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Sperl, Matthias
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Publications (8/8 displayed)
- 2024Dynamical yield criterion for granular matter from first principles
- 2020Integration through transients for inelastic hard sphere fluidscitations
- 2018Rheology of Inelastic Hard Spheres at Finite Density and Shear Ratecitations
- 2016Enhanced granular medium-based tube and hollow profile press hardeningcitations
- 2011Proximity Induced Enhancement of the Curie Temperature in Hybrid Spin Injection Devices
- 2007Surface treatments and magnetic properties of Ga1−xMnxAs thin films
- 2006Influence of surface treatment on the magnetic properties of GaxMn1-xAs thin films.
- 2006Influence of surface treatment on the magnetic properties of GaxMn1−xAs thin films
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article
Dynamical yield criterion for granular matter from first principles
Abstract
We investigate, using a recently developed model of liquid state theory describing the rheology of dense granular flows, how a yield stress appears in granular matter at the yielding transition. Our model allows us to predict an analytical equation of the corresponding dynamical yield surface, which is compared to the usual models of solid fracture. In particular, this yield surface interpolates between the typical failure behaviors of soft and hard materials. This work also underlines the central role played by the effective friction coefficient at the yielding transition.