Limits of isotropic plastic deformation of Bangkok clay

Details Limits of isotropic plastic deformation of Bangkok clay Limits of isotropic plastic deformation of Bangkok clay

2005-07-08

arxiv.org/abs/cond-mat/0507196v1

Poudres & Grains 14, 4-7, (2004), ISSN 1257-3957

Physics

Condensed Matter

Soft Condensed Matter

4 pages + 1 page, 1 figure

Scientific paper

A model assuming incremental plastic isotropic response has been recently proposed to model the deformation of isotropic packing of grains, in the small-strain range. It is used here on over-consolidated remould clay, to interpret the small-strain range behaviour obtained in [1,2] on Bangkok clay. The data published in [1,2] at constant volume are also used here to measure the size of the domain of validity in the (q/(M'p), p/po) plane, where po is the over-consolidation isotropic pressure, p is the mean stress and q the deviatoric stress, q . So, it is shown that the model works also for clay. This enlarges the application domain of model [3,4] to soft clay with OCR larger than 1.2 to 1.5. Pacs # : 45.70.-n ; 62.20.Fe ; 83.80.Fg, 83.80.Hj

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