Applicability of published data for fatigue-limited design

Leary, M and Burvill, C 2009, 'Applicability of published data for fatigue-limited design', Quality and Reliability Engineering International, vol. 25, no. 8, pp. 921-932.

Document type: Journal Article
Collection: Journal Articles

Title Applicability of published data for fatigue-limited design
Author(s) Leary, M
Burvill, C
Year 2009
Journal name Quality and Reliability Engineering International
Volume number 25
Issue number 8
Start page 921
End page 932
Total pages 12
Publisher John Wiley & Sons Ltd.
Abstract The use of published fatigue data provides an expedient basis for fatigue-limited engineering design by alleviating the necessity of explicit testing. However, published fatigue data often exhibits incomplete documentation of the associated test conditions. Incomplete documentation introduces uncertainties in fatigue life prediction that may limit the applicability of the published fatigue data for design applications. Characterization of the applicability of published fatigue data is critical for robust fatigue-limited design. However, no quantitative methods have been identified which respond to this requirement. A novel method has been developed to provide a systematic characterization of the applicability of published fatigue data based on internationally recognized standards. This method provides a conceptual mechanism to: 'identify the applicability of published fatigue test data for specific design scenarios' thereby informing engineers of potential limitations of published data and allowing prioritization of multiple data sources; 'identify material domains of insufficient applicability' thereby providing a robust basis for identifying beneficial fatigue test programs; 'compromise between design complexity and the uncertainties inherent in fatigue life prediction; 'define a framework for the appropriate documentation of published fatigue data. A sample of published fatigue data sources associated with a specific fatigue-limited safety' critical design scenario was assessed by the method presented in this paper. For the majority of the sampled references, the associated documentation was insufficient to allow the fatigue test data to be confidently applied to the subsequent design activity.
Subject Mechanical Engineering not elsewhere classified
Keyword(s) fatigue design
life prediction
reliability analysis
knowledge management
expert systems
DOI - identifier 10.1002/qre.1010
Copyright notice © 2009 John Wiley & Sons, Ltd.
ISSN 0748-8017
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