Random Fatigue Cracking Thresholds of China Railway Grade B Cast Steel Wheel-Reference-Cited by-同舟云学术

Random Fatigue Cracking Thresholds of China Railway Grade B Cast Steel Wheel

Published:2011-06 Issue: Volume:480-481 Page:375-380
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Yang Bing¹,Zhao Yong Xiang¹,Song Guo Xiang²

Affiliation:

1. Southwest Jiaotong University

2. Datong ABC Castings Company Ltd.

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.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.480-481.375.pdf

Reference11 articles.

1. AAR M-107/M-208: Wheel, carbon steel (Association of American Railroads, Washington, DC, USA, 2007).

2. AAR S-660: Analytic evaluation of locomotive and freight car wheel designs (Association of American Railroads, Washington, DC, USA, 2007).

3. EN 13979-1: Railway applications —wheelsets and bogies —monobloc wheels —technical approval procedure —part 1: forged and rolled wheels (European Committee for Standardization, rue de Stassart, 36 B-1050 Brussels, 2003).

4. EN 13262: Railway applications —wheelsets and bogies —wheels — product requirement (European Committee for Standardization, rue de Stassart, 36 B-1050 Brussels, 2004).

5. K.J. Miller, H.J. Mohamed, M.W. Brown and E.R. de los Rios, in: Small Fatigue cracks, R. O. Ritchie and J. Lankford, Eds., A Publication of The Metallurgical Society, Inc., Warrendale, Pennsylvania, USA (1986), p.639.