Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

Damage in cohesive granular materials: simulations and geophysical implications

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Contributors:
      Institut des Sciences de la Terre (ISTerre); Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA); Institut Langevin - Ondes et Images (UMR7587) (IL); Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Laboratoire des Sciences des Procédés et des Matériaux (LSPM); Institut Galilée-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord; Institute of Mathematics of the Romanian Academy Bucharest (IMAR); IRI acknowledges support of the Romanian Ministry of Research (project number PN-III-P4-PCE-2021-0921 within PNCDI III).; European Project: No. 742335,ERC F-IMAGE
    • بيانات النشر:
      HAL CCSD
      Académie des sciences (Paris)
    • الموضوع:
      2023
    • Collection:
      Université Paris 13: HAL
    • نبذة مختصرة :
      International audience ; 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 mi- croscopic deformation quickly becomes very heterogeneous, while our simulations of elastic waves propagation show that a small amount of damage induces a dra- matic 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.
    • Relation:
      info:eu-repo/grantAgreement//No. 742335/EU/Seismic Functional Imaging of the Brittle Crust/ERC F-IMAGE; hal-03997648; https://hal.science/hal-03997648; https://hal.science/hal-03997648/document; https://hal.science/hal-03997648/file/52.CRGEOS_2023__355_S3_A2_0.pdf
    • الرقم المعرف:
      10.5802/crgeos.203
    • Rights:
      http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.611FFB39