Experimental Test of the validity of "Isotropic" Approximation for the Mechanical Behaviour of Clay

Details Experimental Test of the validity of "Isotropic" Approximation for the Mechanical Behaviour of Clay Experimental Test of the validity of "Isotropic" Approximation for the Mechanical Behaviour of Clay

2005-07-07

arxiv.org/abs/cond-mat/0507173v1

Poudres & Grains 12, 5-10, (2001), ISSN 1257-3957

Physics

Condensed Matter

Soft Condensed Matter

6 pages + 1 page, 1 figure

Scientific paper

Experimental data from axially symmetric compression test at constant mean pressure p on kaolinite clay are used to study the validity of an "isotropic" modelling as a function of the overconsolidation ratio (OCR).The isotropic assumption is found to be quite good for 24. For very large OCR (OCR >10), anisotropic response is observed at few percents of axial deformation. Relation with anisotropic distribution of local forces is made. Pacs # : 5.40 ; 45.70 ; 62.20 ; 83.70.Fn

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