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Qualification Using a Nested Experimental Design / D. Ruffner, P. Jouin

Conference Author
Composite Materials: Testing, Design, and Acceptance Criteria (2001 : Phoenix, Arizona)
Physical Description
1 online resource (14 pages) : illustrations, figures, tables
Additional Creators
Ruffner, D., Jouin, P., American Society for Testing and Materials, and ASTM International
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Summary
The general aviation approach was taken in these material qualifications, where it is assumed that a large portion of composite material property batch-to-batch variability can be reproduced in the laboratory through independent layup and cure of panels, termed a process lot. A nested experimental design was used to quantify the actual sources of variability for hot/wet tension and compression strengths, and dry and wet glass transition temperatures. Two large crossplied panels, each representing a process lot, were independently made from each of three qualification batches. Two subpanels, each representing a machine lot, were cut from each process lot panel, then independently machined into coupons, moisture conditioned, and tested. With these three nested experimental levels the batch-to-batch variability can be partitioned into true batch variability, laminate fabrication, coupon test, and within sample variability. Results indicate that true batch variability was a relatively minor contributor to material property variability as a whole.
Dates of Publication and/or Sequential Designation
Volume 2002, Issue 1416 (January 2002)
Subject(s)
Other Subject(s)
ISBN
9780803154643 (e-ISBN)
9780803128934
0803128932
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 10.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2002. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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