Qing Lia, Xiaoxiang Yangb
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
a461696768@qq.com,byangxx@fzu.edu.cn
Keywords: Rubber composites, Carbon black filler particle, Micromechanical model,
Representative Volume Element, Finite element simulation
Abstract.In this paper, the micromechanical finite element method based on Representative Volume Element has been applied to study and analyze the macro mechanical properties of the carbon black filled rubber composites by using two-dimensional plane stress simulations and three-dimensional axisymmetric simulations under uniaxial compression respectively. The dependence of the macroscopic stress-strain behavior and the effective elastic modulus of the composites, on particle shape, particle area/volume fraction and particle stiffness has been investigated and discussed. Additionally, the simulation results of the two-dimensional plane stress model and the three-dimensional axisymmetric model are evaluated and compared with the experimental data, which shows that the two-dimensional plane stress simulations generate poor predictions on the mechanical behavior of the carbon black particle reinforced rubber composites,while the three-dimensional axisymmetric simulations appear to give a better prediction.
李庆