| Abstrakt: |
Based on fiber and matrix type, structure, and manufacture, fiber-reinforced composites are quickly expanding to serve current industrial applications. Composite materials have demonstrated exceptional conductivity, recyclability, density, and strength-to-weight ratio. As a result, much research is necessary before selecting appropriate composites. The purpose of this study is to conduct a thorough evaluation of the mechanical characteristics of carbon fiber/epoxy and flax fiber/epoxy composites. RVE creates three representative volume elements to determine the stiffness of composite materials using the finite element method. Based on the unidirectional configurations, the longitudinal modulus, transverse modulus, shear modulus, and Poisson's ratio are thoroughly examined. To analyze the composite qualities, theoretical methodologies such as the rule of mixing, Chamis, Halpin-Tsai, and Nielsen theorems are used, and the findings are compared to those of FEM solutions. As a result, the elastic characteristics of carbon fiber/epoxy and flax fiber/epoxy may rise when the fiber volume percentage increases. The analytical findings further show that the square form of the RVE unidirectional model corresponds to the Chamis theorem better than alternative theoretical solutions. [ABSTRACT FROM AUTHOR] |
