Nondestructive evaluation of composite materials by pulsed time domain methods in imbedded optical fibersThe application of fiber-optical time domain reflectometry (OTDR) to nondestructive quantitative measurements of distributed internal strain in graphite-epoxy composites, using optical fiber waveguides imbedded between plies, is discussed. The basic OTDR measurement system is described, together with the methods used to imbed optical fibers within composites. Measurement results, system limitations, and the effect of the imbedded fiber on the integrity of the host composite material are considered.
Document ID
19870023479
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Claus, R. O. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Bennett, K. D. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Jackson, B. S. (Virginia Polytechnic Institute and State University Blacksburg, United States)