Energy absorption in erosion and fragmentation

Avi Uzi, Abraham Levy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The kinetic energy dissipation in particle impact is a fundamental problem that has tremendous effect in numerus engineering applications. This energy loss is commonly modelled as the coefficient of restitution when simulating particulate solids flow. However, this energy is dissipated in the target and in the particle which causes erosion and particle fragmentation. In this paper the relationship between the energy that is absorbed in an impact by one of the parties is investigated in terms of the erosion rate or particle attrition. This relationship is found to be correlated well by considering two model constants for deformation and cutting erosion, whereas for breakage one parameter needs to be calibrated in terms of the new surface area that is created during breakage. Additionally, the particle size effect is discussed and a general master curve is offered for modelling this phenomenon.
Original languageEnglish
Title of host publication13th International Conference on Bulk Materials Storage, Handling and Transportation (ICBMH 2019)
Place of PublicationBarton, ACT
PublisherEngineers Australia
Pages122-129
Number of pages8
Edition1st
ISBN (Print)9781925627299
StatePublished - 1 Jan 2019

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