Experimental and DEM studies on the normal coefficient of restitution of grain-block systems in the presence of thick and thin water layers under low-velocity impacts
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 104711 |
Journal / Publication | Computers and Geotechnics |
Volume | 146 |
Online published | 7 Apr 2022 |
Publication status | Published - Jun 2022 |
Link(s)
Abstract
In the present work, an experimental study was carried out investigating the influence of water at the contacts of grain-block systems subjected to low-velocity impacts using two different configurations as (i) impacts in the presence of a thick liquid layer with water thickness similar to that of the grain diameter and (ii) impacts in the presence of thin liquid layer in the form of water droplets. A parametric study was performed to understand the major contributing mechanisms in these impact tests. Additionally, part of the experimental data, in terms of the normal coefficient of restitution, was used to calibrate a numerical model using the discrete element method (DEM). The DEM analyses provided further insights into the impact behavior of grain-block systems, and an attempt was made to back-calculate the yield velocity and contact forces, combining the numerical results with analytical expressions.
Research Area(s)
- Coefficient of restitution, Solid-water interaction, Wet impacts, Yield velocity
Bibliographic Note
Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).
Citation Format(s)
Experimental and DEM studies on the normal coefficient of restitution of grain-block systems in the presence of thick and thin water layers under low-velocity impacts. / Luo, Lina; Kasyap, Sathwik S.; He, Huan et al.
In: Computers and Geotechnics, Vol. 146, 104711, 06.2022.
In: Computers and Geotechnics, Vol. 146, 104711, 06.2022.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review