63 , 2025 2025 Citations: 4
Effect of Various Manufacturing Techniques on Mechanical Properties of Biofiber‐Reinforced Composites M Sasi Kumar, S Sathish, M Makeshkumar, S Gokulkumar, L Prabhu, ... Sustainable machining and green manufacturing, 33-63 , 2024 2024 Citations: 4
Effect of zirconium and niobium on the microstructure and mechanical properties of high-strength low-alloy cast steels M Makeshkumar, J Anburaj, MS Kumar, AJ Santhosh Materials Research Express 10 (5), 056506 , 2023 2023 Citations: 4
Performance characteristics of GMAW process parameters of multi-bead overlap weld claddings R Madesh, M Makeshkumar, SR Surender, KP Shankar, M Sasi Kumar IOP Conference Series: Materials Science and Engineering 988 (1), 012013 , 2020 2020 Citations: 4
Recent developments in natural and synthetic fibers, polymers, and their composites S Selvaraj, MS Kumar, M Makeshkumar, G Sivanantham, P Loganathan, ... Surface Modification and Coating of Fibers, Polymers, and Composites, 19-41 , 2025 2025 Citations: 3
Mechanical, morphological, elemental and thermal analysis of bio-hybrid epoxy composites reinforced with Areca husk fiber and seed filler M Sasi Kumar, M MakeshKumar, A Gopinath, B Krishna Varun, ... Polymer Bulletin 83 (5), 225 , 2026 2026 Citations: 1
Green technologies for modern manufacturing SK Mani, K Mayakannan, S Selvaraj, KV Balasubramanian, SS Vinu Green Manufacturing, 38-57 , 2025 2025 Citations: 1