Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice
International audience Coulombic faulting, a concept formulated more than two centuries ago, still remains pertinent in describing the brittle compressive failure of various materials, including rocks and ice. Many questions remain, however, about the physical processes underlying this macroscopic p...
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ftunivnantes:oai:HAL:insu-00421266v1 2023-05-15T18:17:54+02:00 Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice Weiss, Jérôme Schulson, E.M Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Thayer School of Engineering Dartmouth College Hanover 2009 https://hal-insu.archives-ouvertes.fr/insu-00421266 https://doi.org/10.1088/0022-3727/42/21/214017 en eng HAL CCSD IOP Publishing info:eu-repo/semantics/altIdentifier/doi/10.1088/0022-3727/42/21/214017 insu-00421266 https://hal-insu.archives-ouvertes.fr/insu-00421266 doi:10.1088/0022-3727/42/21/214017 ISSN: 0022-3727 EISSN: 1361-6463 Journal of Physics D: Applied Physics https://hal-insu.archives-ouvertes.fr/insu-00421266 Journal of Physics D: Applied Physics, 2009, 42 (21), pp.214017. ⟨10.1088/0022-3727/42/21/214017⟩ 92.10.Rw 91.55.Fg 91.10.Kg [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2009 ftunivnantes https://doi.org/10.1088/0022-3727/42/21/214017 2023-03-01T00:43:19Z International audience Coulombic faulting, a concept formulated more than two centuries ago, still remains pertinent in describing the brittle compressive failure of various materials, including rocks and ice. Many questions remain, however, about the physical processes underlying this macroscopic phenomenology. This paper reviews the progress made in these directions during the past few years through the study of ice and its mechanical behaviour in both the laboratory and the field. Fault triggering is associated with the formation of specific features called comb-cracks and involves frictional sliding at the micro(grain)-scale. Similar mechanisms are observed at geophysical scales within the sea ice cover. This scale-independent physics is expressed by the same Coulombic phenomenology from laboratory to geophysical scales, with a very similar internal friction coefficient (μ ≈ 0.8). On the other hand, the cohesion strongly decreases with increasing spatial scale, reflecting the role of stress concentrators on fault initiation. Strong similarities also exist between ice and other brittle materials such as rocks and minerals and between faulting of the sea ice cover and Earth's crust, arguing for the ubiquitous nature of the underlying physics. Article in Journal/Newspaper Sea ice Université de Nantes: HAL-UNIV-NANTES Journal of Physics D: Applied Physics 42 21 214017 |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
92.10.Rw 91.55.Fg 91.10.Kg [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
92.10.Rw 91.55.Fg 91.10.Kg [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Weiss, Jérôme Schulson, E.M Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
topic_facet |
92.10.Rw 91.55.Fg 91.10.Kg [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience Coulombic faulting, a concept formulated more than two centuries ago, still remains pertinent in describing the brittle compressive failure of various materials, including rocks and ice. Many questions remain, however, about the physical processes underlying this macroscopic phenomenology. This paper reviews the progress made in these directions during the past few years through the study of ice and its mechanical behaviour in both the laboratory and the field. Fault triggering is associated with the formation of specific features called comb-cracks and involves frictional sliding at the micro(grain)-scale. Similar mechanisms are observed at geophysical scales within the sea ice cover. This scale-independent physics is expressed by the same Coulombic phenomenology from laboratory to geophysical scales, with a very similar internal friction coefficient (μ ≈ 0.8). On the other hand, the cohesion strongly decreases with increasing spatial scale, reflecting the role of stress concentrators on fault initiation. Strong similarities also exist between ice and other brittle materials such as rocks and minerals and between faulting of the sea ice cover and Earth's crust, arguing for the ubiquitous nature of the underlying physics. |
author2 |
Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Thayer School of Engineering Dartmouth College Hanover |
format |
Article in Journal/Newspaper |
author |
Weiss, Jérôme Schulson, E.M |
author_facet |
Weiss, Jérôme Schulson, E.M |
author_sort |
Weiss, Jérôme |
title |
Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
title_short |
Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
title_full |
Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
title_fullStr |
Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
title_full_unstemmed |
Coulombing faulting from the grain scale to the geophysical scale: Lessons from ice |
title_sort |
coulombing faulting from the grain scale to the geophysical scale: lessons from ice |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00421266 https://doi.org/10.1088/0022-3727/42/21/214017 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
ISSN: 0022-3727 EISSN: 1361-6463 Journal of Physics D: Applied Physics https://hal-insu.archives-ouvertes.fr/insu-00421266 Journal of Physics D: Applied Physics, 2009, 42 (21), pp.214017. ⟨10.1088/0022-3727/42/21/214017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/0022-3727/42/21/214017 insu-00421266 https://hal-insu.archives-ouvertes.fr/insu-00421266 doi:10.1088/0022-3727/42/21/214017 |
op_doi |
https://doi.org/10.1088/0022-3727/42/21/214017 |
container_title |
Journal of Physics D: Applied Physics |
container_volume |
42 |
container_issue |
21 |
container_start_page |
214017 |
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1766193386240344064 |