颗粒材料中力波动的逐层矢量随机模型的性质
软凝聚态物质
2009-10-31 v1 材料科学
摘要
我们尝试使用基于格点的逐层随机模型来描述颗粒堆积的应力分布,该模型满足每个位点上的力平衡、力矩平衡和非拉伸力的约束。逐层方法中固有的不对称性似乎导致了不对称的力分布,这与实验和一般对称性考虑均不一致。垂直力分量的概率分布是稳健的,与标量q模型的预测一致,而水平力分量的分布则定性不同,并取决于实现细节。
关键词
引用
@article{arxiv.cond-mat/9811202,
title = {Properties of layer-by-layer vector stochastic models of force fluctuations in granular materials},
author = {M. L. Nguyen and S. N. Coppersmith},
journal= {arXiv preprint arXiv:cond-mat/9811202},
year = {2009}
}
备注
18 pages, 12 figures (with subfigures), 1 table. Uses revtex, epsfig,subfigure, and cite. Submitted to PRE. Plots have been bitmapped. High-resolution version is available. Email [email protected] or download from http://rainbow.uchicago.edu/~mbnguyen/research/vm.html