Relative Displacement Method for Track-Structure Interaction
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AuthorSchanack, Frank; Ramón Ramos, Óscar; Reyes Cancio, Juan Patricio; Pantaleón Prieto, Marcos Jesús
ABSTRACT. The track-structure interaction effects are usually analysed with conventional FEM programs, where it is difficult to implement the complex track-structure connection behaviour, which is nonlinear, elastic-plastic and depends on the vertical load. The authors developed an alternative analysis method, which they call the relative displacement method. It is based on the calculation of deformation states in single DOF element models that satisfy the boundary conditions. For its solution, an iterative optimisation algorithm is used. This method can be implemented in any programming language or analysis software. A comparison with ABAQUS calculations shows a very good result correlation and compliance with the standard’s specifications.
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