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Finite element modeling of a rail resting on a Winkler-Coulomb foundation and subjected to a moving concentrated load

Finite element modeling of a rail resting on a Winkler-Coulomb foundation and subjected to a moving concentrated load

Authors :
A. Pinto da Costa
Fernando M. F. Simões
R. Toscano Corrêa
Source :
International Journal of Mechanical Sciences. 140:432-445
Publication Year :
2018
Publisher :
Elsevier BV, 2018.

Abstract

A model for the dynamic behavior of an Euler-Bernoulli beam on a frictional-elastic foundation under the action of a uniformly moving concentrated load is presented. The frictional part of the foundation’s behavior is of the Coulomb type distributed over the beam’s length and may represent the dissipative behavior due to the frictional sliding between the aggregates composing railway ballasts. Critical velocities, energy balances and dynamic amplification factors are computed based on a formulation and a numeric algorithm that take into account the nonsmooth character of friction.

Details

ISSN :
00207403
Volume :
140
Database :
OpenAIRE
Journal :
International Journal of Mechanical Sciences
Accession number :
edsair.doi...........f9a733fe3fd53c300578799451982aee
Full Text :
https://doi.org/10.1016/j.ijmecsci.2018.03.022