Munir Faraj Almabrouk Alkbir
This study presents a comprehensive evaluation of composite impact boxes reinforced with natural fiber epoxy and internal support plates, focusing on enhancing automotive safety and sustainability. The study investigated energy absorption, load-bearing performance, and fracture modes of square composite tubes exposed to quasi-static loading conditions. Various natural fibers, including kenaf, flax, bamboo, sugarcane residue, and wool, were used as reinforcements within the polymer matrix. Key mechanical properties such as tensile strength, flexural strength, and impact resistance were analyzed, and the effects of fiber content, orientation, and processing techniques on overall performance were investigated. The results demonstrate that natural fiber composites can achieve mechanical performance comparable to conventional synthetic materials while providing significant environmental benefits, such as biodegradability, reduced carbon emissions, and the use of renewable resources. These findings suggest the potential for natural fiber reinforced composites to be utilized in the development of sustainable, lightweight, and eco-friendly automotive structures that align with circular economy principles.