Imperial College London
Alternate

Dr Paula Alejandra Gago

Faculty of Engineering, Department of Earth Science & Engineering

 
 
 
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Contact

 

p.gago

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gago:2020:10.1103/PhysRevE.102.040901,
author = {Gago, P and Konstantinou, C and Biscontin, G and King, P},
doi = {10.1103/PhysRevE.102.040901},
journal = {Physical Review E: Statistical, Nonlinear, and Soft Matter Physics},
title = {Stress inhomogeneity effect on fluid-induced fracture behaviour into weakly consolidated granular systems},
url = {http://dx.doi.org/10.1103/PhysRevE.102.040901},
volume = {102},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We study the effect of stress inhomogeneity on the behavior of fluid-driven fracture development in weakly consolidated granular systems. Using numerical models we investigate the change in fracture growth rate and fracture pattern structure in unconsolidated granular packs (also referred to as soft-sands) as a function of the change in the confining stresses applied to the system. Soft-sands do not usually behave like brittle, linear elastic materials, and as a consequence, poroelastic models are often not applicable to describe their behavior. By making a distinction between “cohesive” and “compressive” grain-grain contact forces depending on their magnitude, we propose an expression that describes the fluid opening pressure as a function of the mean value and the standard deviation of the “compressive stress” distribution. We also show that the standard deviation of this distribution can be related with the extent to which fracture “branches” reach into the material.
AU  - Gago,P
AU  - Konstantinou,C
AU  - Biscontin,G
AU  - King,P
DO  - 10.1103/PhysRevE.102.040901
PY  - 2020///
SN  - 1539-3755
TI  - Stress inhomogeneity effect on fluid-induced fracture behaviour into weakly consolidated granular systems
T2  - Physical Review E: Statistical, Nonlinear, and Soft Matter Physics
UR  - http://dx.doi.org/10.1103/PhysRevE.102.040901
UR  - http://hdl.handle.net/10044/1/83826
VL  - 102
ER  -
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