The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests

The modelling of experimental distributions of breakage energy by compression and impact was carried out. In terms of our model, the part of the particle that is directly contacted with the stressing tool is admitted into the equation as a hem...

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Main Authors: Sergej Aman, Jürgen Tomas, Peter Müller, Haim Kalman, Yevgeny Rozenblat
Format: Article
Language:English
Published: Hosokawa Powder Technology Foundation 2014-03-01
Series:KONA Powder and Particle Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/kona/29/0/29_2011023/_pdf/-char/en
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author Sergej Aman
Jürgen Tomas
Peter Müller
Haim Kalman
Yevgeny Rozenblat
author_facet Sergej Aman
Jürgen Tomas
Peter Müller
Haim Kalman
Yevgeny Rozenblat
author_sort Sergej Aman
collection DOAJ
description The modelling of experimental distributions of breakage energy by compression and impact was carried out. In terms of our model, the part of the particle that is directly contacted with the stressing tool is admitted into the equation as a hemispherical asperity with known breakage energy distribution. The main contribution of stressing energy is accumulated by this hemispherical asperity that is responsible for crack generation and particle breakage. The breakage probability distribution of particles is calculated as a superposition of the breakage probabilities of asperities. Based on geometrical similarity, one can assume the same normalized log-normal size distribution of asperities for all tested particles of a given material. As a result, all experimental distributions of normalized breakage energy can be fitted with the same log-normal function for all particle sizes.
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spelling doaj.art-389d30e059114dc6947420564cb2d2912022-12-21T19:38:30ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0129022423510.14356/kona.2011023konaThe Investigation of Breakage Probability of Irregularly Shaped Particles by Impact testsSergej Aman0Jürgen Tomas1Peter Müller2Haim Kalman3Yevgeny Rozenblat4Mechanical Process Engineering, The Otto-von-Guericke UniversityMechanical Process Engineering, The Otto-von-Guericke UniversityMechanical Process Engineering, The Otto-von-Guericke UniversityLaboratory for Conveying and Handling of Particulate Solids, Department of Mechanical Engineering, Ben-Gurion University of the NegevLaboratory for Conveying and Handling of Particulate Solids, Department of Mechanical Engineering, Ben-Gurion University of the NegevThe modelling of experimental distributions of breakage energy by compression and impact was carried out. In terms of our model, the part of the particle that is directly contacted with the stressing tool is admitted into the equation as a hemispherical asperity with known breakage energy distribution. The main contribution of stressing energy is accumulated by this hemispherical asperity that is responsible for crack generation and particle breakage. The breakage probability distribution of particles is calculated as a superposition of the breakage probabilities of asperities. Based on geometrical similarity, one can assume the same normalized log-normal size distribution of asperities for all tested particles of a given material. As a result, all experimental distributions of normalized breakage energy can be fitted with the same log-normal function for all particle sizes.https://www.jstage.jst.go.jp/article/kona/29/0/29_2011023/_pdf/-char/enparticle breakagecompressionimpactbreakage probability
spellingShingle Sergej Aman
Jürgen Tomas
Peter Müller
Haim Kalman
Yevgeny Rozenblat
The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
KONA Powder and Particle Journal
particle breakage
compression
impact
breakage probability
title The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
title_full The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
title_fullStr The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
title_full_unstemmed The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
title_short The Investigation of Breakage Probability of Irregularly Shaped Particles by Impact tests
title_sort investigation of breakage probability of irregularly shaped particles by impact tests
topic particle breakage
compression
impact
breakage probability
url https://www.jstage.jst.go.jp/article/kona/29/0/29_2011023/_pdf/-char/en
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