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The effect of the coordination number on particle crushing

Conference Paper


Abstract


  • Multi-particle crushing tests were carried out using different particle configurations to investigate the effects of the coordination number on the failure stress of a single particle. Coarse grains of quartz and calcium-carbonate sands were tested, having sizes between 1 and 2.6 mm. The Weibull theory was applied to calculate the probability of surviving grain splitting. The failure stresses obtained for coordination numbers of four and six showed significant differences compared to a traditional single-particle crushing test. A high-speed camera was used to capture the failure mechanisms of the grains. Quartz grains failed in a brittle and sudden manner, whereas the carbonate particles failed in a more ductile way, regardless of the particle asperities. © 2015 Taylor & Francis Group.

Publication Date


  • 2015

Citation


  • Todisco, M. C., Coop, M. R., Guo, Q., & Senetakis, K. (2015). The effect of the coordination number on particle crushing. In Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 Vol. 2 (pp. 1063-1068). doi:10.1201/b17395-191

Scopus Eid


  • 2-s2.0-84907321146

Start Page


  • 1063

End Page


  • 1068

Volume


  • 2

Abstract


  • Multi-particle crushing tests were carried out using different particle configurations to investigate the effects of the coordination number on the failure stress of a single particle. Coarse grains of quartz and calcium-carbonate sands were tested, having sizes between 1 and 2.6 mm. The Weibull theory was applied to calculate the probability of surviving grain splitting. The failure stresses obtained for coordination numbers of four and six showed significant differences compared to a traditional single-particle crushing test. A high-speed camera was used to capture the failure mechanisms of the grains. Quartz grains failed in a brittle and sudden manner, whereas the carbonate particles failed in a more ductile way, regardless of the particle asperities. © 2015 Taylor & Francis Group.

Publication Date


  • 2015

Citation


  • Todisco, M. C., Coop, M. R., Guo, Q., & Senetakis, K. (2015). The effect of the coordination number on particle crushing. In Geomechanics from Micro to Macro - Proceedings of the TC105 ISSMGE International Symposium on Geomechanics from Micro to Macro, IS-Cambridge 2014 Vol. 2 (pp. 1063-1068). doi:10.1201/b17395-191

Scopus Eid


  • 2-s2.0-84907321146

Start Page


  • 1063

End Page


  • 1068

Volume


  • 2