期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms7361
关键词
-
资金
- NASA [NNX10AU01G]
- NSF [DMR1206351, DMS1248071]
- ARO [W911NF-1-11-0110]
- Laboratory of Physical Chemistry and Colloid Science at Wageningen University
- NASA [123349, NNX10AU01G] Funding Source: Federal RePORTER
- Direct For Mathematical & Physical Scien
- Division Of Mathematical Sciences [1248071] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1206351] Funding Source: National Science Foundation
If you walk on sand, it supports your weight. How do the disordered forces between particles in sand organize, to keep you from sinking? This simple question is surprisingly difficult to answer experimentally: measuring forces in three dimensions, between deeply buried grains, is challenging. Here we describe experiments in which we have succeeded in measuring forces inside a granular packing subject to controlled deformations. We connect the measured micro-scale forces to the macro-scale packing force response with an averaging, mean field calculation. This calculation explains how the combination of packing structure and contact deformations produce the observed nontrivial mechanical response of the packing, revealing a surprising microscopic particle deformation enhancement mechanism.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据