Elastic wave velocity and attenuation in granular material

Fan Jia*, Hongyang Cheng, Sihong Liu, Vanessa Magnanimo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Discrete Elements Method simulations are carried out to investigate waves propagation in isotropic, frictional granular media. The focus is on the effects of confining pressure, microstructure and input frequency on both wave velocity and attenuation. The latter is described via the seismic quality factor Q and three different measurement approaches are compared, in time and frequency domain. The simulation data validate previous findings on the scaling of wave velocity with confining pressure and coordination number. The quality factor Q shows a non-monotonic behavior with input frequency.
Original languageEnglish
Title of host publicationPowders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
DOIs
Publication statusPublished - 7 Jun 2021
Event9th International Conference on Micromechanics on Granular Media, Powders and Grains 2021 - Virtual Conference, Argentina
Duration: 5 Jul 20216 Aug 2021
Conference number: 9
https://www.powdersandgrains.org/

Publication series

NameEPJ Web of Conferences
Volume249

Conference

Conference9th International Conference on Micromechanics on Granular Media, Powders and Grains 2021
Abbreviated titlePowders and Grains 2021
Country/TerritoryArgentina
CityVirtual Conference
Period5/07/216/08/21
Internet address

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