Journal ArticleDOI
Plastic compaction of cemented granular materials
Jack Dvorkin,D. Yale +1 more
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TLDR
In this article, the authors analytically relate hydrostatic stress to strain in a random dense pack of identical spheres cemented at their contacts, and show that, as loading increases and cement becomes plastic, a finite (Hertzian) direct contact area between the spheres necessarily has to develop and progress.About:
This article is published in Computers and Geotechnics.The article was published on 1997-01-01. It has received 9 citations till now. The article focuses on the topics: Hydrostatic stress & Aggregate (composite).read more
Citations
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Journal ArticleDOI
A thermomechanical constitutive model for cemented granular materials with quantifiable internal variables. Part I-Theory
Alessandro Tengattini,Alessandro Tengattini,Arghya Das,Giang D. Nguyen,Gioacchino Viggiani,Stephen Hall,Itai Einav +6 more
TL;DR: In this paper, the authors introduce a thermomechanical continuum constitutive model for cemented granular materials, which is fully consistent with the original Breakage Mechanics model and uses measurable and micro-mechanics based internal variables, describing the evolution of dominant inelastic processes.
Dissertation
Comportement mécanique d'un milieu granulaire injecté par un coulis de ciment : étude expérimentale et modélisation micromécanique
TL;DR: In this article, the authors propose an approach to model the comportement of a vierge and injecte in a polycristal poreux, where le porosite finale is modeled as a cascade.
Journal ArticleDOI
Effective properties of a cemented or an injected granular material
TL;DR: In this paper, the macroscopic elastic properties of injected or cemented sands are derived from the characteristics of the constituents and the analysis of the microstructure using a multi-scale modelling approach.
Journal ArticleDOI
The effect of cement material properties on the fracture patterns developing within cement-covered brittle sphere under impact
TL;DR: In this paper, a comparison of these fracture patterns between different resin compositions highlights two distinctive fracture mechanisms, namely, cement-focused fracture and grain focused fracture, which is affected by the interface adhesion toughness.
Journal ArticleDOI
Fracture and fragmentation patterns within a single cemented glass bead under impact
TL;DR: In this article, the authors used X-ray micro-computed tomography (X-ray) to quantitatively analyze the locality of damage within a single brittle glass bead covered by epoxy cement and showed that damage is most likely to occur along the central loading axis area and forms cracks propagating through the bead along the impact direction.
References
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Book
Acoustics of Porous Media
TL;DR: The physical aspects of wave propagation in porous media are discussed in this article, where the authors present a review of experimental techniques and field applications, including wave propagation and vibration in viscoelastic media, and experimental techniques for measuring velocities and attenuations.
Journal ArticleDOI
Elasticity of high‐porosity sandstones: Theory for two North Sea data sets
Jack Dvorkin,Amos Nur +1 more
TL;DR: In this article, the authors analyzed two laboratory data sets obtained on high-porosity rock samples from the North Sea and found that the velocities observed are unusual in that they seem to disagree with some simple models based on porosity.
Journal ArticleDOI
Effective properties of cemented granular materials
Jack Dvorkin,Amos Nur,Hezhu Yin +2 more
TL;DR: In this paper, an analytical model is developed to describe the effective elastic properties of a cemented granular material that is modeled as a random packing of identical spheres, and the solution reveals a peculiar distribution pattern of normal and shear stresses at the cemented grain contacts.