Author(s): Khaled Mahmoud

Abstract: This study evaluates advanced materials like bio-composites, fiber-reinforced polymers (FRPs), magnesium alloys, hybrid composites, and high-strength steel, assessing their mechanical performance, recyclability, and environmental impact with a detailed quantitative comparison. Results indicate bio-composites are 90% recyclable and exhibit a low lifecycle carbon footprint (15 kg CO2 eq), while FRPs provide superior strength-to-density ratios essential for aerospace and automotive sectors. Recommendations prioritize bio-composites for eco-friendly applications and suggest advancing recycling technologies for FRPs. A comprehensive methodology was employed, including mechanical testing to assess tensile strength, density, and elastic modulus, alongside lifecycle carbon footprint analysis and recyclability evaluation. Statistical tools and visualizations were used to compare material performance and environmental metrics, providing a robust framework for analysis. Statistical analysis highlighted the need for larger, diverse datasets to conclusively compare recyclability. Results reveal that bio-composites, with their low lifecycle carbon footprint (15 kg CO2 eq) and high recyclability (90%), are the most sustainable option. FRPs exhibit the best strength-to-density ratio, making them ideal for high-performance applications in aerospace and automotive industries. Magnesium alloys and hybrid composites demonstrate balanced performance, suitable for versatile applications but requiring optimization in sustainability metrics. High-strength steel, while mechanically superior, has limitations due to its density and higher carbon footprint. The findings emphasize the need to integrate sustainability metrics, such as recyclability and carbon footprint, into material selection processes. Practical recommendations include prioritizing bio-composites for green construction, advancing recycling technologies for FRPs, and optimizing hybrid composites for specific applications. Future research should focus on enhancing material properties, refining recycling methods, and standardizing lifecycle assessment frameworks to align material innovation with global sustainability goals. Statistical analysis highlighted the need for larger, diverse datasets to conclusively compare recyclability. This research underscores the transformative potential of lightweight materials in achieving sustainable engineering practices, paving the way for a greener and more resource-efficient future.

Pages: 41-45 | Views: 64 | Downloads: 35

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