Journal ArticleDOI
The modeling of crack propagation and coalescence in rocks under uniaxial compression using the novel conjugated bond-based peridynamics
TLDR
In this paper, a conjugated bond-based peridynamics (BB-PD) model was proposed for crack propagation and coalescence behaviors in rock specimens containing pre-existing open flaws under uniaxial compression.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 2017-08-01. It has received 171 citations till now. The article focuses on the topics: Coalescence (physics) & Fracture mechanics.read more
Citations
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A 3-D conjugated bond-pair-based peridynamic formulation for initiation and propagation of cracks in brittle solids
TL;DR: In this article, a 3D conjugated bond-pair-based peridynamic model is proposed to simulate the initiation and propagation of cracks in brittle solids, where interacting forces between two material points within one horizon are not only related to the stretch of the bond, but also related to rotation of the conjugation angles.
Adaptive refinement and multiscalemodeling in 2d peridynamics
Florin Bobaru,Youn Doh Ha +1 more
TL;DR: In this paper, an adaptive refinement algorithm for the bond-based peridynamics model for solving statics problems in two dimensions that involve a variable horizon size is proposed, where the refinement is triggered by the value of the nonlocal strain energy density.
Journal ArticleDOI
Three-dimensional numerical study on the failure characteristics of intermittent fissures under compressive-shear loads
TL;DR: In this article, a 3D conjugated bond-pair-based peridynamic model is developed to comprehensively investigate failure characteristics of rock-like materials with intermittent fissures in the compressive-shear loading tests.
Journal ArticleDOI
Failure behavior and crack evolution mechanism of a non-persistent jointed rock mass containing a circular hole
Sheng-Qi Yang,Peng-Fei Yin,Yuan-Chao Zhang,Miao Chen,Xiaoping Zhou,Hongwen Jing,Qiangyong Zhang +6 more
TL;DR: In this paper, a model of non-persistent jointed rock masses containing a circular hole is presented and tested under uniaxial compression, and the authors show that the peak strength and elastic modulus of the nonpersistent joints display a U-type variation with respect to the joint inclination.
Journal ArticleDOI
Fracturing Behavior Study of Three-Flawed Specimens by Uniaxial Compression and 3D Digital Image Correlation: Sensitivity to Brittleness
TL;DR: In this paper, the effects of the brittleness of preflawed rock-like materials on crack initiation, propagation, and coalescence behaviors in three flaw-contained specimens were investigated.
References
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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.
Journal ArticleDOI
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.
Journal ArticleDOI
A numerical approach to the testing of the fission hypothesis.
TL;DR: A finite-size particle scheme for the numerical solution of two-and three-dimensional gas dynamical problems of astronomical interest is described and tested in this article, which is then applied to the fission problem for optically thick protostars.
Journal ArticleDOI
Computer simulation of local order in condensed phases of silicon
TL;DR: A model potential-energy function comprising both two- and three-atom contributions is proposed to describe interactions in solid and liquid forms of Si, suggesting a temperature-independent inherent structure underlies the liquid phase, just as for ``simple'' liquids with only pair interactions.
Journal ArticleDOI
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.