Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator

A. Motil; R. Davidi; A. Bergman; Y. Botsev; M. Hahami; M. Tur

doi:10.1117/12.2236790

Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator

A. Motil, R. Davidi, A. Bergman, Y. Botsev, M. Hahami, M. Tur

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The ability of Brillouin-based fiber-optic sensing to detect damage in a moving cantilever beam is demonstrated. A fully computerized, distributed and high spatial resolution (10cm) Fast-BOTDA interrogator (50 full-beam Brillouin-gain-spectra per second) successfully directly detected an abnormally stiffened (i.e., 'damaged') 20cm long segment in a 6m Aluminum beam, while the beam was in motion. Damage detection was based on monitoring deviations of the measured strain distribution along the beam from that expected in the undamaged case.

Original language	English
Title of host publication	Sixth European Workshop on Optical Fibre Sensors
Editors	Elfed Lewis
Publisher	SPIE
ISBN (Electronic)	9781510602199
DOIs	https://doi.org/10.1117/12.2236790
State	Published - 2016
Externally published	Yes
Event	6th European Workshop on Optical Fibre Sensors - Limerick, Ireland Duration: 31 May 2016 → 3 Jun 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9916
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	6th European Workshop on Optical Fibre Sensors
Country/Territory	Ireland
City	Limerick
Period	31/05/16 → 3/06/16

Bibliographical note

Publisher Copyright:
© 2016 SPIE.

Keywords

Brillouin scattering
Damage detection
Fiber optics sensors
Nonlinear optics
Structural health monitoring

Access to Document

10.1117/12.2236790

Cite this

Motil, A., Davidi, R., Bergman, A., Botsev, Y., Hahami, M., & Tur, M. (2016). Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator. In E. Lewis (Ed.), Sixth European Workshop on Optical Fibre Sensors Article 99162X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9916). SPIE. https://doi.org/10.1117/12.2236790

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title = "Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator",

abstract = "The ability of Brillouin-based fiber-optic sensing to detect damage in a moving cantilever beam is demonstrated. A fully computerized, distributed and high spatial resolution (10cm) Fast-BOTDA interrogator (50 full-beam Brillouin-gain-spectra per second) successfully directly detected an abnormally stiffened (i.e., 'damaged') 20cm long segment in a 6m Aluminum beam, while the beam was in motion. Damage detection was based on monitoring deviations of the measured strain distribution along the beam from that expected in the undamaged case.",

keywords = "Brillouin scattering, Damage detection, Fiber optics sensors, Nonlinear optics, Structural health monitoring",

author = "A. Motil and R. Davidi and A. Bergman and Y. Botsev and M. Hahami and M. Tur",

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year = "2016",

doi = "10.1117/12.2236790",

language = "אנגלית",

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Motil, A, Davidi, R, Bergman, A, Botsev, Y, Hahami, M & Tur, M 2016, Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator. in E Lewis (ed.), Sixth European Workshop on Optical Fibre Sensors., 99162X, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9916, SPIE, 6th European Workshop on Optical Fibre Sensors, Limerick, Ireland, 31/05/16. https://doi.org/10.1117/12.2236790

Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator. / Motil, A.; Davidi, R.; Bergman, A. et al.
Sixth European Workshop on Optical Fibre Sensors. ed. / Elfed Lewis. SPIE, 2016. 99162X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9916).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - The ability of Brillouin-based fiber-optic sensing to detect damage in a moving cantilever beam is demonstrated. A fully computerized, distributed and high spatial resolution (10cm) Fast-BOTDA interrogator (50 full-beam Brillouin-gain-spectra per second) successfully directly detected an abnormally stiffened (i.e., 'damaged') 20cm long segment in a 6m Aluminum beam, while the beam was in motion. Damage detection was based on monitoring deviations of the measured strain distribution along the beam from that expected in the undamaged case.

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KW - Structural health monitoring

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Motil A, Davidi R, Bergman A, Botsev Y, Hahami M, Tur M. Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator. In Lewis E, editor, Sixth European Workshop on Optical Fibre Sensors. SPIE. 2016. 99162X. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2236790

Damage detection in a cantilever beam under dynamic conditions using a distributed, fast, and high spatial resolution Brillouin interrogator

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Keywords

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