Paper Title:
Investigation on the Residual Stress Redistribution under Cyclic Loading
  Abstract

The residual stress,which is unavoidable in the process of flash-butt-weld rails,plays important roles in the service life of the railway rails.Residual stress can and do change in service.In this paper,the distribution of initial residual stress was presented,and the redistribution was measured after 2×106 cycles as well.The result shows that residual stress would change after appling fatigue loading.After 2×106 cycles,the residual stress of some tested places increased while others decreased,the state of the longitudinal residual stress in the side region and the foot region has not changed,which still presented compressive,while the change of the longitudinal residual stress in the head region and the foot region does not present general tendency. In the transverse direction,residual stress in the head and side head regions decreases while the foot region shows opposite change.

  Info
Periodical
Chapter
Chapter 3: Materials Forming/Machining/Joining
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
588-593
DOI
10.4028/www.scientific.net/AMR.337.588
Citation
S. H. Yan, Z. Y. Zhu, C. P. Ma, L. Su, D. Li, H. Chen, L. C. Meng, "Investigation on the Residual Stress Redistribution under Cyclic Loading", Advanced Materials Research, Vol. 337, pp. 588-593, 2011
Online since
September 2011
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Price
$32.00
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