On the Relationship between Structural Quality Index and Fatigue Life Distributions in Aluminum Aerospace Castings†Report as inadecuate




On the Relationship between Structural Quality Index and Fatigue Life Distributions in Aluminum Aerospace Castings† - Download this document for free, or read online. Document in PDF available to download.

School of Engineering, University of North Florida, 1 UNF Dr. Jacksonville, FL 32224, USA



An earlier version of this paper also appears in Shape Casting: 6th International Symposium, pp. 85–92, part of the 2016 TMS Annual Meeting.





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Academic Editor: Nong Gao

Abstract Tensile and fatigue testing results of D357 and B201 aluminum alloy aerospace castings reported in the literature have been reanalyzed. Yield strength–elongation bivariate data have been used as a measure of the structural quality of castings, and converted into quality index. These results as well as fatigue data have been analyzed by using Weibull statistics. A distinct relationship has been observed between expected fatigue life and quality index. Moreover, probability of survival in fatigue life was found to be directly linked to the proportions of the quality index distributions in two different regions, providing further evidence about the strong relationship between elongation, i.e., structural quality and fatigue performance. View Full-Text

Keywords: structural quality; metal fatigue; weakest link; elongation structural quality; metal fatigue; weakest link; elongation





Author: Hüseyin Özdeş and Murat Tiryakioğlu *

Source: http://mdpi.com/



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