Microstructured optical fiber Bragg grating as an internal three-dimensional strain sensor for composite laminates

被引：26

作者：

Sonnenfeld, Camille ^{[1
,2
]}

Luyckx, Geert ^{[3
]}

Sulejmani, Sanne ^{[1
]}

Geernaert, Thomas ^{[1
]}

Eve, Sophie ^{[2
]}

Gomina, Moussa ^{[2
]}

Chah, Karima ^{[4
]}

Mergo, Pawel ^{[5
]}

Urbanczyk, Waclaw ^{[6
]}

Thienpont, Hugo ^{[1
]}

Degrieck, Joris ^{[3
]}

Berghmans, Francis ^{[1
]}

机构：

[1] Vrije Univ Brussel, Brussels Photon Team B PHOT, B-1050 Brussels, Belgium

[2] Univ Caen Basse Normandie, CRISMAT UMR UCBN ENSICAEN CNRS 6508, F-14050 Caen 04, France

[3] Univ Ghent, Dept Mat Sci & Engn, B-9052 Ghent, Belgium

[4] Univ Mons, Electromagnetism & Telecom Dept, B-7000 Mons, Belgium

[5] Marie Curie Sklodowska Univ, Dept Opt Fiber Technol, PL-20031 Lublin, Poland

[6] Wroclaw Univ Technol, Inst Phys, PL-50370 Wroclaw, Poland

来源：

SMART MATERIALS AND STRUCTURES | 2015年 / 24卷 / 05期

关键词：

fiber optic sensor; microstructured optical fiber; fiber Bragg grating; multi-axial strain sensing; TEMPERATURE; STRESS; HOLE;

D O I：

10.1088/0964-1726/24/5/055003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this article, we study the possibility to use a pair of specifically designed microstructured optical fiber Bragg gratings (MOFBGs) as a multi-component strain sensor when embedded within composite materials. The dependence on the orientation of the transverse sensitivity of the MOFBGs is exploited to build a sensing device able to measure the strain field along the three principal mechanical directions of a laminate composite. We developed an analytical and numerical model of such a sensor and benchmarked it with experiments performed on laminated composite coupons equipped with this sensor. We report on a theoretical strain resolution of about 5 mu epsilon in the transverse directions of the composite material, which is a six-fold improvement over results reported in literature.

引用

页数：13

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