High-resolution Brillouin analysis of composite materials beams

Yosef London; Yair Antman; Maayan Silbiger; Liel Efraim; Avihay Froochzad; Gadi Adler; Eyal Levenberg; Avi Zadok

doi:10.1117/12.2194521

High-resolution Brillouin analysis of composite materials beams

Yosef London
, Yair Antman
, Maayan Silbiger
, Liel Efraim
, Avihay Froochzad
, Gadi Adler
, Eyal Levenberg
, Avi Zadok

Bar-Ilan University
Xenom Ltd
Technion-Israel Institute of Technology

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

Abstract

High-resolution Brillouin optical correlation domain analysis of fibers embedded within beams of composite materials is performed with 4 cm resolution and 0.5 MHz sensitivity. Two new contributions are presented. First, analysis was carried out continuously over 30 hours following the production of a beam, observing heating during exothermal curing and buildup of residual strains. Second, the bending stiffness and Young's modulus of the composite beam were extracted based on distributed strain measurements, taken during a static three-point bending experiment. The calculated parameters were used to forecast the beam deflections. The latter were favorably compared against external displacement measurements.

Original language	English
Title of host publication	24th International Conference on Optical Fibre Sensors
Publisher	SPIE
Publication date	2015
Article number	96346N
DOIs	https://doi.org/10.1117/12.2194521
Publication status	Published - 2015
Externally published	Yes
Event	24th International Conference on Optical Fibre Sensors - Curitiba , Brazil Duration: 28 Sept 2015 → 2 Oct 2015 Conference number: 24

Conference

Conference	24th International Conference on Optical Fibre Sensors
Number	24
Country/Territory	Brazil
City	Curitiba
Period	28/09/2015 → 02/10/2015

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Keywords

Stimulated Brillouin scattering
Optical fiber sensors
Structural health monitoring
Composite materials
Distributed sensors
Strain measurements

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10.1117/12.2194521

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@inproceedings{57a334519cec4e5a8829006f766da7b8,

title = "High-resolution Brillouin analysis of composite materials beams",

abstract = "High-resolution Brillouin optical correlation domain analysis of fibers embedded within beams of composite materials is performed with 4 cm resolution and 0.5 MHz sensitivity. Two new contributions are presented. First, analysis was carried out continuously over 30 hours following the production of a beam, observing heating during exothermal curing and buildup of residual strains. Second, the bending stiffness and Young's modulus of the composite beam were extracted based on distributed strain measurements, taken during a static three-point bending experiment. The calculated parameters were used to forecast the beam deflections. The latter were favorably compared against external displacement measurements.",

keywords = "Stimulated Brillouin scattering, Optical fiber sensors, Structural health monitoring, Composite materials, Distributed sensors, Strain measurements",

author = "Yosef London and Yair Antman and Maayan Silbiger and Liel Efraim and Avihay Froochzad and Gadi Adler and Eyal Levenberg and Avi Zadok",

year = "2015",

doi = "10.1117/12.2194521",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

booktitle = "24th International Conference on Optical Fibre Sensors",

address = "United States",

note = "24th International Conference on Optical Fibre Sensors, OFS-24 ; Conference date: 28-09-2015 Through 02-10-2015",

}

London, Y, Antman, Y, Silbiger, M, Efraim, L, Froochzad, A, Adler, G, Levenberg, E & Zadok, A 2015, High-resolution Brillouin analysis of composite materials beams. in 24th International Conference on Optical Fibre Sensors., 96346N, SPIE, Proceedings of SPIE - The International Society for Optical Engineering, 24th International Conference on Optical Fibre Sensors, Curitiba , Brazil, 28/09/2015. https://doi.org/10.1117/12.2194521

High-resolution Brillouin analysis of composite materials beams. / London, Yosef; Antman, Yair; Silbiger, Maayan et al.
24th International Conference on Optical Fibre Sensors. SPIE, 2015. 96346N (Proceedings of SPIE - The International Society for Optical Engineering).

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

TY - GEN

T1 - High-resolution Brillouin analysis of composite materials beams

AU - London, Yosef

AU - Antman, Yair

AU - Silbiger, Maayan

AU - Efraim, Liel

AU - Froochzad, Avihay

AU - Adler, Gadi

AU - Levenberg, Eyal

AU - Zadok, Avi

N1 - Conference code: 24

PY - 2015

Y1 - 2015

N2 - High-resolution Brillouin optical correlation domain analysis of fibers embedded within beams of composite materials is performed with 4 cm resolution and 0.5 MHz sensitivity. Two new contributions are presented. First, analysis was carried out continuously over 30 hours following the production of a beam, observing heating during exothermal curing and buildup of residual strains. Second, the bending stiffness and Young's modulus of the composite beam were extracted based on distributed strain measurements, taken during a static three-point bending experiment. The calculated parameters were used to forecast the beam deflections. The latter were favorably compared against external displacement measurements.

AB - High-resolution Brillouin optical correlation domain analysis of fibers embedded within beams of composite materials is performed with 4 cm resolution and 0.5 MHz sensitivity. Two new contributions are presented. First, analysis was carried out continuously over 30 hours following the production of a beam, observing heating during exothermal curing and buildup of residual strains. Second, the bending stiffness and Young's modulus of the composite beam were extracted based on distributed strain measurements, taken during a static three-point bending experiment. The calculated parameters were used to forecast the beam deflections. The latter were favorably compared against external displacement measurements.

KW - Stimulated Brillouin scattering

KW - Optical fiber sensors

KW - Structural health monitoring

KW - Composite materials

KW - Distributed sensors

KW - Strain measurements

U2 - 10.1117/12.2194521

DO - 10.1117/12.2194521

M3 - Article in proceedings

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - 24th International Conference on Optical Fibre Sensors

PB - SPIE

T2 - 24th International Conference on Optical Fibre Sensors

Y2 - 28 September 2015 through 2 October 2015

ER -

High-resolution Brillouin analysis of composite materials beams

Abstract

Conference

Keywords

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