Coarse-Graining of a Physical Granular System(Frontiers in Nonequilibrium Physics-Fundamental Theory, Glassy & Granular Materials, and Computational Physics-)

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概要

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• Results, including displacement, strain and stress fields, obtained by applying a resolution-controlled coarse-graining method to an experiment, comprised of a bidisperse system of photoelastic disks under pure shear, are presented. The paper reviews the experimental methods as well as the philosophical and technical bases of the coarse-graining methods employed in this study. Some fields reveal the emergence of a shear band while others do not. Correlations of the displacement fluctuations are shown to decay on a very small scale, of the order of a few particle diameters, even close to jamming. An unexpectedly simple relation between the particle rotation angles and the rotation field is reported. Implications of these and other findings are discussed.

• 2010-07-27

著者

• ZHANG Jie

  Dept. of Physics, Duke University

• BEHRINGER Robert

  Dept. of Physics, Duke University

• GOLDHIRSCH Isaac

  School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv University

• Behringer Robert

  Dept. Of Physics Duke University

• Goldhirsch Isaac

  School Of Mechanical Engineering Faculty Of Engineering Tel-aviv University

• Zhang Jie

  Dept. Of Physics Duke University:(present Office)cnls And Mpa-cmms Los Alamos National Laboratory

• Zhang Jie

  Dept. Of Computing And Information Systems Univ. Of Luton

• ZHANG Jie

  Dept. of Physics, Duke University:(Present office)CNLS and MPA-CMMS, Los Alamos National Laboratory

関連論文

• Coarse-Graining of a Physical Granular System(Frontiers in Nonequilibrium Physics-Fundamental Theory, Glassy & Granular Materials, and Computational Physics-)
• Coarse-Graining of a Physical Granular System
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