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Considerations for acoustic emission monitoring of spherical Kevlar/epoxy composite pressure vesselsWe are continuing to research the applications of acoustic emission testing for predicting burst pressure of filament-wound Kevlar 49/epoxy pressure vessels. This study has focused on three specific areas. The first area involves development of an experimental technique and the proper instrumentation to measure the energy given off by the acoustic emission transducer per acoustic emission burst. The second area concerns the design of a test fixture in which to mount the composite vessel so that the acoustic emission transducers are held against the outer surface of the composite. Included in this study area is the calibration of the entire test setup including couplant, transducer, electronics, and the instrument measuring the energy per burst. In the third and final area of this study, we consider the number, location, and sensitivity of the acoustic emission transducers used for proof testing composite pressure vessels.
Document ID
19780049531
Document Type
Conference Proceedings
Authors
Hamstad, M. A. (Lawrence Livermore National Lab. Livermore, CA, United States)
Patterson, R. G. (California, University Lawrence Livermore Laboratory, Livermore, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
QUALITY ASSURANCE AND RELIABILITY
Meeting Information
Energy Technology Conference(Houston, TX)
Funding Number(s)
CONTRACT_GRANT: NASA ORDER C-13980-C
CONTRACT_GRANT: W-7405-ENG-48
Distribution Limits
Public
Copyright
Other