scholarly journals A Free Interface Model for Static/Flowing Dynamics in Thin-Layer Flows of Granular Materials with Yield: Simple Shear Simulations and Comparison with Experiments

2017 ◽  
Vol 7 (4) ◽  
pp. 386 ◽  
Author(s):  
Christelle Lusso ◽  
François Bouchut ◽  
Alexandre Ern ◽  
Anne Mangeney
Keyword(s):  
Thin Layer ◽  
Granular Materials ◽  
Simple Shear ◽  
Interface Model ◽  
Free Interface ◽  
Comparison With Experiments

A Dynamical Model for a Thin Layer of Granular Materials

2001 ◽  
Vol 18 (5) ◽  
pp. 698-700 ◽  
Author(s):  
Miao Guo-Qing ◽  
Sui Lei ◽  
Wei Rong-Jue
Keyword(s):  
Thin Layer ◽  
Granular Materials ◽  
Dynamical Model

scholarly journals A constitutive model with microstructure evolution for flow of rate-independent granular materials

2011 ◽  
Vol 682 ◽  
pp. 590-616 ◽  
Author(s):  
JIN SUN ◽  
SANKARAN SUNDARESAN
Keyword(s):  
Friction Coefficient ◽  
Constitutive Model ◽  
Granular Materials ◽  
Simple Shear ◽  
Evolution Equations ◽  
Complex Loading ◽  
Dem Simulations ◽  
Particle Level ◽  
Complex Rheology ◽  
Using Data

A constitutive model is developed for the complex rheology of rate-independent granular materials. The closures for the pressure and the macroscopic friction coefficient are linked to microstructure through evolution equations for coordination number and fabric. The material constants in the model are functions of particle-level properties and are calibrated using data generated through simulations of steady and unsteady simple shear using the discrete element method (DEM). This model is verified against DEM simulations at complex loading conditions.

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