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International Journal of Turbo & Jet-Engines

Ed. by Sherbaum, Valery / Erenburg, Vladimir


IMPACT FACTOR 2018: 0.863

CiteScore 2018: 0.66

SCImago Journal Rank (SJR) 2018: 0.211
Source Normalized Impact per Paper (SNIP) 2018: 0.625

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2191-0332
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Volume 29, Issue 2

Issues

A Practical Method for Determining the Corten-Dolan Exponent and Its Application to Fatigue Life Prediction

Shun-Peng Zhu
  • School of Mechatronics Engineering, University of Electronic Science and Technology of China, West Hi-Tech Zone, Chengdu, Sichuan, China
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/ Hong-Zhong Huang
  • Corresponding author
  • School of Mechatronics Engineering, University of Electronic Science and Technology of China, West Hi-Tech Zone, Chengdu, Sichuan, China
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/ Yu Liu
  • School of Mechatronics Engineering, University of Electronic Science and Technology of China, West Hi-Tech Zone, Chengdu, Sichuan, China
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  • De Gruyter OnlineGoogle Scholar
/ Li-Ping He
  • School of Mechatronics Engineering, University of Electronic Science and Technology of China, West Hi-Tech Zone, Chengdu, Sichuan, China
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  • De Gruyter OnlineGoogle Scholar
/ Qiang Liao
  • School of Mechatronics Engineering, University of Electronic Science and Technology of China, West Hi-Tech Zone, Chengdu, Sichuan, China
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  • De Gruyter OnlineGoogle Scholar
Published Online: 2012-06-28 | DOI: https://doi.org/10.1515/tjj-2012-0013

Abstract

Based on the derivation and calculation of the Corten-Dolan exponent d, a practical method of determining its value is proposed. This exponent depends not only upon the materials, but also upon the load spectrums. Therefore its value is obtained by a function which decreases with increasing stress amplitude. This exponent was investigated through analysis of fatigue damage evolution to determine its parameters. The proposed method has been effectively proved by experimental data from literature. Utilization of the modified Corten-Dolan's model significantly improves its life prediction capability when compared to the conventional model where that exponent was assumed to be constant.

Keywords.: fatigue; Corten-Dolan's model; nonlinear fatigue damage accumulation; life prediction

About the article

Received: 2012-03-26

Accepted: 2012-03-27

Published Online: 2012-06-28

Published in Print: 2012-06-28


Citation Information: Int. J. Turbo Jet-Engines, Volume 29, Issue 2, Pages 79–87, ISSN (Online) 2191-0332, ISSN (Print) 0334-0082, DOI: https://doi.org/10.1515/tjj-2012-0013.

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