Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach

Leak, James; Barreto, Daniel; Dimitriadi, Vasiliki; Imre, Emoke

Abstract

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.

Citation

Leak, J., Barreto, D., Dimitriadi, V., & Imre, E. (2021, July). Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach. Presented at Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media, Buenos Aires (Virtual), Argentina

• Presentation Conference Type: Conference Paper (published)
• Conference Name: Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
• Start Date: Jul 5, 2021
• End Date: Aug 6, 2021
• Acceptance Date: Mar 17, 2021
• Online Publication Date: Jun 7, 2021
• Publication Date: 2021
• Deposit Date: Aug 10, 2021
• Publicly Available Date: Aug 11, 2021
• Publisher: EDP Sciences
• Volume: 249
• Book Title: Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
• DOI: https://doi.org/10.1051/epjconf/202124907001
• Public URL: http://researchrepository.napier.ac.uk/Output/2792727