Abstract
Particle-reinforced composites are a widely favored high-performance material. Mechanical properties are important indicators for evaluating composite materials. This paper presents a method for analyzing the mechanical properties of particle-reinforced composites. The way is based on the Scaled Boundary Finite Element Method (SBFEM) and Monte Carlo method to study the mechanical properties of composite materials. This study will explore the mechanical properties of particle reinforced composites from three aspects: equivalent modulus, equivalent Poisson's ratio, and the major principal stress. First, the number of models is determined by the Monte Carlo method. Secondly, the factors affecting the mechanical properties of composites and their influencing laws are analyzed from inclusion distribution (inclusion volume ratio, inclusion number, inclusion distribution density) and inclusion shape factor (elliptical Shape features, 6inclusion distribution angle). Finally, the fitting equation for evaluating the mechanical properties of composites is given. Compare the calculated results with the statistical results to verify the validity of the fitting function. A total of 160,000 computational models are analyzed in this work. The conclusion includes the variation law and fitting function of particle-reinforced composites' mechanical properties.
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