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Proceedings Paper

Evaluation of micro-damage accumulation in holed plain-woven CFRP composite under fatigue loading
Author(s): Jia Ying; Masaaki Nishikawa; Masaki Hojo
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Paper Abstract

Fluorescence method was used to detect the micro-damage caused by fatigue in a plain-woven carbon fiber reinforced polymer (CFRP). Fluorescence measurement is a method which estimates micro-damage by measuring fluorescent intensity change inside materials. The principle is, larger micro-damage means larger plastic strain, thus more space in that damaged spot which allows more fluorescent dyes coming in the material. By detecting fluorescent intensity in CFRP layer by layer using confocal laser microscopy, micro-damage can be estimated. Results show that there’s a good relationship between micro-damage and fluorescent intensity gradient.

Paper Details

Date Published: 9 March 2014
PDF: 6 pages
Proc. SPIE 9063, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2014, 90631X (9 March 2014); doi: 10.1117/12.2044870
Show Author Affiliations
Jia Ying, Kyoto Univ. (Japan)
Masaaki Nishikawa, Kyoto Univ. (Japan)
Masaki Hojo, Kyoto Univ. (Japan)


Published in SPIE Proceedings Vol. 9063:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2014
H. Felix Wu; Tzu-Yang Yu; Andrew L. Gyekenyesi; Peter J. Shull, Editor(s)

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