ar X iv : c on d - m at / 0 30 31 34 v 1 7 M ar 2 00 3 CAN ONE MAKE A POWDER FORGET ITS HISTORY ?

نویسندگان

  • M. Morgeneyer
  • L. Brendel
  • Z. Farkas
  • D. Kadau
  • D. E. Wolf
  • J. Schwedes
چکیده

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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تاریخ انتشار 2003