Simulation of damage in railway crossings - a comparison of rail steel grades R350HT and rolled Mn13
Paper i proceeding, 2018

The application of a multidisciplinary methodology for the prediction of rail damage in railway crossings is demonstrated. Two rail steel grades are compared: R350HT and rolled Mn13. Based on a load sequence designed by Latin hypercube sampling considering the variation in traffic conditions, the results include the calculated plastic deformation and wear after a load collective corresponding to 0.8 MGT of traffic. The methodology has been introduced in earlier work but is here improved in terms of computational efficiency. Wheel-rail normal contact is solved using a Hertzian-based metamodel accounting for the inelastic material response. It is shown that the rolled Mn13 crossing experiences more ratchetting strain than the R350HT counterpart.

S&C

wear

plastic deformation

Switches & crossings

FEM

Författare

Rostyslav Skrypnyk

CHARMEC

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Magnus Ekh

Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

CHARMEC

Jens Nielsen

CHARMEC

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Björn Pålsson

CHARMEC

Chalmers, Mekanik och maritima vetenskaper, Dynamik

Proceedings of the 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems (CM2018)

2590-0609 (ISSN)

902-907

The 11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018
Delft, Netherlands,

Drivkrafter

Hållbar utveckling

Ämneskategorier

Tribologi

Teknisk mekanik

Farkostteknik

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Mer information

Senast uppdaterat

2019-01-18