Application of optical fiber sensors embedded into braided composites

Rui Huang; Shengfang Yuan; Baoqi Tao

doi:10.1117/12.402565

9 October 2000 Application of optical fiber sensors embedded into braided composites

Rui Huang, Shengfang Yuan, Baoqi Tao

Proceedings Volume 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications; (2000) https://doi.org/10.1117/12.402565
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

Braided composites have advantages over conventional ply composites, which have limitation of brittle interlaminar. They are the hotspot of advanced material research in recent years. Although 3D braided composites have good performances, people do not know enough about them, whether in depth or in extent. In this paper a method in which optic fiber sensors embedded into 3D composites are used to study 3D braided composites is introduced. The braiding process of optic fiber sensors, optic performances of optic fibers are studied. Several kinds of optic fibers are used. Girder form structures with embedded optic fibers are braided through four-step method and processed through Mold Pressing. Some special measures are taken to prevent damage of the optic fibers. Measurement of some performance parameters of optic fibers shows little changes of those parameters before, after optic fibers being braided into the structures, and after the molding process. A polarimetric type of optic fiber sensors is designed for measuring strain in braided testpieces.

Citation Download Citation

Rui Huang, Shengfang Yuan, and Baoqi Tao "Application of optical fiber sensors embedded into braided composites", Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); https://doi.org/10.1117/12.402565

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