考虑级配颗粒物质间接触力力链的分布概率分析

doi:10.11896/j.issn.1005-023X.2018.20.022

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Abstract 10 mm,13 mm,16 mm,19 mm and 20 mm rigid particles were selected to conduct the indentation test to reveal the distribution laws of the force chains of contact force among granular matter. And the distribution probability of the force chains of contact force was studied by the probabilistic analysis method for the granular materials with single particle size and different particle sizes consideration gradation. The results showed that the distribution probabilities of f, which was the ratio of normal force to ave-rage normal force, increased first and then decreased after exceeding the peak value with the increase of f for 10 mm and 20 mm particles. The corresponding f was close to 1 at the peak values of distribution probability. The errors of distribution probability curve of 10 mm particles were smaller. However, the errors of distribution probability curve of 20 mm particles were relatively large. The distribution probabilities of the granular materials considering gradation decay exponentially, and there was no peak of distribution probability. In addition, the proportions of the strong force chains were less than those of 10 mm and 20 mm granular materials basically.

Key words： granular matter force chain of contact force indentation test distribution probability gradation

Published: 22 November 2018

CLC number:

U414

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	Articles by authors
	CHANG Mingfeng
	PEI Jianzhong
	HUANG Pingming
	XIONG Rui

Cite this article:

CHANG Mingfeng,PEI Jianzhong,HUANG Pingming, et al. Analysis on the Distribution Probability of Force Chain of Contact Force Among Granular Matter Considering Gradation[J]. Materials Reports, 2018, 32(20): 3618-3622.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.20.022 OR http://www.mater-rep.com/EN/Y2018/V32/I20/3618

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