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Development of 2-D DEM (Discrete Element Method) algorithm to model ballast and sleeper  

김대상 (한국철도기술연구원 궤도토목연구본부)
황선근 (한국철도기술연구원 궤도토목연구본부)
Publication Information
Journal of the Korean Society for Railway / v.6, no.3, 2003 , pp. 174-178 More about this Journal
Abstract
This paper presents the development of 2-dimensional discrete element algorithm to generate circle and line elements for the simulation of the ballast and sleeper in railway. An example of randomly distributed circle elements show a good applicability of this algorithm for the modeling of the behaviors of ballast. The output about unbalaned force, particle velocity, and total energy conservation from the code is evaluated to check if the calculation is conducted properly.
Keywords
DEM(Discrete Element Method); Ballast; Sleeper;
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