The Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH
Online ISSN : 2424-3167
セッションID: 353912
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353912 3-D FE SIMULATION OF CYCLIC LOADING TESTS OF RAILWAY BALLASTED TRACK USING SUBLOADING SURFACE ELASTOPLASTIC MODEL(Infrastructure,Technical Session)
Kazuhiro KoroYuta FukutsuKazuhisa Abe
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The 3-D simulation of cyclic vertical loading tests of a full-scale railway ballasted track is attempted using the finite element method (FEM). The ballast layer is modeled as the continuum body of which the elastoplastic behavior is described by the subloading surface model with rotational hardening. The variation tendency in the relation between the vertical displacement of the bottom of the sleeper and the vertical load can be simulated using the present FE model. The simulated permanent displacement is comparable to those of test results. The large plastic strain extends from the edge of the sleeper to the bottom of the ballast layer; the frictional sliding zone can be found in the ballast layer.
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© 2009 一般社団法人 日本機械学会
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