Lattice Boltzmann modeling of the effective elastic property for ZrB 2 -based composites

Abstract

This paper introduces a numerical method for predicting the effective elastic module of ZrB₂-based composites, which includes a random generation-growth method for generating microstructures of ZrB₂-based composites based on existing statistical macroscopic geometrical characteristics and a highly efficient lattice Boltzmann algorithm for solving the governing equations on the multiphase microstructures. The effective elastic module of random ZrB₂-based materials is analyzed with different parameters by the present method, including effects of component size and material anisotropy. The simulation results indicate this numerical method’s effectiveness and robustness by comparing the predictions with experimental data and other theoretical models.

Keywords

ZrB2 / lattice Boltzmann method / elastic property / Young’s modulus / multiphase composites / random structure