Can one make a powder forget its history?

Details Can one make a powder forget its history? Can one make a powder forget its history?

2003-03-07

arxiv.org/abs/cond-mat/0303134v1

Proceedings of the 4th international conference for conveying and handling of particulate solids, pages 12.118-12.124 (May 200

Physics

Condensed Matter

9 pages, 8 figurefiles, 5 figures

Scientific paper

It is shown that computer simulations can qualitatively reproduce experiments, where a powder of cohesive, round, hard particles is periodically deformed at constant volume. Two types of initial configurations are considered: Uniaxially precompacted ballistic deposits and biaxially precompacted DLA-clusters. Both initial configurations had the same volume fraction, but due to the different precompaction procedure completely different principal stresses. After a transient which lasts only less than a period, the stresses follow the same periodic function, i.e. the powder forgot its history.

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