Determination of parameters of a hypoplastic constitutive model from properties of grain assemblies

Determination of parameters of a hypoplastic constitutive model from properties of grain assemblies

The stress–strain behaviour of granular materials can be modelled with hypoplastic constitutive relations. A hypoplastic model is briefly introduced for the axially symmetric case, and a procedure for the determination of its parameters is described in detail. It is shown, for several sands and one...

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Veröffentlicht in:Mechanics of cohesive-frictional materials 1999-09, Vol.4 (5), p.461-486
Hauptverfasser: Herle, I., Gudehus, G.
Format: Artikel
Sprache:eng
Schlagworte:
Calculations
Constitutive relations
Grain size and shape
grain skeletons
granulometric properties
hypoplasticity
material parameters
Mathematical models
Parameter estimation
Plasticity
Strain
Stresses
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Beschreibung
Zusammenfassung:The stress–strain behaviour of granular materials can be modelled with hypoplastic constitutive relations. A hypoplastic model is briefly introduced for the axially symmetric case, and a procedure for the determination of its parameters is described in detail. It is shown, for several sands and one gravel, that all parameters of the hypoplastic model are closely related to the granulometric properties of grain assemblies. Recalculations of some element tests are presented in order to verify the proposed procedure. Copyright © 1999 John Wiley & Sons, Ltd.
ISSN:1082-5010
1099-1484
DOI:10.1002/(SICI)1099-1484(199909)4:5<461::AID-CFM71>3.0.CO;2-P