scholarly journals Numerical simulation of shear band localization in geotechnical materials based on a nonlocal plasticity model

2011 ◽  
Vol 19 (3) ◽  
pp. 186-198
Author(s):  
Shouxin Wu ◽  
Xingran Wang
Keyword(s):  
Numerical Simulation ◽  
Shear Band ◽  
Plasticity Model ◽  
Shear Band Localization ◽  
Nonlocal Plasticity

scholarly journals Deformation analysis of shear band in granular materials via a robust plane shear test and numerical simulation

2018 ◽  
Vol 323 ◽  
pp. 385-392 ◽  
Author(s):  
Dong Lei ◽  
Jinfeng Huang ◽  
Wenxiang Xu ◽  
Wenchao Wang ◽  
Pei Zhang
Keyword(s):  
Numerical Simulation ◽  
Shear Band ◽  
Granular Materials ◽  
Shear Test ◽  
Deformation Analysis ◽  
Plane Shear

Plasticity Model and Numerical Simulation of Extruded Oilseeds in Closed Cell

2011 ◽  
Vol 304 ◽  
pp. 235-240
Author(s):  
Xiao Zheng ◽  
Ya Xin Zhang ◽  
Guo Xiang Lin ◽  
Zhi Xian Sun
Keyword(s):  
Numerical Simulation ◽  
Constitutive Equations ◽  
Theoretical Basis ◽  
Inverse Method ◽  
Yield Criterion ◽  
Model Parameters ◽  
Plasticity Model ◽  
Power Curve ◽  
Experimental Stress ◽  
Closed Cell

By using of Kuhn`s yield criterion, plasticity constitutive equations of extruded oilseeds in a closed cylinderical cell were developed. The model parameters were identified from experimental stress—strain using an inverse method. The maximum relative deviations between the measured and the simulated value of soybean and cottonseed are 8.5% and 5.1% respectively, and the average relative deviations are 4.9% and 3.8% respectively. The results of numerical simulation for confined pressing of granular soybeans and cottonseeds in the closed cylinderical cell indicated the following facts that granular soybeans and cottonseeds conform to the model of three power curve, the plasticity constitutive equations can describe the plastic deformation for extruded soybean and cottonseed, and Kuhn`s yield criterion can be used as theoretical basis for plasticity model of granular soybeans and cottonseeds.

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