Effective elastic properties of fractured rocks: Dynamic vs. static considerations

摘要: We present a new technique for static computations of effective elastic properties multiple fractured rocks. This approach is based on the viscoelastic rotated staggered finite-difference (FD) grid wave propagation technique. Our simulations are used to explain discrepancies some recent numerical studies. The focus scale effects so-called representative volume element (RVE). From point view classical micromechanics we review different techniques: Static as well dynamic experiments. show that differential medium theory (DEM) capable producing satisfactory predictions moduli. For non-dilute crack densities this not case non-interacting approximation (NIA).