Инд. авторы:	Dyshlyuk A.V., Makarova N.V., Vitrik O.B., Kulchin Y.N., Babin S.A.
Заглавие:	Strain monitoring of reinforced concrete with OTDR-based FBG interrogation technique
Библ. ссылка:	Dyshlyuk A.V., Makarova N.V., Vitrik O.B., Kulchin Y.N., Babin S.A. Strain monitoring of reinforced concrete with OTDR-based FBG interrogation technique // Smart structures and systems . - 2017. - Vol.20. - Iss. 3. - P.343-350. - ISSN 1738-1584. - EISSN 1738-1991.
Внешние системы:	DOI: 10.12989/sss.2017.20.3.343; SCOPUS: 2-s2.0-85033467020; WoS: 000417863100007;
Реферат:	eng: An experimental study is presented of the application of fiber Bragg grating (FBG) interrogation method based on optical time-domain reflectometery (OTDR) to monitoring strain in bent reinforced concrete beams. The results obtained with the OTDR-based method are shown to agree well with the direct spectral measurements. Strain sensitivity, resolution and measurement range amounted to 0.0028 dB/ustrain, 30 strain; 4000 strain, correspondingly. Significant differences are observed in surface and inner deformations of the test beams which can be attributed to different mechanical properties of concrete and steel reinforcement. The prospects of using OTDR-based FBG interrogation technique in real-life applications are discussed.
Ключевые слова:	FIBER-BRAGG-GRATINGS; structural health monitoring; reinforced concrete; OPTIC SENSORS; FBG; OTDR; strain; TIME-DOMAIN REFLECTOMETRY;
Издано:	2017
Физ. характеристика:	с.343-350