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Abstract
Fractures in geomaterials do not grow as a continuous surface as they are affected by local interruptions and overlapping. These form bridges which being distributed all over the fracture constrict its opening. The effect of the distributed bridges is modelled by an equivalent Winkler layer whose stiffness represents the total bridge stiffness per unit area of the fracture. The paper develops approximate expressions for the stress intensity factors and volume (area in 2D) of fracture opening under uniform tensile load based on interpolating between the asymptotics of small and large fractures. A case of growth of a fracture with constricted opening under displacement-control loading is analysed. The presented results can be important in modelling of fracture propagation in heterogenous materials.
Original language | English |
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Title of host publication | Multiscale Processes of Instability, Deformation and Fracturing in Geomaterials - Proceedings of 12th International Workshop on Bifurcation and Degradation in Geomechanics |
Editors | Elena Pasternak, Arcady Dyskin |
Publisher | Springer Science + Business Media |
Pages | 136-143 |
Number of pages | 8 |
ISBN (Print) | 9783031222122 |
DOIs | |
Publication status | Published - 2023 |
Event | 12th International Workshop on Bifurcation and Degradation in Geomechanics - Perth, Australia Duration: 28 Nov 2022 → 1 Dec 2022 |
Publication series
Name | Springer Series in Geomechanics and Geoengineering |
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ISSN (Print) | 1866-8755 |
ISSN (Electronic) | 1866-8763 |
Conference
Conference | 12th International Workshop on Bifurcation and Degradation in Geomechanics |
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Abbreviated title | IWBDG 2022 |
Country/Territory | Australia |
City | Perth |
Period | 28/11/22 → 1/12/22 |
Fingerprint
Dive into the research topics of 'Asymptotic Modelling of Fractures with Constricted Opening'. Together they form a unique fingerprint.Projects
- 1 Finished
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Constricted hydraulic fracture opening
Dyskin, A. (Investigator 01), Pasternak, E. (Investigator 02), Gurevich, B. (Investigator 03), Lebedev, M. (Investigator 04), Bunger, A. (Investigator 05) & Shapiro, S. (Investigator 06)
ARC Australian Research Council
6/06/19 → 31/12/24
Project: Research