COMBINATION OF FEM AND DEM WITH APPLICATION TO RAILWAY BALLAST-SLEEPER INTERACTION

Abstract eng:
Combination of two numerical methods - continuum based finite element method (FEM) and discrete based discrete element method (DEM) is presented in this contribution. The method is applicable to explicit dynamic problems and specifically will be applied to modeling of interaction between railway ballast (modeled by polyhedral discrete elements) and railway sleeper (modeled with standard finite elements). The problem is addressed from both theoretical and implementation point of view.

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