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Statistical Analysis of Strength Data for an Aerospace Aluminum AlloyAerospace vehicles are produced in limited quantities that do not always allow development of MIL-HDBK-5 A-basis design allowables. One method of examining production and composition variations is to perform 100% lot acceptance testing for aerospace Aluminum (Al) alloys. This paper discusses statistical trends seen in strength data for one Al alloy. A four-step approach reduced the data to residuals, visualized residuals as a function of time, grouped data with quantified scatter, and conducted analysis of variance (ANOVA).
Document ID
20000103876
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Neergaard, Lynn (IIT Research Inst. Huntsville, AL United States)
Malone, Tina (NASA Marshall Space Flight Center Huntsville, AL United States)
Gentz, Steven J.
Date Acquired
September 7, 2013
Publication Date
January 1, 2000
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: Aerospace Materials, Processes, and Environmental Technology
Location: Huntsville, AL
Country: United States
Start Date: September 18, 2000
End Date: September 20, 2000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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