Imperial College London
Portrait Picture

Dr Adriana Paluszny

Faculty of Engineering, Department of Earth Science & Engineering

Reader in Computational Geomechanics
 
 
 
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Contact

 

+44 (0)20 7594 7435apaluszn

 
 
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Location

 

RSM 2.48Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Thomas:2017:10.1002/2017JB014234,
author = {Thomas, RN and Paluszny, A and Zimmerman, RW},
doi = {10.1002/2017JB014234},
journal = {Journal of Geophysical Research. Solid Earth},
pages = {7698--7717},
title = {Quantification of fracture interaction using stress intensity factor variation maps},
url = {http://dx.doi.org/10.1002/2017JB014234},
volume = {122},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Accurate and flexible models of fracture interaction are sought after in the fields of mechanics and geology. Stress intensity factors (SIFs) quantify the energy concentrated at the fracture tips and are perturbed from their isolated values when two fractures are close to one another. Using a three-dimensional finite element fracture mechanics code to simulate static fractures in tension and compression, interaction effects are examined. SIF perturbations are characterized by introducing three interaction measures: the circumferential and maximum SIF perturbation provide the “magnitude” of the effect of interaction, and the amplification to shielding ratio quantifies the balance between increased and decreased SIFs along the tip. These measures are used to demonstrate the change in interaction with fracture separation and to find the separation at which interaction becomes negligible. Interaction maps are constructed by plotting the values of the interaction measures for a static fracture as a second fracture is moved around it. These maps are presented for several common fracture orientations in tension. They explore interaction by highlighting regions in which growth is more likely to occur and where fractures will grow into nonplanar geometries. Interaction maps can be applied to fracture networks with multiple discontinuities to analyze the effect of geometric variations on fracture interaction.
AU  - Thomas,RN
AU  - Paluszny,A
AU  - Zimmerman,RW
DO  - 10.1002/2017JB014234
EP  - 7717
PY  - 2017///
SN  - 2169-9356
SP  - 7698
TI  - Quantification of fracture interaction using stress intensity factor variation maps
T2  - Journal of Geophysical Research. Solid Earth
UR  - http://dx.doi.org/10.1002/2017JB014234
UR  - http://hdl.handle.net/10044/1/51353
VL  - 122
ER  -
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