Effect of Boundary, Shear Rate and Grain Crushing on Shear Localization in Granular Materials within Micro-polar Hypoplasticity

2010 ◽  
pp. 363-376 ◽  
Author(s):  
Jacek Tejchman
Keyword(s):  
Shear Rate ◽  
Granular Materials ◽  
Shear Localization ◽  
Boundary Shear ◽  
Grain Crushing

DEM modelling of shear localization in a plane Couette shear test of granular materials

2014 ◽  
Vol 10 (3) ◽  
pp. 389-397 ◽  
Author(s):  
Wenxiong Huang ◽  
Liya Huang ◽  
Daichao Sheng ◽  
Scott W. Sloan
Keyword(s):  
Granular Materials ◽  
Shear Test ◽  
Shear Localization

scholarly journals Why Do Granular Materials Stiffen with Shear Rate? Test of Novel Stress-Based Statistics

2008 ◽  
Vol 101 (26) ◽  
Author(s):  
R. P. Behringer ◽  
Dapeng Bi ◽  
B. Chakraborty ◽  
S. Henkes ◽  
R. R. Hartley
Keyword(s):  
Shear Rate ◽  
Granular Materials ◽  
Rate Test

scholarly journals To the Development of the Phenomenology of Fast Shear Flows of Grain Materials

2021 ◽  
Vol 27 (4) ◽  
pp. 585-598
Author(s):  
V. N. Dolgunin ◽  
O. O. Ivanov ◽  
S. A. Akopyan
Keyword(s):  
Shear Stress ◽  
Shear Rate ◽  
Granular Materials ◽  
Granular Medium ◽  
Stress Generation ◽  
Shear Stresses ◽  
Plastic Shear ◽  
Unified Approach ◽  
Shear Deformations ◽  
Rate Gradient

Phenomenological approaches to describing the rheological behavior of granular materials under conditions of rapid and quasi-plastic shear deformations are considered. A unified approach to the phenomenological-logical description of the physical parameter, called the temperature of the granular medium, and the mechanisms of shear stress generation is proposed. A description is given of the mechanism for generating shear stresses under the action of a flow of pulses directed along the shear rate gradient and caused by transverse quasi-diffusion of particles. This mechanism is taken into account in the rheological model in addition to the traditional mechanism of generating kinetic shear stresses under the action of tangential shock pulses.

Flow of Granular Materials Modeled as a Generalized Reiner-Rivlin Type Fluid

2012 ◽  
Author(s):  
Wei-Tao Wu ◽  
Nadine Aubry ◽  
Mehrdad Massoudi
Keyword(s):  
Shear Rate ◽  
Shear Flow ◽  
Constitutive Model ◽  
Granular Materials ◽  
Simple Shear ◽  
Numerical Solutions ◽  
Volume Fraction ◽  
Lower Plate ◽  
Simple Shear Flow ◽  
Rate Dependent

In this paper we use a non-linear constitutive model for flowing granular materials developed by Massoudi [1] which not only considers the effect of volume fraction but also has a viscosity which is shear rate dependent. This model is a generalization of Reiner’s model [2] derived for wet sand. Specifically we study the simple shear flow of granular materials between two horizontal plates, with the lower plate fixed and the upper plate moving at a constant speed. Numerical solutions are presented for various dimensionless parameters.

scholarly journals A constitutive model for granular materials with grain crushing and its application to a pyroclastic soil

2002 ◽  
Vol 26 (15) ◽  
pp. 1531-1560 ◽  
Author(s):  
Manuela Cecconi ◽  
Antonio DeSimone ◽  
Claudio Tamagnini ◽  
Giulia M.B. Viggiani
Keyword(s):  
Constitutive Model ◽  
Granular Materials ◽  
Grain Crushing ◽  
Pyroclastic Soil
Sign in / Sign up

Export Citation Format

Share Document