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Simulation research of the buffering capacity of non-convex particle system under impact loading

Authors :
Zhang Qi
Wang Siqiang
Hou Meiying
Source :
EPJ Web of Conferences, Vol 140, p 06013 (2017)
Publication Year :
2017
Publisher :
EDP Sciences, 2017.

Abstract

The behavior of granular materials under the action of external force is a fundamental problem for the dynamics of granular media. This paper investigates the buffering capacity of three-dimensional non-convex granular beds subjected to vertical impact using the discrete element methods. The results display the particle shape significantly affects the buffering capacity of the equal mass granular bed. And the influence of aspect ratio of non-convex particles on buffering capacity exhibits an obvious non-monotonicity. The functional mechanism of inter-particle friction is discussed. It is showed that the shape of the non-convex particles has a great effect on the contact number of granular system and probability density functions of inter-particle forces.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
140
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.3567b7a3b70b44bc93f1e02193f72866
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/201714006013