RUNGTA INTERNATIONAL OF JOURNAL OF MECHANICAL AND AUTOMOBILE ENGINEERING

• Volume 2 (Jan 2025- Dec 2025)
Issue 2

1. Compilation of Mechanical Properties of Kenaf- Reinforced Polymer Composites with Varying Fibre Content and Matrices

Aditya Rajput1,#, Shourya Chandrakar2,, Ansh Mishra2, Md Muzaffar Ansari2, Agnivesh Kumar Sinha3, Ram Krishna Rathore3 Author Affiliations

1 Department of Civil Engineering, Rungta College of Engineering and Technology, Bhilai, India-490024
2 Department of Data Science, Rungta College of Engineering and Technology, Bhilai, India-490024
3 Department of Mechanical Engineering, Rungta College of Engineering and Technology, Bhilai, India- 490024

ABSTRACT:
Kenaf fibre has emerged as a promising natural reinforcement in polymer composites due to its sustainability, cost-effectiveness, and favorable mechanical properties. This review compiles and analyzes experimental data on a wide variety of kenaf-reinforced polymer composites to evaluate their mechanical performance. The composites studied include single and hybrid reinforcements combined with matrices such as epoxy, polyester, polyurethane, polylactic acid, and polypropylene. Mechanical properties such as tensile strength, flexural strength, impact strength, Young’s modulus, and elongation at break were compared across different fibre loadings and composite formulations. The results indicate that the incorporation of kenaf fibres significantly enhances mechanical performance, particularly when combined with other reinforcements like glass fibre, banana fibre, or basalt. For example, hybrid kenaf-basalt epoxy composites demonstrated tensile strengths up to 150 MPa and impact strengths exceeding 29 kJ/m². Additionally, fibre loading was found to strongly influence mechanical behavior, with optimal ranges varying by matrix type. Notably, polylactic acid and epoxy-based systems generally showed superior strength and stiffness. This comprehensive dataset highlights the potential of kenaf fibre composites for structural and semi-structural applications in automotive, construction, and consumer product sectors.
Keywords: Polymer matrix composites; Structural applications; Mechanical properties; Sustainable materials; Reinforcement hybridization; Fibre-matrix compatibility

2. Advancing Material Frontiers with Lightweight High Entropy Alloys: A Review of Structure, Properties, and Potential

Ansh Mishra1,#, Shourya Chandrakar1, Aditya Rajput2, Md Muzaffar Ansari1, Agnivesh Kumar Sinha3, Ram Krishna Rathore3
Author Affiliations
1 Department of Data Science, Rungta College of Engineering and Technology, Bhilai, India-490024
2 Department of Civil Engineering, Rungta College of Engineering and Technology, Bhilai, India-4900243
3 Department of Mechanical Engineering, Rungta College of Engineering and Technology, Bhilai, India- 490024
ABSTRACT:
Lightweight High Entropy Alloys (LWHEAs) represent a transformative class of materials designed for high-performance applications in aerospace, automotive, and defense sectors where weight reduction and mechanical integrity are critical. Unlike conventional alloys based on a single principal element, HEAs incorporate multiple principal elements—typically five or more—in near- equimolar ratios, resulting in high configurational entropy and the formation of stable solid-solution phases. LWHEAs integrate low-density elements such as aluminum, magnesium, lithium, or titanium, effectively reducing weight while preserving excellent mechanical strength, corrosion resistance, and thermal stability. These materials demonstrate superior specific strength and structural reliability under extreme conditions, often outperforming traditional light alloys like aluminum or titanium. The combination of high entropy effects, lattice distortion, and sluggish diffusion contributes to their unique behavior and long-term performance. This review examines the compositional design, synthesis methods, mechanical behavior, and potential applications of LWHEAs. The outcome of this review reveals that LWHEAs hold significant promise as next- generation structural materials, with ongoing research focused on tuning their microstructure for enhanced industrial applicability and mass production.
Keywords: High Entropy Alloys, Lightweight Materials, Structural Applications, Specific Strength, Alloy Design, LWHEAs

