Three-Dimensional Residual Stress Effects on the Fatigue Crack Initiation in Rails

Author:

Yu Chau-Cho1,Keer L. M.1,Steele R. K.2

Affiliation:

1. Department of Civil Engineering, Northwestern University, Evanston, IL 60208

2. Association of American Railroads

Abstract

A rail is simulated as an elastic-plastic kinematic hardening steel having a T-shaped cross section and finite length in the rolling direction. The direct analysis method and the finite element method are combined to solve for the steady-state residual stress/strains and cyclic plastic strain amplitudes. In the present analysis, some special loading cases are investigated. Results show that tensile residual stresses occur deep in a rail head over a large area of the substrate. These phenomena, which are observed in rail steel after service, cannot be deduced from a half plane or half space analysis.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Reference21 articles.

1. Bhargava V. , HahnG. T., and RubinC. A., 1985, “An Elastic-Plastic Finite Element Model of Rolling Contact, Part 2: Analysis of Single Contacts,” ASME Journal of Applied Mechanics, Vol. 52, pp. 75–82.

2. Bijak-Zochowski, M., 1992, “Investigation of Residual Stress by Penetration Method,” Residual Stress in Rail, O. Orringer, J. Orkisz, and Z. Swiderski, eds., Kluwer Academic Publishers, Vol. 1, pp. 185–203.

3. Bower, A. F., Johnson, K. L., and Kalousek, J., 1987, “A Ratchetting Limit for Plastic Deformation of a Quarter-Space under Rolling Contact Loads,” Proc. Symp. on Contact Mechanics and Wear of Rail/Wheel Systems II, Kingston, R. I., July 1986, University of Waterloo Press, pp. 117–132.

4. Cundiff, C. H., Rice, R. C., 1992, “Comparative Evaluation Alternative Methods for Measuring Rail Residual Stress,” Residual Stress in Rail, O. Orringer, J. Orkisz, and Z. Swiderski, eds., Kluwer Academic Publishers, Vol. 1, pp. 121–142.

5. Czarnek, R., Lee, J., and Lin, S.-Y., 1992, “Moire Interferometry and its Potential for Applicadion to Redisual Stress Measurements in Rail,” Residual Stress in Rail, O. Orringer, J. Orkisz, and Z. Swiderski, eds., Kluwer Academic Publishers, Vol. 1, pp. 153–167.

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