Effect of the characteristics of granular media on dynamic penetration test - Numerical study using 2D - DEM - Université Clermont Auvergne Access content directly
Conference Papers Year : 2017

Effect of the characteristics of granular media on dynamic penetration test - Numerical study using 2D - DEM

Quoc Anh Tran
  • Function : Author
  • PersonId : 950647
Bastien Chevalier
Connectez-vous pour contacter l'auteur
Pierre Breul

Abstract

The paper presents a numerical study on the influence of the properties of granular media on light dynamic penetration test results. A numerical model based on the Discrete Element Method (DEM) in 2 dimensions has been carried out. The model is able to reproduce the penetration tests in dynamic conditions. The model provide for each impact, the load–penetration curve that presents the evolution of reaction forces of granular media acting on the tip of the penetration test. The load – penetration curves are investigated in terms of tip resistance and analyzed by using the Discrete Fourier Transform in order to study the oscillations of the curves. The influence of the properties of granular media on the load-penetration curve has been investigated. We concentrated on the influence of particle friction and sample compacity. Besides the known results obtained in the literature by the dynamic tip resistance analysis for macroscopic response, we found that for a particle friction greater than 0.5, tip resistance and oscillations of signal are stable. Concerning the sample compacity, although variation of volume fraction is tight (φ = 0.817 – 0.844), a clear variation in terms of tip resistance and amplitude spectrum is highlighted.
Fichier principal
Vignette du fichier
epjconf162253.pdf (1.27 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01658314 , version 1 (07-12-2017)

Identifiers

Cite

Quoc Anh Tran, Bastien Chevalier, Pierre Breul. Effect of the characteristics of granular media on dynamic penetration test - Numerical study using 2D - DEM. Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media, 2017, Montpellier, France. ⟨10.1051/epjconf/201714016004⟩. ⟨hal-01658314⟩
115 View
144 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More