Localised strain in fissured clays : The combined effect of fissure orientation and confining pressure
(2022) In Acta Geotechnica 17(5). p.1585-1603- Abstract
This paper reports the main results of an experimental study on the mechanics of intensely fissured natural clays, extending our previous studies on scaly clay from Santa Croce di Magliano. While previous work focused on the influence of the orientation of fissures with respect to the loading direction, the present investigation specifically explores an additional, important variable: the stress level. The combined effect of fissure orientation and confining pressure was studied by setting up a large campaign of plane strain compression experiments, in which different combinations of these two variables were tested. Conventional global stress–strain measurements were complemented by measuring displacement and strain fields through... (More)
This paper reports the main results of an experimental study on the mechanics of intensely fissured natural clays, extending our previous studies on scaly clay from Santa Croce di Magliano. While previous work focused on the influence of the orientation of fissures with respect to the loading direction, the present investigation specifically explores an additional, important variable: the stress level. The combined effect of fissure orientation and confining pressure was studied by setting up a large campaign of plane strain compression experiments, in which different combinations of these two variables were tested. Conventional global stress–strain measurements were complemented by measuring displacement and strain fields through two-dimensional digital image correlation. Such rich information provided a clear and consistent picture of the interplay between fissure orientation and stress level and revealed complex deformation patterns, which cannot be ignored for a proper interpretation of the material response.
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- author
- Tudisco, Erika LU ; Vitone, Claudia ; Mondello, Cristina ; Viggiani, Gioacchino ; Athanasopoulos, Stefanos LU ; Hall, Stephen A. LU and Cotecchia, Federica
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Confining pressure, Digital image correlation (DIC), Fissure inclination, Fissured clay, Localised deformation, Plane strain
- in
- Acta Geotechnica
- volume
- 17
- issue
- 5
- pages
- 1585 - 1603
- publisher
- Springer
- external identifiers
-
- scopus:85113398328
- ISSN
- 1861-1125
- DOI
- 10.1007/s11440-021-01329-z
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
- id
- 99e7db31-416d-48d9-a156-775db5180f88
- date added to LUP
- 2021-09-08 14:01:39
- date last changed
- 2022-11-08 03:59:33
@article{99e7db31-416d-48d9-a156-775db5180f88, abstract = {{<p>This paper reports the main results of an experimental study on the mechanics of intensely fissured natural clays, extending our previous studies on scaly clay from Santa Croce di Magliano. While previous work focused on the influence of the orientation of fissures with respect to the loading direction, the present investigation specifically explores an additional, important variable: the stress level. The combined effect of fissure orientation and confining pressure was studied by setting up a large campaign of plane strain compression experiments, in which different combinations of these two variables were tested. Conventional global stress–strain measurements were complemented by measuring displacement and strain fields through two-dimensional digital image correlation. Such rich information provided a clear and consistent picture of the interplay between fissure orientation and stress level and revealed complex deformation patterns, which cannot be ignored for a proper interpretation of the material response.</p>}}, author = {{Tudisco, Erika and Vitone, Claudia and Mondello, Cristina and Viggiani, Gioacchino and Athanasopoulos, Stefanos and Hall, Stephen A. and Cotecchia, Federica}}, issn = {{1861-1125}}, keywords = {{Confining pressure; Digital image correlation (DIC); Fissure inclination; Fissured clay; Localised deformation; Plane strain}}, language = {{eng}}, number = {{5}}, pages = {{1585--1603}}, publisher = {{Springer}}, series = {{Acta Geotechnica}}, title = {{Localised strain in fissured clays : The combined effect of fissure orientation and confining pressure}}, url = {{http://dx.doi.org/10.1007/s11440-021-01329-z}}, doi = {{10.1007/s11440-021-01329-z}}, volume = {{17}}, year = {{2022}}, }