Discrete element modeling on crack evolution behavior of sandstone containing two oval flaws under uniaxial compression

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Wen-Ling Tian ◽  
Sheng-Qi Yang ◽  
Yan-Hua Huang
Keyword(s):  
Uniaxial Compression ◽  
Discrete Element ◽  
Discrete Element Modeling ◽  
Crack Evolution ◽  
Element Modeling ◽  
Evolution Behavior

Discrete element modeling of bonded soil mixtures under uniaxial compression and indirect tension test

2021 ◽  
Vol 26 ◽  
pp. 100438
Author(s):  
Syfur Rahman ◽  
Mohammad Jamal Khattak ◽  
Bikash Adhikari ◽  
Sambodh Adhikari
Keyword(s):  
Uniaxial Compression ◽  
Discrete Element ◽  
Tension Test ◽  
Discrete Element Modeling ◽  
Element Modeling ◽  
Indirect Tension ◽  
Soil Mixtures ◽  
Indirect Tension Test

Experimental and discrete element modeling on cracking behavior of sandstone containing a single oval flaw under uniaxial compression

2018 ◽  
Vol 194 ◽  
pp. 154-174 ◽  
Author(s):  
Sheng-Qi Yang ◽  
Wen-Ling Tian ◽  
Yan-Hua Huang ◽  
Zhan-Guo Ma ◽  
Li-Feng Fan ◽  
...  
Keyword(s):  
Uniaxial Compression ◽  
Discrete Element ◽  
Discrete Element Modeling ◽  
Cracking Behavior ◽  
Element Modeling

scholarly journals An Energy-Based Discrete Element Modeling Method Coupled with Time-Series Analysis for Investigating Deformations and Failures of Jointed Rock Slopes

2021 ◽  
Vol 11 (12) ◽  
pp. 5447
Author(s):  
Xiaona Zhang ◽  
Gang Mei ◽  
Ning Xi ◽  
Ziyang Liu ◽  
Ruoshen Lin
Keyword(s):  
Time Series ◽  
Iterative Process ◽  
Discrete Element ◽  
Jointed Rock ◽  
Modeling Method ◽  
Discrete Element Modeling ◽  
Rock Slopes ◽  
Sliding Surface ◽  
Element Modeling ◽  
Displacement Based

The discrete element method (DEM) can be effectively used in investigations of the deformations and failures of jointed rock slopes. However, when to appropriately terminate the DEM iterative process is not clear. Recently, a displacement-based discrete element modeling method for jointed rock slopes was proposed to determine when the DEM iterative process is terminated, and it considers displacements that come from rock blocks located near the potential sliding surface that needs to be determined before the DEM modeling. In this paper, an energy-based discrete element modeling method combined with time-series analysis is proposed to investigate the deformations and failures of jointed rock slopes. The proposed method defines an energy-based criterion to determine when to terminate the DEM iterative process in analyzing the deformations and failures of jointed rock slopes. The novelty of the proposed energy-based method is that, it is more applicable than the displacement-based method because it does not need to determine the position of the potential sliding surface before DEM modeling. The proposed energy-based method is a generalized form of the displacement-based discrete element modeling method, and the proposed method considers not only the displacement of each block but also the weight of each block. Moreover, the computational cost of the proposed method is approximately the same as that of the displacement-based discrete element modeling method. To validate that the proposed energy-based method is effective, the proposed method is used to analyze a simple jointed rock slope; the result is compared to that achieved by using the displacement-based method, and the comparative results are basically consistent. The proposed energy-based method can be commonly used to analyze the deformations and failures of general rock slopes where it is difficult to determine the obvious potential sliding surface.

Discrete element modeling of non-linear submerged particle collisions

2013 ◽  
Vol 15 (6) ◽  
pp. 759-769 ◽  
Author(s):  
Ingrid Tomac ◽  
Marte Gutierrez
Keyword(s):  
Discrete Element ◽  
Discrete Element Modeling ◽  
Particle Collisions ◽  
Element Modeling ◽  
Non Linear

Large-scale discrete element modeling in a fluidized bed

2010 ◽  
Vol 64 (10-12) ◽  
pp. 1319-1335 ◽  
Author(s):  
Mikio Sakai ◽  
Yoshinori Yamada ◽  
Yusuke Shigeto ◽  
Kazuya Shibata ◽  
Vanessa M. Kawasaki ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Large Scale ◽  
Discrete Element ◽  
Discrete Element Modeling ◽  
Element Modeling
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