Open AccessForce transmission in three-dimensional hexagonal-close-packed granular arrays submitted to a point load
Author(s) -
Tao Miao,
Yi Chen-Hong,
Yanli Qi,
Quanquan Mu,
Yuan Liu
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.4713
Subject(s) - materials science , hexagonal crystal system , transmission (telecommunications) , symmetry (geometry) , point (geometry) , layer (electronics) , condensed matter physics , mechanics , composite material , physics , geometry , crystallography , computer science , telecommunications , chemistry , mathematics
In this article, the aluminium-plastic board and carbon paper technique are combined to investigate the contact force at bottom boundary of three-dimensional ordered granular arrays in response to a point load. Arching effects were observed with all arrays, and the force distribution markedly depends on the crystal structure and has a 120°-symmetry at every layer of the crystals while the heterogeneity in force distribution in the pure hcp arrays is minimal of all the arrays. Non-main force chains were observed to have the “focalization" phenomena. These results can be explained by a force-transmission model.