A Finite Element Method of Research on Transverse Mechanical Properties of Fiber-Reinforced Composites with Random Matrix Void Defects

Matrix voids often appear in the process of manufacturing composite materials, and the existence of voids has a negative impact on the mechanical properties, especially the transverse mechanical properties, of composite materials. However, it will be costly to use experimental methods to determine the influence of matrix voids of different porosity on mechanical properties. This paper introduces a method of using finite element method to establish a randomly distributed matrix voids model, in order to analyze the change of mechanical properties of composite materials under different porosity conditions. Therefore, it provides a numerical calculation method with less computational cost and more efficient for studying the influence of matrix voids on the mechanical properties of the fiber-reinforced composite materials.