3. Advances in Mechanical Properties of Glass Fibre-Based Hybrid Composites: Influence of Bio and Nano Fillers

Shourya Chandrakar1,#, Ansh Mishra1, Aditya Rajput2, Md Muzaffar Ansari1, Agnivesh Kumar Sinha3, Ram Krishna Rathore3
Author Affiliations
1 Department of Data Science, Rungta College of Engineering and Technology, Bhilai, India-490024
2 Department of Civil Engineering, Rungta College of Engineering and Technology, Bhilai, India-490024
3 Department of Mechanical Engineering, Rungta College of Engineering and Technology, Bhilai, India- 490024
ABSTRACT:
This study presents a comprehensive analysis of the mechanical properties of various glass fibre- based composite materials. A wide range of hybrid composites were analyzed, including combinations with coir, charcoal, sisal, hemp, basalt, cotton, carbon nanotubes (CNTs), graphene, and rice straw. These materials were evaluated for tensile strength, flexural strength, Young’s modulus, impact strength, and flexural modulus, with fibre content varying across the samples. The results highlight the significant influence of fibre type and percentage on the mechanical performance. Notably, composites reinforced with graphene and carbon-based fillers exhibited enhanced mechanical properties, making them suitable for high-performance applications. On the other hand, natural fibre hybrids offered moderate strength with sustainability benefits. The choice of epoxy or thermoplastic matrix also impacted the material behavior. The findings contribute to the understanding of composite optimization and material selection for structural and industrial applications. This study provides valuable data for future research and helps in the design of cost- effective, lightweight, and high-strength composite materials suitable for diverse engineering uses.
Keywords: Glass fibre; composite materials; mechanical properties; graphene reinforcement; hybrid fibre

4. Advancing Material Frontiers with High Entropy Alloys: A Review of Structure, Properties, and Potential

Md Muzaffar Ansari 1,# , Shourya Chandrakar1, Aditya Rajput2 , Ansh Mishra1 , Agnivesh Kumar Sinha3, Ram Krishna Rathore3 Author Affiliations
1 Department of Data Science, Rungta College of Engineering and Technology, Bhilai, India-490024
2 Department of Civil Engineering, Rungta College of Engineering and Technology, Bhilai, India-490024
3 Department of Mechanical Engineering, Rungta College of Engineering and Technology, Bhilai, India- 490024
ABSTRACT:
High Entropy Alloys (HEAs) represent a revolutionary class of materials engineered for high- performance applications across aerospace, automotive, energy, and defense industries, where mechanical integrity, thermal stability, and corrosion resistance are critical. Unlike conventional alloys based on one or two principal elements, HEAs are composed of five or more principal elements in near-equimolar ratios, resulting in elevated configurational entropy and the stabilization of simple solid-solution phases. This unique compositional strategy leads to exceptional mechanical strength, wear resistance, and structural stability, even under extreme environmental conditions. The synergistic effects of high entropy, severe lattice distortion, sluggish diffusion, and the cocktail effect contribute to the remarkable physical and chemical properties observed in HEAs. This review explores the principles of alloy design, fabrication techniques, microstructural evolution, and mechanical performance of HEAs. It further highlights the broad potential of HEAs as next-generation structural materials and functional components, with particular emphasis on their adaptability through compositional tuning and advanced processing techniques. Continued research is essential for optimizing HEAs for mass production and application-specific performance.
Keywords: High Entropy Alloys, Advanced Materials, Structural Applications, Mechanical Properties, Solid-Solution Strengthening

5. Advances in Mechanical Properties of Jute Fibre – Reinforced Polymer Composites: A Comprehensive Review on Hybridization and Nano Fillers Effects

MD Aman1, # , Taslim Bano2 , Kunal Das2, Lavish Patle3, Agnivesh Kumar Sinha4, Ram Krishna Rathore4
Author Affiliations
1 Department of Computer Science, Rungta College of Engineering and Technology, Bhilai, India-490024
2 Department of Cyber Security, Rungta College of Engineering and Technology, Bhilai, India-490024
3 Department of Data Science, Rungta College of Engineering and Technology, Bhilai, India-490024
4 Department of Mechanical Engineering, Rungta College of Engineering and Technology, Bhilai, India- 490024
ABSTRACT:
Jute fibre – reinforced polymer composites have gained substantial attention in recent years due to their biodegradability, low cost, and acceptable mechanical performance. This review paper summarizes and analyses the mechanical properties – such as tensile strength, flexural strength, modulus, impact strength, fibre content and elongation at break – of jute-based composites with various matrices and modifications. A comparative study is presented between pure jute composites, jute –glass hybrid composites, and jute composites modified with nanofillers such as carbon nanotubes. The effects of fibre content and matrix combinations on the overall performance are explored to assess the optimal configuration for different engineering applications. Among studied composites, hybrid systems like HPMC (S-glass+jute) and nano enhance jute composites demonstrated significant improvement in impact strength and flexuralproperties, indicating the benefits of hybrid reinforcement and nano – integration. Additionally, high- performance jute composites showed potential in replacing synthetic fibre composites for structural applications. Furthermore, the combination of jute with EFB and advanced epoxy formulations yields promising alternatives to conventional composites. This study provides a holistic comparison to guide the development of high-performance, eco-friendly composites materials.
Keywords: Jute Fibre-Reinforced Composites; Mechanical Properties; Nanofillers; Flexural Strength; Carbon Nanotubes

RUNGTA INTERNATIONAL OF JOURNAL OF MECHANICAL AND AUTOMOBILE ENGINEERING