From microscopic simulations to macroscopic material behavior

Stefan Luding*

*Corresponding author for this work

Research output: Contribution to journalConference articleAcademicpeer-review

22 Citations (Scopus)

Abstract

One challenge in computational physics is to bridge the gap between microscopic, "atomistic" sizes and the macroscopic length scale of experimental observation. First, an efficient algorithm for hard sphere molecular dynamics is presented, allowing for many-particle simulations of, e.g., granular systems. In the next step, a "micro-macro" transition is introduced which enables continuum quantities like the stress tensor to be accessed. The approach is used for dense and dissipative gases but can also be applied to more complicated systems like membranes.

Original languageEnglish
Pages (from-to)134-140
Number of pages7
JournalComputer physics communications
Volume147
Issue number1-2
Early online date9 Apr 2002
DOIs
Publication statusPublished - 1 Aug 2002
Externally publishedYes
EventEurophysics Conference on Computational Physics 2001 - Aachen, Germany
Duration: 5 Sep 20018 Sep 2001

Keywords

  • Equation of state
  • Granular matter
  • Micro-macro transition
  • Molecular dynamics
  • Stress tensor

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