EPJ Web Conf.
Volume 249, 2021Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
|Number of page(s)||4|
|Published online||07 June 2021|
Elastic wave velocity and attenuation in granular material
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China.
2 Multi Scale Mechanics, Faculty of Engineering Technology, University of Twente, Enschede, Netherlands.
3 Construction Management & Engineering, Faculty of Engineering Technology, University of Twente, Enschede, Netherlands.
* Corresponding author: firstname.lastname@example.org
Published online: 7 June 2021
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.
A video is available at https://doi.org/10.48448/b3es-6f75
© The Authors, published by EDP Sciences, 2021
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