Mutual Interaction of Two Rail Surface Cracks under Thermo-Mechanical Contact Loading

Abstract:

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A finite element analysis is conducted to study the mutual interaction of two oblique surface cracks in rail under the wheel-rail full slip contact loading and frictional heating. In the present thermo-mechanical coupling finite element model, the heat-convection between the rail and ambient, heat transfer between the crack surfaces, and temperature-dependent material properties are taken into consideration. The variation of stress intensity factors with the distance between two cracks is investigated. The results reveal that the stress intensity factor K1 increases with an increase of the distance between the cracks. The effect of the distance between the cracks on the stress intensity factor range K2 is not significant.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

543-546

DOI:

10.4028/www.scientific.net/AMR.97-101.543

Citation:

J. Guo et al., "Mutual Interaction of Two Rail Surface Cracks under Thermo-Mechanical Contact Loading", Advanced Materials Research, Vols. 97-101, pp. 543-546, 2010

Online since:

March 2010

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Price:

$35.00

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