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1991 | OriginalPaper | Buchkapitel

Some Mechanisms of a Granular Mass in a Silo — Model Tests and a Numerical Cosserat Approach

verfasst von : G. Gudehus, J. Tejchman

Erschienen in: Advances in Continuum Mechanics

Verlag: Springer Berlin Heidelberg

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After opening a silo bottom outlet some characteristic phenomena can be observed: The lateral pressure on the silo wall increases immediately after the beginning of emptying and can be a multiple of the one during filling.Shear zones come into being along the silo wall and, for a dense fill, also inside the flowing granular material. The dilatancy constraint in the shear zones (caused by the stiffness of neighbouring material) results in a scale effect in model silos, i.e. an additional increase of dimensionless wall stresses.Stress fluctuations are registered during the whole emptying process in big and in model silos as well.

Metadaten
Titel
Some Mechanisms of a Granular Mass in a Silo — Model Tests and a Numerical Cosserat Approach
verfasst von
G. Gudehus
J. Tejchman
Copyright-Jahr
1991
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-642-48890-0_14

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