论文部分内容阅读
Homogenization has been widely used for predicting effective coefficients of random heterogeneous materials.Under common Dirichlet boundary condition and Neumann boundary condition,Richardson extrapolation method is introduced to improve the convergence rate of effective coefficients.For random heterogeneous materials with a high contrast of constituent properties,above two boundary conditions cannot provide accurate effective coefficients.A new Robin boundary condition is proposed for the auxiliary problem.