Paper Title:
Random Fatigue Cracking Thresholds of China Railway Grade B Cast Steel Wheel
  Abstract

Fracture surface observations and statistical deriving are applied experimentally for the present investigation on random fatigue cracking thresholds of China grade B cast steel wheel. Results reveal that: the crack grows with relative regular initial tip companied fabric like stripes along the growth direction but few of fatigue striations and then, cleavage flowers appearing on the district of transient fracture with few of dimples. This indicates that sharp notched structures may be subjected to a little plastic dissipation process. In the same time, non-linear statistical modeling is constructed for describing the random crack growth and then, random fatigue cracking thresholds are measured at specified growth rate. The measurements hold a same growth rate which can not be obtained directly from test results.

  Info
Periodical
Key Engineering Materials (Volumes 480-481)
Edited by
Yanwen Wu
Pages
375-380
DOI
10.4028/www.scientific.net/KEM.480-481.375
Citation
B. Yang, Y. X. Zhao, G. X. Song, "Random Fatigue Cracking Thresholds of China Railway Grade B Cast Steel Wheel", Key Engineering Materials, Vols. 480-481, pp. 375-380, 2011
Online since
June 2011
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Price
$32.00
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