Protocol dependence of mechanical properties in granular systems

S. Inagaki, M. Otsuki, S. Sasa

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

We study the protocol dependence of the mechanical properties of granular media by means of computer simulations. We control a protocol of realizing disk packings in a systematic manner. In 2D, by keeping material properties of the constituents identical, we carry out compaction with various strain rates. The disk packings exhibit the strain rate dependence of the critical packing fraction above which the pressure becomes non-zero. The observed behavior contrasts with the well-studied jamming transitions for frictionless disk packings. We also observe that the elastic moduli of the disk packings depend on the strain rate logarithmically. Our results suggest that there exists a time-dependent state variable to describe macroscopic material properties of disk packings, which depend on its protocol.

本文言語英語
論文番号124
ジャーナルEuropean Physical Journal E
34
11
DOI
出版ステータス出版済み - 11 2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biophysics
  • Chemistry(all)
  • Materials Science(all)
  • Surfaces and Interfaces

フィンガープリント 「Protocol dependence of mechanical properties in granular systems」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル