Journal ArticleDOI
Fracture coalescence in rock-type materials under uniaxial and biaxial compression
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TLDR
In this paper, the authors investigate fracture coalescence in gypsum specimens under uniaxial and biaaxial compression and show that cracks start at the flaw tip and propagate out of plane as either tensile or shear cracks.About:
This article is published in International Journal of Rock Mechanics and Mining Sciences.The article was published on 1998-10-01. It has received 858 citations till now. The article focuses on the topics: Coalescence (physics).read more
Citations
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Crack Coalescence in Molded Gypsum and Carrara Marble: Part 1. Macroscopic Observations and Interpretation
TL;DR: In this paper, a high speed video system was used, which allowed us to precisely observe the cracking mechanisms and identified nine crack coalescence categories with different crack types and trajectories.
Journal ArticleDOI
An experimental and numerical study of fracture coalescence in pre-cracked specimens under uniaxial compression
Heekwang Lee,Seokwon Jeon +1 more
TL;DR: In this paper, the authors presented crack initiation, propagation and coalescence at or near pre-existing open cracks or flaws in a specimen under uniaxial compression, where three materials were used, PMMA (Poly Methyl MethAcrylate), Diastone (types of molded gypsum), and Hwangdeung granite.
Journal ArticleDOI
Analysis of crack coalescence in rock-like materials containing three flaws—Part I: experimental approach
TL;DR: In this paper, the authors investigated the crack coalescence and peak strength of rock-like materials containing three parallel frictional flaws and found that the failure mechanism strongly depends on the cracks coalescence pattern between pre-existing flaws.
Journal ArticleDOI
Systematic evaluation of cracking behavior in specimens containing single flaws under uniaxial compression
TL;DR: In this paper, the results of an experimental study in which molded gypsum and Carrara marble specimens containing a pre-existing flaw were tested in uniaxial compression were presented.
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Cracking Processes in Rock-Like Material Containing a Single Flaw Under Uniaxial Compression: A Numerical Study Based on Parallel Bonded-Particle Model Approach
TL;DR: In this paper, a parallel bond model was used to numerically simulate the cracking process in rock-like material containing a single flaw under uniaxial vertical compression, where the inclination of the preexisting flaw was found to have a strong influence on the crack initiation and propagation patterns.
References
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Journal ArticleDOI
Behavior of Concrete Under Biaxial Stresses
Helmut B. Kupfer,Kurt H. Gerstle +1 more
TL;DR: In this paper, the results of an extensive series of tests of three types of concrete under biaxial loadings are used to develop stress-strain relations for concrete subjected to bialastic stress states, by means of a decomposition of the stresses and strains into their hydrostatic and deviatoric portions.
Journal ArticleDOI
Behavior of Concrete Under Biaxial Stresses
TL;DR: In this article, the authors report that the BIAXIAL TENSILE STRENGTH of CONCRETE is APPROXIMATELY EQUAL to its UNIAXial TENSION STRENGTH.
Journal ArticleDOI
Brittle Failure in Compression: Splitting, Faulting and Brittle-Ductile Transition
H. Horii,Sia Nemat-Nasser +1 more
TL;DR: In this paper, a simple two-dimensional mathematical model is proposed for the analysis of the brittle-ductile transition process, the corresponding elasticity boundary-value problem is formulated in terms of singular integral equations, the solution method is given, and numerical results are obtained and their physical implications are discussed.
Journal ArticleDOI
Brittle fracture propagation in rock under compression
E. Hoek,Z. T. Bieniawski +1 more
TL;DR: In this paper, the results of a single Grifith crack in a biaxial compressive stress field are reported, and it is concluded that Griffith's theory of brittle fracture offers a reliable prediction of the fracture initiation stress but that the resulting fracture propagation froth a single crack cannot account for the macroscopic fracture of a specimen.
Journal ArticleDOI
Brittle fracture in compression
TL;DR: In this article, the initiation and propagation of microfractures and their contribution to material failure in compression are examined, and the early part of the fracture process, the lateral and the axial yield points of the stress-strain curves, are identified with the onset of micro-fracture, respectively at the tensile and the compressive stress concentrations of the elastic flaw boundary.
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