Recent research on natural fiber composite validates its utilization, and the significant micromechanical properties developed by different processing methods overlays the attention for its widespread application in many aspiring components of the automobile and aerospace industries. In comparison to synthetic fiber, natural fiber has relatively low weight to strength ration and good mechanical properties. These materials are restricted in automation, marine, and aerospace industries, due to high flammability of natural fiber and lack of durability. This study aimed to learn more about flax fiber composite materials and their mechanical performance and fracture behavior when adding varying percentages of Expandable Graphite (EG). With the addition of EG, there is a disparity in the mechanical properties because of the agglomerations of EG particles and the different modes of fiber pullout. The mechanical properties such as tensile strength, elastic modulus, and flexural strength affect most due to the addition of EG with flax fiber reinforced composite. These properties of the flax fiber composite are useful and overcome different challenging aspects of the aspiring components of modern automobile and aerospace industries.

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