The Mesoscopic Scale FEM Simulation of Dielectric Properties of Composite Material Based on Montecarlo
In this paper we have studied the dielectric properties of electric field grading non-linear composites through computer simulation. We modeled the composite material on a mesoscopic scale by distributing the filler particles in the matrix through pseudo-random number generated by programming in MATLAB and carried out Monte Carlo (MC) simulation. Time-domain least square method was adopted to decompose the total current from simulation then the macro dielectric parameters of material were obtained. The results show that the amplitude and phase of the response currents of composites with filler particles distributed randomly is different which indicates that composites with same dielectric properties filler have different response. Point estimation and interval estimation are respectively adopted to evaluate the coefficients in mathematical model of the dielectric parameters of the MC simulation results, expectations and ranges of the equivalent conductivity under AC and relative permittivity is given. The simulation method for dielectric properties of composites is improved.
composite material dielectric property FEM Monte Carlo simulation nonlinear
LI Zhonghua HUANG zhipeng GUO lei A.Samee Wang HongBo
The key lab of Engineering Dielectrics and its application of National Education Ministry Electric School of Electrical Engineering and Automation, Harbin institute of Technology, Harbin 150040,China
国际会议
哈尔滨
英文
1141-1144
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）