Estimating the poroelastic properties of cracked materials

摘要: We present a comparative study of the ability some micromechanics estimates to predict overall properties heterogeneous materials. focus mainly on cracked materials, for which this task is difficult and many fail. particularly interaction direct derivative estimate, proposed by Zheng Du, an approximation generalized self-consistent scheme, but has very convenient property be always explicit. A modified version called full-range IDD yields good results when comparing all poromechanical coefficients predicted estimate finite element simulations 2D material in plane strain, up crack density factors 1 aligned cracks 0.60 randomly oriented cracks. The accuracy computations moduli also commented plotting convergence average as well confidence intervals these averages.