Elasticity of sphere packings: pressure and initial state dependence

Details Elasticity of sphere packings: pressure and initial state dependence Elasticity of sphere packings: pressure and initial state dependence

2009-01-15

arxiv.org/abs/0901.2287v1

Physics

Condensed Matter

Materials Science

4 pages; Powders and Grains 2005, Stuttgart : Allemagne (2005)

Scientific paper

Elastic properties and internal states of isotropic sphere packings are studied by numerical simulations. Several numerical protocols to assemble dense configurations are compared. One, which imitates experiments with lubricated contacts, produces well coordinated states, while another, mimicking the effect of vibrations, results, for the same density, in a much smaller coordination number z, as small as in much looser systems. Upon varying the confining pressure P, simulations show a very nearly reversible variation of density, while z is irreversibly changed in a pressure cycle. Elastic moduli are shown to be mainly related to the coordination number. Their P dependence notably departs from predictions of simple homogenization approaches in the case of the shear moduli of poorly coordinated systems.

Affiliated with

Also associated with

No associations

Rating

Elasticity of sphere packings: pressure and initial state dependence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Elasticity of sphere packings: pressure and initial state dependence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elasticity of sphere packings: pressure and initial state dependence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-590197