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Research Letters in Materials Science
Volume 2008, Article ID 693207, 3 pages
http://dx.doi.org/10.1155/2008/693207
Research Letter

Raman Spectroscopy for the Nondestructive Testing of Carbon Fiber

Department of Civil and Environmental Engineering, University of Missouri-Columbia, E2509 Thomas and Nell Lafferre Hall, Columbia, MO 65211, USA

Received 12 August 2008; Accepted 18 December 2008

Academic Editor: Jeffrey Glass

Copyright © 2008 Glenn Washer and Frank Blum Jr. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The goal of this research is to evaluate the potential of Raman spectroscopy as a method of condition assessment for carbon fiber composite materials used in high performance situations such as composite overwrapped pressure vessels (COPVs). There are currently limited nondestructive evaluation (NDE) technologies to evaluate these composite materials in situ. Variations in elastic strain in the composite material can manifest from degradation or damage, and as such could provide a tool for condition assessment. The characterization of active Raman bands and the strain sensitivity of these bands for commercially available carbon fibers are reported.