Discrete element modeling of the single-particle crushing test for ballast stones |
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| Institution: | 1. Department of Civil & Construction Engineering, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Australia;2. Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Parkville, Australia;3. Geomechanics and Software Engineer, Itasca Consultants S.A.S, Écully, France |
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| Abstract: | In this paper, a discrete element modeling approach for the single-particle crushing test for irregularly shaped ballast stones is presented. Bonded spherical particles are used to represent test specimens. Parametric studies focusing on particle size, axial strain rate, particle aggregate size and number of bonds are performed. The selection criteria of these parameters are discussed from the perspective of railway engineering. The results indicate that the proposed modeling approach is reliable for simulating railway ballast stones and can thus be further used for simulations of ballast aggregations. |
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| Keywords: | DEM simulation Ballast crushing Bonded particle model |
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