An instability mechanism for the sliding motion of finite depth of bulk granular materials
type: Item
instance of: scholarly article
title: An instability mechanism for the sliding motion of finite depth of bulk granular materials
zbMATH Open document ID: 0879.76033
DOI: 10.1007/BF01262520
author: O. Diekmann
published in: Acta Mechanica
publication date: 1998-01-22T00:00:00Z
review text: A model using a finite depth of elastic sliding bulk granular materials riding on a basal granular shear flow layer is established to represent the sliding motion of large volume of bulk granular materials. The balance and the stability of this sliding system are investigated under the perturbation of internal pressure waves. The generated instability waves will force favorable phase shifts between the overburden pressure and the sliding velocity, leading to a net reduction in the total power loss due to friction. The depth of sliding mass will affect the generation of this type of instability waves. Both analytical and numerical results show that smaller depth slides can induce stronger instability waves than larger depth slides do.
Mathematics Subject Classification ID: 76E05
Mathematics Subject Classification ID: 76N99
zbMATH DE Number: 1019269
zbMATH Keywords: basal granular shear flow layer
zbMATH Keywords: perturbation of internal pressure waves
zbMATH Keywords: instability waves
MaRDI profile type: Publication
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full work available at URL: https://doi.org/10.1007/bf01262520
OpenAlex ID: W2002758858
description: scientific article; zbMATH DE number 1019269