scholarly journals Three-dimensional discrete element method parallel computation of Cauchy stress distribution over granular materials

2019 ◽  
Vol 43 (5) ◽  
pp. 974-1004 ◽  
Author(s):  
Beichuan Yan ◽  
Richard A. Regueiro
Keyword(s):  
Stress Distribution ◽  
Discrete Element Method ◽  
Parallel Computation ◽  
Granular Materials ◽  
Three Dimensional ◽  
Discrete Element ◽  
Cauchy Stress ◽  
Element Method

scholarly journals Investigating the Combined Effects of Inherent and Stress-Induced Anisotropy on the Mechanical Behavior of Granular Materials Using Three-Dimensional Discrete Element Method

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Xinran Chen ◽  
Jinsong Qian ◽  
Lei Zhang ◽  
Jianming Ling
Keyword(s):  
Discrete Element Method ◽  
Mechanical Behavior ◽  
Granular Materials ◽  
Three Dimensional ◽  
Discrete Element ◽  
Contact Forces ◽  
Combined Effects ◽  
Induced Anisotropy ◽  
Stress Induced Anisotropy ◽  
Element Method

The three-dimensional discrete element method (DEM) was employed to investigate the combined effects of inherent and stress-induced anisotropy of granular materials. The particles were modeled following real particle shapes. Both isotropic and inherently anisotropic specimens were prepared, and then true triaxial numerical tests were conducted using different intermediate principle stress ratios (b). The results indicate that the oriented particles in the anisotropic specimens form strong contacts in their long axis direction in the early stages of shearing, which restrains the contraction of the specimens. As the strain increases, the oriented particles start to rotate and slide, which results in shorter contraction stages and fewer number of interparticle contacts with peak values compared to the isotropic specimens. In addition, the increase in b values aggravates the rotating and sliding of particles in the inherently anisotropic specimens and restrains the contraction of the granular and the increase of contact forces. As a result, the inherent anisotropy reduces the effects of stress-induced anisotropy on the mechanical behavior of granular materials.

scholarly journals Influence of Blast Furnace Inner Volume on Solid Flow and Stress Distribution by Three Dimensional Discrete Element Method

2010 ◽  
Vol 50 (10) ◽  
pp. 1406-1412 ◽  
Author(s):  
Zhengyun Fan ◽  
Satoru Igarashi ◽  
Shungo Natsui ◽  
Shigeru Ueda ◽  
Tianjun Yang ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Stress Distribution ◽  
Discrete Element Method ◽  
Three Dimensional ◽  
Discrete Element ◽  
Solid Flow ◽  
Element Method

A generalized three-dimensional discrete element method with electrostatic induced cohesion

2020 ◽  
Vol 22 (4) ◽  
Author(s):  
Daniel Bustamante ◽  
Alex X. Jerves ◽  
Sebastián A. Pazmiño
Keyword(s):  
Discrete Element Method ◽  
Three Dimensional ◽  
Discrete Element ◽  
Element Method

Three-dimensional discrete element method simulation of core disking

2018 ◽  
Vol 66 (3) ◽  
pp. 267-282 ◽  
Author(s):  
Shunchuan Wu ◽  
Haoyan Wu ◽  
John Kemeny
Keyword(s):  
Discrete Element Method ◽  
Three Dimensional ◽  
Discrete Element ◽  
Core Disking ◽  
Discrete Element Method Simulation ◽  
Element Method
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