Rearrangements and Dilatancy for Sheared Dense Materials

Details Rearrangements and Dilatancy for Sheared Dense Materials Rearrangements and Dilatancy for Sheared Dense Materials

2001-08-27

arxiv.org/abs/cond-mat/0108442v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.195503

Constitutive equations are proposed for dense materials, based on the identification of two types of free-volume activated rearrangements associated to shear and compaction. Two situations are studied: the case of an amorphous solid in a stress-strain test, and the case of a lubricant in tribology test. Varying parameters, strain softening, shear thinning, and stick-slip motion can be observed.

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