A Simple Incremental Modelling of Granular-Media Mechanics

Details A Simple Incremental Modelling of Granular-Media Mechanics A Simple Incremental Modelling of Granular-Media Mechanics

2005-06-14

arxiv.org/abs/cond-mat/0506342v1

Poudres & Grains 9, 1-12, (1999)

Physics

Condensed Matter

Soft Condensed Matter

12 pages, 4 figures

Scientific paper

It is proposed a simple non linear incremental modelling of the axi-symmetric compression of granular materials and powders. It describes the main features of undrained compression and of oedometric compression using the results of compression tests at constant lateral stress . It generalises the concept of characteristic state. It shows that trajectories arriving at a given critical state shall pertain to a single surface in the (v,q,p) space, which confirms the recent result demonstrating that Hvorslev's and Roscoe's surfaces are part of the same surface. Effects of induced anisotropy are discussed; comparison with classical camclay model is performed.

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