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Kevlar 49/Epoxy COPV Aging EvaluationNASA initiated an effort to determine if the aging of Kevlar 49/Epoxy composite overwrapped pressure vessels (COPV) affected their performance. This study briefly reviews the history and certification of composite pressure vessels employed on NASA Orbiters. Tests to evaluate overwrap tensile strength changes compared 30 year old samples from Orbiter vessels to new Kevlar/Epoxy pressure vessel materials. Other tests include transverse compression and thermal analyses (glass transition and moduli). Results from these tests do not indicate a noticeable effect due to aging of the overwrap materials.
Document ID
20080047675
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Sutter, James K. (NASA Glenn Research Center Cleveland, OH, United States)
Salem, Jonathan L. (NASA Glenn Research Center Cleveland, OH, United States)
Thesken, John C. (NASA Glenn Research Center Cleveland, OH, United States)
Russell, Richard W. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Littell, Justin (Akron Univ. Akron, OH, United States)
Ruggeri, Charles (Akron Univ. Akron, OH, United States)
Leifeste, Mark R. (Jacobs Sverdrup Technology, Inc. Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
April 21, 2008
Subject Category
Composite Materials
Report/Patent Number
E-16782
Report Number: E-16782
Meeting Information
Meeting: Aging Aircraft 2008
Location: Phoenix, AZ
Country: United States
Start Date: April 21, 2008
End Date: April 24, 2008
Sponsors: Federal Aviation Administration, NASA Headquarters
Funding Number(s)
WBS: WBS 510505.03.03.02.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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