|
|
Digital
Library of the European Council for Modelling
and Simulation |
|
Title: |
FE Simulation Of A
Cord-Rubber Composite Tube Subjected To Bending Due To Operational Loads On A
Railroad Reverse Curve With Extremely Low Curve Radius At Sub-Zero
Temperature |
|
Authors: |
Gyula
Szabo, Karoly Varadi |
|
Published in:
|
(2019). ECMS 2019
Proceedings Edited by: Mauro Iacono, Francesco Palmieri, Marco Gribaudo,
Massimo Ficco, European Council for Modeling and Simulation. DOI: http://doi.org/10.7148/2019 ISSN:
2522-2422 (ONLINE) ISSN:
2522-2414 (PRINT) ISSN:
2522-2430 (CD-ROM) 33rd International ECMS Conference on
Modelling and Simulation,
Caserta, Italy, June 11th – June 14th, 2019 |
|
Citation
format: |
Gyula Szabo, Karoly Varadi (2019). FE Simulation Of A Cord-Rubber Composite Tube Subjected To Bending Due To Operational Loads On A Railroad Reverse Curve With Extremely Low Curve Radius At Sub-Zero Temperature, ECMS 2019 Proceedings Edited by: Mauro Iacono, Francesco Palmieri, Marco Gribaudo, Massimo Ficco European Council for Modeling and Simulation. doi: 10.7148/2019-0377 |
|
DOI: |
https://doi.org/10.7148/2019-0377 |
|
Abstract: |
The aim of
this study is to examine railway brake tubes subjected to bending due to
operation on a railroad reverse curve with extremely low curve radius in case
of critical load cases at -40°C. Firstly kinematic simulation has been
performed in order to determine the input prescribed displacements of the FE
simulation. Then, FE model is presented for the critical positions, without
and with internal pressure. Stress and strain states have been analysed.
Finally, a standard deflection test has been carried out along with the FE
model of the deflection test based on the material model of the FE model of
bending for experimental validation. Tsai-Hill failure indices are lower than
1 and equivalent stresses in rubber liners are lower than tensile strength of
rubber for all load cases, so material failure is not imminent regarding such
extreme operating conditions. With internal pressure applied, maximum failure
indices tend to be lower. The deflection test results are in good agreement
with the corresponding FE model deflection results, validating FE model of
operation (reverse curve, -40 C). |
|
Full
text: |
|
