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On anisotropy of stratified rocks : homogenization and fabric tensor approach

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2003
auteur(s) Lydzba Dariusz; Pietruszczak S.; Shao Jian-Fu
journal Computers and geotechnics
volume (numéro) 30 (4)
pages 289 – 302
résumé This paper is concerned with the specification of failure criterion for stratified rocks. A particular formation considered here is a laminate consisting of interchanging layers of sandstone and claystone. First, a homogenization procedure is employed in which the conditions at failure are identified based on properties of constituent materials. Later, a simpler approach is pursued in which a macroscopic criterion is derived by incorporating the notion of a microstructure/fabric tensor. It is demonstrated that both methodologies yield very similar results in compression as well as tension regimes.
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