Abstract
Effective elastic moduli of sintered glass-beads and wave phase velocities in this sintered material saturated by water are estimated by a computer simulation. The simulation consists of (A) simulated random packing of equal spheres, (B) FEM estimation of the spring constants of 6 degrees of freedom for a “sintered” pair of spheres, and (C) simulated tensile tests of a “random network”, as a model of sintered glass-beads, of springs with the estimated spring constants; these tests yield the effective elastic moduli of sintered spherical particle aggregates. And (D) use of these moduli in Biot's simplified formulae gives phase velocities for the first compressional and shear bulk waves. Results of the simulation are compared with the estimates based on the self-consistent models and those by experiments. The simulated results are in good agreement with the experimental ones.
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