Téléchargement de l'article au format pdf(70.1 Ko)E.M.D. Baltimore 1999
On a three dimensional micromechanical damage model and its application to brittle rocks
Abstract
A general 3-D micromechanical damage model, based on a frictional sliding crack mechanism, is formulated in rate form. First we summarize the main physical and theoretical aspects of the model. Then we present an application on a French sandstone. It is concluded that the model describes the salient features of anisotropic damage of brittle materials : load-induced anisotropy, positive dilatancy, hysteresis loops, non negligible permanent strains, damage deactivation due to microcracks closure.
Téléchargement de l'article au format pdf(70.1 Ko)
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