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Application of Raman Spectroscopy for Nondestructive Evaluation of Composite MaterialsThis paper will present an overview of efforts to investigate the application of Raman spectroscopy for the characterization of Kevlar materials. Raman spectroscopy is a laser technique that is sensitive to molecular interactions in materials such as Kevlar, graphite and carbon used in composite materials. The overall goal of this research reported here is to evaluate Raman spectroscopy as a potential nondestructive evaluation (NDE) tool for the detection of stress rupture in Kevlar composite over-wrapped pressure vessels (COPVs). Characterization of the Raman spectra of Kevlar yarn and strands will be presented and compared with analytical models provided in the literature. Results of testing to investigate the effects of creep and high-temperature aging on the Raman spectra will be presented.
Document ID
20070014085
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Washer, Glenn A. (Missouri Univ. Columbia, MO, United States)
Brooks, Thomas M. B. (Missouri Univ. Columbia, MO, United States)
Saulsberry, Regor (NASA White Sands Test Facility NM, United States)
Date Acquired
August 23, 2013
Publication Date
June 29, 2007
Subject Category
Composite Materials
Distribution Limits
Public
Copyright
Public Use Permitted.

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