Application of the Preisach-Mayergoyz space model to analyze moisture effects on the nonlinear elastic response of rock

Abstract

Experimental evidence for the saturation dependence of the nonlinear behavior of Berea sandstone has been analyzed using the Preisach-Mayergoyz space (P-M space) model in terms of classical and non-classical mesoscopic entities. The analysis suggests the introduction of two macroscopic solid-fluid interaction pressures, which link the moisture influence to characteristic populations of the material composition.