Sensitivity of Granular Force Chain Orientation to Disorder-induced Metastable Relaxation

Sensitivity of Granular Force Chain Orientation to Disorder-induced Metastable Relaxation
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颗粒力链方向对无序引起的亚稳态弛豫的敏感性

DOI：
10.1103/physrevlett.116.128001
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发表时间：
2016
期刊：
Phys. Rev. Lett.
影响因子：
--
通讯作者：
and H. Katsuragi
and H. Katsuragi
中科院分区：
--
文献类型：
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作者：
N. Iikawa;M. M. Bandi;and H. Katsuragi

文献摘要

相似文献

一个二维系统的光弹性磁盘垂直轻敲对重力进行了实验监测有序无序配置通过改变双分散性。填充分数，配位数，和一个适当定义的力链取向顺序parameterall表现出类似的急剧转变，一个小的无序增加。在轻敲下检测到的是一个可测量的变化，但不是和。我们发现，无序诱导的亚稳态不显示组态弛豫，但可以通过力链重取向检测。
A two-dimensional system of photoelastic disks subject to vertical tapping against gravity was experimentally monitored from ordered to disordered configurations by varying bidispersity. The packing fraction, coordination number, and an appropriately defined force-chain orientational order parameterall exhibit as similar sharp transition with a small increase in disorder. A measurable change in, but notand, was detected under tapping. We find disorder-induced metastability does not show configurational relaxation, but can be detected via force-chain reorientations.