Paper Title:
Simulation on the Short Fatigue Crack Initiation of LZ50 Axle Steel for Railway Vehicles
  Abstract

The short fatigue crack initiation of LZ50 axle steel for railway vehicles was investigated by numerical simulation in this paper. The microstructure of LZ50 steel was constructed with the application of 2D Voronoi tessellation. The stress and strain distributions in the microstructure were obtained by FEM under the boundary condition shifted from loading level applied in fatigue specimen of this steel. Finally, the probability of short fatigue crack initiation was given with different loading cycles to illustrate the process of crack initiation of LZ50 steel under the given loading cycles based on the S-N curve of the material. The further work on the research of crack growth and collective evolution of short fatigue cracks can be conducted with the simulated results of crack initiation in the microstructure of LZ50 steel.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
989-992
DOI
10.4028/www.scientific.net/KEM.353-358.989
Citation
Y. H. Xu, Y. X. Zhao, "Simulation on the Short Fatigue Crack Initiation of LZ50 Axle Steel for Railway Vehicles", Key Engineering Materials, Vols. 353-358, pp. 989-992, 2007
Online since
September 2007
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: Tomáš Denk, Vladislav Oliva, Aleš Materna
Abstract:A two-parameter constraint-based fracture mechanics approach is used to explain the effect of the constraint on the apparently anomalous...
307
Authors: Choong Myeong Kim, Jung Kyu Kim, Chul Su Kim
Abstract:The optimum welding condition for the input power was experimentally determined using the ERW simulator. The optimum condition derived from...
3
Authors: Li Hong Gao, Ge Ning Xu, Ping Yang
Structural Strength and Robustness
Abstract:The random formula on fatigue crack growth is deduced by the fatigue crack data and the improved Taguchi method, and the sample estimates of...
1277
Authors: M.R.M. Aliha, Mahdi Rezaei
Abstract:Crack growth path was investigated experimentally, numerically and theoretically using two test specimens subjected to pure mode II loading....
159