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A Practical Method for Determining the Corten-Dolan Exponent and Its Application to Fatigue Life Prediction
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Shun-Peng Zhu
,
Yu Liu
Published/Copyright:
June 28, 2012
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.
Received: 2012-03-26
Accepted: 2012-03-27
Published Online: 2012-06-28
Published in Print: 2012-06-28
©2012 by Walter de Gruyter Berlin Boston
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Keywords for this article
fatigue;
Corten-Dolan's model;
nonlinear fatigue damage accumulation;
life prediction
Articles in the same Issue
- Masthead
- Effect of Tab Geometry on the Development of a Jet Issuing from a Rectangular Nozzle
- Reliability Analysis of Aircraft Servo-Actuation Systems Using Evidential Networks
- Improvements in Off Design Aeroengine Performance Prediction Using Analytic Compressor Map Interpolation
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- Effect of Soot Particles on Supersonic Rocket Plume Properties
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- Experimental Research on Induction Systems of an Air-breathing Valveless Pulse Detonation Engine
