Damage in cohesive granular materials: simulations and geophysical implications
The aim of this paper is to test a simple damage model of a cohesive granular medium to study the relationship between the damage and velocity of elastic waves. Our numerical experiments of edometric compression show that the microscopic deformation quickly becomes very heterogeneous, while our simu...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Académie des sciences
2023-04-01
|
| Series: | Comptes Rendus. Géoscience |
| Subjects: | |
| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.203/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1825206298858225664 |
|---|---|
| author | Canel, Vincent Campillo, Michel Jia, Xiaoping Ionescu, Ioan R. |
| author_facet | Canel, Vincent Campillo, Michel Jia, Xiaoping Ionescu, Ioan R. |
| author_sort | Canel, Vincent |
| collection | DOAJ |
| description | The aim of this paper is to test a simple damage model of a cohesive granular medium to study the relationship between the damage and velocity of elastic waves. Our numerical experiments of edometric compression show that the microscopic deformation quickly becomes very heterogeneous, while our simulations of elastic waves propagation show that a small amount of damage induces a dramatic decrease in the elastic velocity. This shows that cohesive discrete media are very sensitive to strain field heterogeneity, and that the wave velocities in these media can measure subtle transient deformation processes, such as earthquake initiation phases. |
| format | Article |
| id | doaj-art-4975ed75375c4559a0494e40427e2854 |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-4975ed75375c4559a0494e40427e28542025-02-07T10:42:15ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252023-04-01356S412514510.5802/crgeos.20310.5802/crgeos.203Damage in cohesive granular materials: simulations and geophysical implicationsCanel, Vincent0https://orcid.org/0000-0003-4286-8302Campillo, Michel1https://orcid.org/0000-0001-6971-4499Jia, Xiaoping2Ionescu, Ioan R.3https://orcid.org/0000-0003-0760-4870ISTerre, CNRS, Grenoble Alpes University, 38000 Grenoble, France; Institut Langevin, CNRS, ESPCI Paris, PSL University, 75005 Paris, FranceISTerre, CNRS, Grenoble Alpes University, 38000 Grenoble, FranceInstitut Langevin, CNRS, ESPCI Paris, PSL University, 75005 Paris, FranceLSPM, CNRS, Sorbonne Paris Nord University, 93430 Villetaneuse France and IMAR, Romanian Academy, Bucharest, RomaniaThe aim of this paper is to test a simple damage model of a cohesive granular medium to study the relationship between the damage and velocity of elastic waves. Our numerical experiments of edometric compression show that the microscopic deformation quickly becomes very heterogeneous, while our simulations of elastic waves propagation show that a small amount of damage induces a dramatic decrease in the elastic velocity. This shows that cohesive discrete media are very sensitive to strain field heterogeneity, and that the wave velocities in these media can measure subtle transient deformation processes, such as earthquake initiation phases.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.203/Granular mediumDamageElastic waveSimulationEarthquake |
| spellingShingle | Canel, Vincent Campillo, Michel Jia, Xiaoping Ionescu, Ioan R. Damage in cohesive granular materials: simulations and geophysical implications Comptes Rendus. Géoscience Granular medium Damage Elastic wave Simulation Earthquake |
| title | Damage in cohesive granular materials: simulations and geophysical implications |
| title_full | Damage in cohesive granular materials: simulations and geophysical implications |
| title_fullStr | Damage in cohesive granular materials: simulations and geophysical implications |
| title_full_unstemmed | Damage in cohesive granular materials: simulations and geophysical implications |
| title_short | Damage in cohesive granular materials: simulations and geophysical implications |
| title_sort | damage in cohesive granular materials simulations and geophysical implications |
| topic | Granular medium Damage Elastic wave Simulation Earthquake |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.203/ |
| work_keys_str_mv | AT canelvincent damageincohesivegranularmaterialssimulationsandgeophysicalimplications AT campillomichel damageincohesivegranularmaterialssimulationsandgeophysicalimplications AT jiaxiaoping damageincohesivegranularmaterialssimulationsandgeophysicalimplications AT ionescuioanr damageincohesivegranularmaterialssimulationsandgeophysicalimplications |