Crack propagation in rails under RCF loading conditions based on material forces
Conference contribution, 2011

In this paper, numerical simulations of crack growth in rails are presented. More specically, this paper focus on short surface (head-check like) cracks that are often observed at the rail gauge corner. A fatigue propagation law expressed in terms of a crack driving force, derived from the concept of material forces, is presented. This model has been used for parametric studies of crack propagation, investigating key parameters such as loading and crack geometry. The results obtained together with additional investigations suggest that anisotropic effects should be included in order to simulate head-check growth in rails more accurately.

Crack propagation

RCF

Material forces

Author

Jim Brouzoulis

Chalmers, Applied Mechanics, Material and Computational Mechanics

Magnus Ekh

Chalmers, Applied Mechanics, Material and Computational Mechanics

Proceedings of NSCM-24, the 24th Nordic Seminar on Computational Mechanics

1799-4896 (ISSN)

227-229

Subject Categories

Mechanical Engineering

Other Materials Engineering

Driving Forces

Sustainable development

Areas of Advance

Transport

ISBN

978-952-60-4347-0

More information

Created

10/8/2017