Next Article in Journal
Reaction Behavior of Phosphorus in Coal-Based Reduction of an Oolitic Hematite Ore and Pre-Dephosphorization of Reduced Iron
Next Article in Special Issue
Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy
Previous Article in Journal / Special Issue
Detecting Milling Deformation in 7075 Aluminum Alloy Aeronautical Monolithic Components Using the Quasi-Symmetric Machining Method
Article Menu

Export Article

Open AccessFeature PaperArticle
Metals 2016, 6(4), 81;

On the Relationship between Structural Quality Index and Fatigue Life Distributions in Aluminum Aerospace Castings

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.
Author to whom correspondence should be addressed.
Academic Editor: Nong Gao
Received: 4 March 2016 / Revised: 29 March 2016 / Accepted: 1 April 2016 / Published: 7 April 2016
(This article belongs to the Special Issue Aluminum Alloys)
View Full-Text   |   Download PDF [2168 KB, uploaded 7 April 2016]   |  


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

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Özdeş, H.; Tiryakioğlu, M. On the Relationship between Structural Quality Index and Fatigue Life Distributions in Aluminum Aerospace Castings. Metals 2016, 6, 81.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top