Journal Article10.1016/J.IJRMMS.2004.09.011
A bonded-particle model for rock
D.O. Potyondy,Peter Cundall +1 more
TL;DR: In this paper, a numerical model for rock is proposed in which the rock is represented by a dense packing of non-uniform-sized circular or spherical particles that are bonded together at their contact points and whose mechanical behavior is simulated by the distinct element method using the two-and three-dimensional discontinuum programs PFC2D and PFC3D.
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About: This article is published in International Journal of Rock Mechanics and Mining Sciences. The article was published on 01 Dec 2004. The article focuses on the topics: Acoustic emission.
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Citations
Simulation and optimization of gyratory crusher performance based on the discrete element method
TL;DR: In this article, the impact of the mantle shaft angle, concave angle, eccentric angle, and mantle shaft speed on the gyratory crusher performance is explored by the method of combination of DEM simulation and response surface methodology (RSM).
33
Review of Discrete Element Method Simulations of Soil Tillage and Furrow Opening
Kojo Atta Aikins,Mustafa Ucgul,James B. Barr,Emmanuel Awuah,Diogenes L. Antille,Troy Jensen,J. Desbiolles +6 more
TL;DR: In this article , the authors focused on the various aspects of the application of the discrete element method (DEM) in the simulation of tillage and furrow opening for tool design optimization.
A viscoelastic micropolar peridynamic model for quasi-brittle materials incorporating loading-rate effects
Haitao Yu,Xizhuo Chen +1 more
TL;DR: In this paper, a viscoelastic micropolar peridynamic (VMPD) model is proposed to describe the nonlinear deformation and fracture behaviors of quasi-brittle materials considering loading-rate effects.
33
Micromechanical analysis of hydraulic fracturing in the toughness-dominated regime: implications to supercritical carbon dioxide fracturing
TL;DR: In this paper, the authors investigated the micromechanical behavior of supercritical carbon dioxide (SC-CO2) fracturing in both intact and fractured rock samples by using a coupled fluid-solid discrete element (DEM) model.
33
Micro-mechanical insights into the dynamics of crack propagation in snow fracture experiments.
TL;DR: In this paper, a discrete micro-mechanical model was used to study the dynamics of crack propagation in a highly porous weak layer buried within a stratified and metastable snowpack.
References
A discrete numerical model for granular assemblies
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
14.9K
•Journal Article
Discrete numerical model for granular assemblies.
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
14.1K
The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
Verification, Validation, and Confirmation of Numerical Models in the Earth Sciences
TL;DR: Verification and validation of numerical models of natural systems is impossible because natural systems are never closed and because model results are always nonunique.
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Fracture and Size Effect in Concrete and Other Quasibrittle Materials
Zdeněk P. Bažant,Jaime Planas +1 more
- 29 Dec 1997
TL;DR: In this paper, the authors used the Weibull-type approach to measure the effect of size effect on structural strength of a crack and its size effect in terms of the number of cracks and the size of the cracks.
2.8K