Abstract
Compression and impact tests have been used to study the deformation and breakage behaviour of spherical granules (γ-Al2O3, zeolites 13X and 4A, sodium benzoate). The elastic compression behaviour of granules is described by means of force-displacement curves and by application of Hertz’ contact theory. An elastic-plastic contact model is proposed to describe the deformation behaviour of elastic-plastic granules. The breakage probability is determined by using particle size distributions after the impacts at different velocities and described by a modified Weibull distribution. DEM is applied to analyse the dynamics and mechanisms of microscopic breakage behaviour of the experimentally investigated zeolite granules. The arrangement of the primary particles inside a granule, their coordination number and binder strength have been varied to obtain the breakage probability depending on the impact velocity.
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Antonyuk, S., Tomas, J., Heinrich, S. (2008). Micro-Macro Deformation and Breakage Behaviour of Spherical Granules. In: Bertram, A., Tomas, J. (eds) Micro-Macro-interaction. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85715-0_17
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DOI: https://doi.org/10.1007/978-3-540-85715-0_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-85714-3
Online ISBN: 978-3-540-85715-0
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