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Mean stress in a granular medium in dynamics

✍ Scribed by Jérôme Fortin; Olivier Millet; Géry de Saxcé

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
202 KB
Volume
29
Category
Article
ISSN
0093-6413

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✦ Synopsis

In this paper we propose to construct a mean stress tensor for a granular medium, valid in static and in dynamics, which takes into account the contact reactions and the body forces acting at the grain level. A simple analytical example shows that taking account of inertia forces is essential to insure the symmetry of the mean stress tensor in dynamics. Finally, numerical simulations illustrating this definition of the mean stress tensor are presented for a granular medium ensiled.

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The aim of this paper is to construct an averaged stress tensor for a granular media, valid in static and in dynamics, which takes into account the contact reactions and the body forces acting at the grain level. The construction, based on a simple formula of linear algebra, is inspired from the Cau