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Micropolar hypoplasticity for persistent shear band in heterogeneous granular materials
Finite elements Heterogeneity Hypoplasticity Micropolar theory Persistent shear band
2015/7/1
Persistent shear bands in heterogeneous materials develop progressively, rather than instantaneously. For a meaningful capture of this deformation pattern, the band must develop naturally and freely u...
DEM simulation of impact force exerted by granular flow on rigid structures
Avalanche DEM Granular flow Impact force
2015/7/1
The paper presents a DEM model for simulating dry granular avalanche down an incline. Flow pattern and impact forces on rigid obstacles are considered. Results of the simulations are compared with exp...
Estimating the impact force generated by granular flow on a rigid obstruction
Debris flow Fluid dynamics Granular flow Impact force Slope failure
2015/7/1
Flowing sediments such as debris and liquefied soils could exert a tremendous amount of force as they impact objects along their paths. The total impact force generally varies with slope angle, veloci...
Critical state plasticity. Part VI:Meso-scale finite element simulation of strain localization in discrete granular materials
Granular materials Strain localization
2015/7/1
Development of more accurate mathematical models of discrete granular material behavior requires a fundamental understanding of deformation and strain localization phenomena. This paper utilizes a mes...
Role of kinetic transport coefficients for hydrodynamic simulations of granular flow
Role of kinetic transport coefficients hydrodynamic simulations of granular flow Fluid Dynamics
2012/4/20
A numerical study is presented to assess the performance of two different models of kinetic transport coefficients for granular materials, namely the Jenkins-Richman theory for moderately dense, quasi...
Assessing a Modified-Sonine Kinetic Theory for Instabilities in Highly Dissipative, Cooling Granular Gases
Modified-Sonine Kinetic Theory Instabilities Highly Dissipative Cooling Granular Gases
2012/2/27
An intriguing phenomenon displayed by granular flows and predicted by kinetic-theory-based models is the instability known as particle "clustering," which refers to the tendency of dissipative grains ...
Influence of specimen-reconstituting method on the undrained response of loose granular soil under static loading
Liquefaction Undrained Dry funnel pluviation Wet deposition Residual strength
2012/2/29
This paper describes the results of an experimental study on the undrained shear behaviour of loose sand collected from the location close to the epicenter of the recent Chlef (Algeria) Earthquake (Oc...