https://doi.org/10.1051/epjconf/202124907001
Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach
1
Edinburgh Napier University, School of Engineering and the Built Environment, Merchiston Campus, Edinburgh, EH10 5DT, U.K.
2
Óbuda University, EKIK HBM Systems Research Center, 1034 Bécsi út 96/B, Budapest, Hungary.
* Corresponding author: d.barreto@napier.ac.uk
Published online: 7 June 2021
It is well recognised that particle breakage in granular materials is affected by stress level, stress path, initial density, and particle size distribution (PSD), amongst others. Furthermore, it has been shown that breakage has a significant influence on the stress-strain behaviour of soils. This paper compares a commonly used breakage parameter with grading entropy coordinates. Such coordinates enable for the representation of any PSD as a single point in a Cartesian coordinate plane. Hence, the evolution of PSD changes may be easily tracked. This paper aims to demonstrate that grading entropy coordinates are as (or more) effective than other breakage parameters, whilst providing additional insight. On the basis of limited data it is shown that grading entropy coordinates are able to capture the dependence of breakage on stress level, stress path and initial PSD.
A video is available at https://doi.org/10.48448/96y9-w622
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
