Application of the embedded optical fiber Bragg grating sensors in curing monitoring of Gr/epoxy laminated composites

Liren Tsai; Tsung-Chieh Cheng; Chih-Lang Lin; Chia-Chin Chiang

doi:10.1117/12.817520

9 April 2009 Application of the embedded optical fiber Bragg grating sensors in curing monitoring of Gr/epoxy laminated composites

Liren Tsai, Tsung-Chieh Cheng, Chih-Lang Lin, Chia-Chin Chiang

Author Affiliations +

Proceedings Volume 7293, Smart Sensor Phenomena, Technology, Networks, and Systems 2009; 729307 (2009) https://doi.org/10.1117/12.817520
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

The curing monitoring of polymeric composite materials has attracted wide interests recently. Monitoring the curing process is necessary to improve the performance of Gr/Epoxy composites, especially for the characterization of residual strains after manufacture. This paper aimed on exploring the use of embedded fiber Bragg grating (FBG) to monitor the characterizations of the curing process in a Graphite/Epoxy composite. The curing development and residual stress measurement were assessed through changes in the shape of the optical spectra, intensity attenuation and shifts in wavelengths in the optical fiber sensors. The curing caused residual stress was presented and analyzed systematically in this paper.

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Liren Tsai, Tsung-Chieh Cheng, Chih-Lang Lin, and Chia-Chin Chiang "Application of the embedded optical fiber Bragg grating sensors in curing monitoring of Gr/epoxy laminated composites", Proc. SPIE 7293, Smart Sensor Phenomena, Technology, Networks, and Systems 2009, 729307 (9 April 2009); https://doi.org/10.1117/12.817520

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