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 language | English |
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Title of host publication | 13th International Conference on Bulk Materials Storage, Handling and Transportation (ICBMH 2019) |
Place of Publication | Barton, ACT |
Publisher | Engineers Australia |
Pages | 122-129 |
Number of pages | 8 |
Edition | 1st |
ISBN (Print) | 9781925627299 |
State | Published - 1 Jan 2019 |