Mesoscopic Scale Instability in Particulate Materials
Publication: Journal of Engineering Mechanics
Volume 142, Issue 8
Abstract
This manuscript investigates some instability features in granular materials by considering an elementary grain arrangement on the intermediate scale. Although force chains have long been recognized as playing a basic role in the strength of granular specimens, the collaborative contribution of grain loops (grain arrangement) has been highlighted more recently. As a result, the stability of grain loops is expected to strongly govern the stability of the whole assembly. This paper shows that such elementary patterns can be destabilized even though the contact law between granules is elastic. This behavior stems from the nature of the kinematical model describing the geometrical interaction between neighboring grains.
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Acknowledgments
The authors would like to express their sincere thanks to the French Research Network MeGe (Multiscale and multi-physics couplings in geoenvironmental mechanics GDR CNRS 3176/2340, 2008-2015) for having funded this work.
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Published In
Journal of Engineering Mechanics
Volume 142 • Issue 8 • August 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Oct 23, 2015
Accepted: Feb 4, 2016
Published online: Mar 30, 2016
Published in print: Aug 1, 2016
Discussion open until: Aug 30, 2016
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