A clumped particle model for rock

By N. Cho, C. Derek Martin, D. Sego. 2007

1,092 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering, Management, Monitoring, Policy and Law, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/073fc8a6736289bb16b685371301698277f90922

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In Civil and Structural Engineering

In Management, Monitoring, Policy and Law

In Mechanics of Materials

Citations in the corpus

Effect of Model Scale and Particle Size Distribution on PFC3D Simulation Results (2013, methodology): “2006; Cho et al. 2007; Koyama and Jing 2007; Yoon 2007; Zhang and Wong 2012). It is noted that the trial-and-error process may lead to non-optimal microscopic parameters because of the highly non-linear local behavior of the particles. Wang and Tonon (2010) conducted detailed studies on the calibrat”
An experimental and numerical study of fracture coalescence in pre-cracked specimens under uniaxial compression (2011, methodology): “Therefore, the parallelbond model can be more realistic for rock-like material modeling in which the bonds may break in either tension or shearing with an associated reduction in stiffness (Cho et al., 2007).”
Thermal Influence on Mechanical Properties of Granite: A Microcracking Perspective (2016, methodology): “This method has been successfully used to examine failure processes of various intact rocks such as granite (Al-Busaidi et al. 2005; Cho et al. 2007, 2008; Hazzard et al. 2000; Hazzard and Young 2004; Potyondy and Cundall 2004; Wanne and Young 2008; Yoon 2007), chalk (Hazzard et al. 2000) and…”
Mechanical Behavior of Brittle Rock-Like Specimens with Pre-existing Fissures Under Uniaxial Loading: Experimental Studies and Particle Mechanics Approach (2016, methodology): “Moreover, in the parallel-bond model, bond breakage results in immediate decrease in macro stiffness because the stiffness is caused by both the contact stiffness and bond stiffness (Potyondy 2007; Cho et al. 2007).”
Influence of moisture on crack propagation in coal and its failure modes (2019, positive): “Figure 4b shows experimental tensile or shear failure planes (marked as T or S) (Cho et al. 2007). Failure of coal samples can be caused by both tensile failure planes and shear failure planes (Fig. 4b). As shown in Fig. 4c, micro-propagations spread and develop into larger cracks. According to Cho ”
Crack Initiation, Propagation and Coalescence in Rock-Like Material Containing Two Flaws: a Numerical Study Based on Bonded-Particle Model Approach (2013, methodology): “4 Illustration of the parallel bond model (Zhang and Wong 2012; modified from Cho et al. 2007) 2.2 2a-45-(0) Macroscopic tensile wing cracks (type 1 tensile cracks) initiate from the tip regions of the two pre-existing flaws as the first cracks (Fig.”
The impact of porosity and crack density on the elasticity, strength and friction of cohesive granular materials : insights from DEM modelling (2009, methodology): “(ii) The ratio of unconfined compressive strength to tensile strength (UCS/T) of DEM 135 models of cohesive rock is too low (ca 3-4) compared to rock (> 10), an issue that has 136 only recently been addressed in 2D [22,26].”
A new contact model to improve the simulated ratio of unconfined compressive strength to tensile strength in bonded particle models (2014, methodology): “Researchers have attempted different methods to tackle this problem [1,6,14,23,24].”
A Study of Three Intrinsic Problems of the Classic Discrete Element Method Using Flat-Joint Model (2016, methodology): “However, when using BPM (Cho et al. 2007; Diederichs 1999; Potyondy and Cundall 2004; Schöpfer et al. 2009; Zhang et al. 2012), three intrinsic problems are encountered: (1) the ratio of unconfined compressive strength to tensile strength (UCS/TS) is unrealistically low, in the range of 3–7; (2)…”
Damage quantification of intact rocks using acoustic emission energies recorded during uniaxial compression test and discrete element modeling (2015, methodology): “An old solution would be to use clumps as suggested by [Cho et al., 2007] or to use flat jointed model as suggested by [Potyondy, 2012].”
A Study of the Failure Mechanism of Planar Non-Persistent Open Joints Using PFC2D (2012, background): “The tensile strength at the contact immediately drops to zero after the bond breaks, while the shear strength decreases to the residual friction value (Itasca Consulting Group Inc 2004; Cho et al. 2007, 2008; Potyondy and Cundall 2004).”
Loading rate effects on cracking behavior of flaw-contained specimens under uniaxial compression (2013, methodology): “The model has been widely used for the rock failure analysis (Asadi and Rasouli 2011; Cho et al. 2007; Fakhimi 2004; Fakhimi and Gharahbagh 2011; Fakhimi and Villegas 2007; Hazzard et al. 2000; Park and Song 2009; Potyondy 2007; Potyondy and Cundall 2004; Xia and Zhou 2010; Zhao et al. 2007) for…”