Abstract of the paper ``Rock elastic properties: Dependence on microstructure,''
with P. A. Berge
Depending on the details of the composite microstructure, different theories
may be needed to obtain good agreement with measured elastic properties.
This observation is especially pertinent whenever porosity is present in the
composite, as is normally true for rocks. Predictions of two effective medium
theories are compared to data for porous glass samples. The differential
effective medium (DEM) theory does a good job of predicting elastic behavior of
a porous foam composed of glass. The self-consistent (SC) effective medium
theory does equally well at predicting the behavior of a sintered
glass-bead sample. We find that the realizable microstructure of each
theoretical model is a good analog of the microstructure for one or the other
of these two very different porous glasses. Hashin's composite
spheres assemblage model is also found to be a good model of the
porous glass foam.
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