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Proceedings Paper

Sensitivity analysis of all fibers in polarimetric fiber optic sensor for structural health monitoring of composites
Author(s): Kar Wai Lee; Adele C. Peiyi; Fai Chan; Jianheng Ho; John Shelly; Anand Krishna Asundi; Gopalkrishna M. Hegde
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Paper Abstract

Since fiber reinforced polymer composites are becoming increasingly popular, nondestructive damage detection in these materials has become an important issue. Real time structural health monitoring using Fiber Optic Polarimetric Sensors (FOPS) in an interesting field of research in recent years. This paper presents the performance of FOPS using three different optical sensing fibers: low birefringence (low-bi), high birefringence (high-bi) and an ordinary single mode polarization maintaining fiber. The static and dynamic response of these fibers are experimentally evaluated under different conditions. The experiments were conducted on composite structures by embedding the optical fibers into specimen. Composite materials are extensively used in aerospace applications. The sensitivity of all fibers under different conditions is discussed for static and dynamic loading.

Paper Details

Date Published: 1 August 2003
PDF: 6 pages
Proc. SPIE 5046, Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Composites II, (1 August 2003); doi: 10.1117/12.484294
Show Author Affiliations
Kar Wai Lee, Ngee Ann Polytechnic (Singapore)
Adele C. Peiyi, Ngee Ann Polytechnic (Singapore)
Fai Chan, Ngee Ann Polytechnic (Singapore)
Jianheng Ho, Ngee Ann Polytechnic (Singapore)
John Shelly, Nanyang Technological Univ. (Singapore)
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)
Gopalkrishna M. Hegde, Ngee Ann Polytechnic (Singapore)


Published in SPIE Proceedings Vol. 5046:
Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Composites II
Andrew L. Gyekenyesi; Peter J. Shull, Editor(s)

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