Affiliation:
1. National Taiwan University
Abstract
This work aims at assessing the use of embedded fiber Bragg grating to monitor the
internal damage evolution in polymeric composite during fatigue loading . The results suggested
that the embedded FBGs have good potentials to detect the appearance of damage and to
differentiate the damage types. The evolution in light spectrum during fatigue may be divided into
four stages when compared against X-ray, C-scan and optical microscope (OM) results. These
stages are associated with (1) matrix cracking in 90o lamina; (2) fiber splitting in the ±45o laminae;
(3) fiber splitting in the 0o lamina ; and (4) delamination.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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