Paper Title:
Residual Stress Evaluation of Railway Wheels by X-Ray Diffraction and Finite Element Method
  Abstract

X-ray stress measurement is useful for determining, in a non-destructive manner, the surface stresses of engineered parts. However, the railway wheels cannot measure because this it is very large. So it should be measured using a scaled-down model. The problem is, however, how the stress release should be considered. In this analysis, the finite element method (FEM) was applied to estimate the initial stress state using stresses released after cutting a sample obtained by the X-ray method. Railway wheels were studied in this experiment. In the early 1990s, several railroads in the northeast of the U.S.A. experienced extensive cracking in the wheels of the commuter trains. Residual stresses in the hoop direction play an important role in mechanism fatigue damage. This paper will discuss about residual stress in the hoop direction in manufactured wheels. The results of FEM analysis and the X-ray diffraction method confirms that these methods can be used to evaluate the residual stress of the hoop direction. There is very good quantitative agreement between the simulated and measured stress distributions. It can be suggested that guessing guess stress release and the redistribution by the FEM analysis is possible. The residual hoop stress of the unused wheel presumed by this research has the residual stress of high compression in the wheel at the center of the rim up to 40mm depth. It is very safe because the residual stress state is compressive even when a crack occurs, and obstructs the crack’s progress. If a crack occurs by any chance, the stress state can obstruct the crack’s progress.

  Info
Periodical
Advanced Materials Research (Volumes 89-91)
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
545-550
DOI
10.4028/www.scientific.net/AMR.89-91.545
Citation
S. Takahashi, T. Kato, H. Suzuki, T. Sasaki, "Residual Stress Evaluation of Railway Wheels by X-Ray Diffraction and Finite Element Method ", Advanced Materials Research, Vols. 89-91, pp. 545-550, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J.C. Outeiro, Domenico Umbrello, Rachid M'Saoubi
Abstract:The reliability of a mechanical component depends to a large extent on the physical state of its surface layers. This state includes the...
179
Authors: Shinobu Okido, Hiroshi Suzuki, K. Saito
Abstract:Residual stress generated in Type-316 austenitic stainless steel butt-weld jointed by Inconel-182 was measured using a neutron diffraction...
697
Authors: Hua Song, Li Hua Fu, Pei Long Wang, De Xin Ding, Hui Li
Abstract:It has established the FEM model of nine horizontal roller straightening with original curvature for 60㎏/m heavy rail by using explicit...
44
Authors: Hong Shuang Zhang
Abstract:The hole cold expansion is a well-known technique used to improve the fatigue life in mechanical structures. An approach named simulation...
373
Authors: Gui Yu Lin, Yong Quan Zeng, Bin Xiao
Abstract:In this paper, three-dimensional solid contact finite element model of pin connector was build,and used this model to make careful checks of...
435