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Title: Crack monitoring using multiple smart materials; fiber-optic sensors & piezo sensors
Authors: Maheshwari, Muneesh
Annamdas, Venu Gopal Madhav
Pang, John Hock Lye
Asundi, Anand
Tjin, Swee Chuan
Keywords: Fiber-optic Polarimetric Sensor (FOPS)
Fiber Bragg Grating (FBG)
DRNTU::Engineering::Mechanical engineering
Issue Date: 2017
Source: Maheshwari, M., Annamdas, V. G. M., Pang, J. H. L., Asundi, A., & Tjin, S. C. (2017). Crack monitoring using multiple smart materials; fiber-optic sensors & piezo sensors. International Journal of Smart and Nano Materials, 8(1), 41-55. doi:10.1080/19475411.2017.1298220
Series/Report no.: International Journal of Smart and Nano Materials
Abstract: This article focuses on health monitoring of structures using multiple smart materials. In this research, two fiber-optic sensors, namely fiber Bragg grating (FBG) and fiber-optic polarimetric sensor (FOPS), are investigated for damage detection in the beam specimen. FBG is used for local strain measurement while FOPS is used for global strain measurement. Both FBG and FOPS show significant changes in the strain due to damages in the specimen. Also, at the center of the specimen, piezoelectric wafer active sensor (PWAS) is attached. The electromechanical admittance (EMA) signature of the specimen beam is recorded by PWAS. The changes in the amplitudes of the peaks obtained at various frequencies in this EMA signature are analyzed, and it is shown that the peak amplitudes respond differently to damages and to change in loading. Thus, multiple smart materials (FBG, FOPS, and PWAS) are used to get improved information on the health of the beam.
ISSN: 1947-5411
DOI: 10.1080/19475411.2017.1298220
Rights: © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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