Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing

The paper explores the possibility of using high-resolution fiber Bragg grating (FBG) sensing technology for on-specimen strain measurement in the laboratory. The approach provides a means to assess the surface deformation of the specimen, both the axial and radial, through a chain of FBG sensor (C-...

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Main Authors: Isah, B.W., Mohamad, H.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23785 /
Published: MDPI AG 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104508785&doi=10.3390%2fs21092926&partnerID=40&md5=889bfede60b090c4a844110ec0baa55f
http://eprints.utp.edu.my/23785/
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spelling utp-eprints.237852021-08-19T13:10:03Z Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing Isah, B.W. Mohamad, H. The paper explores the possibility of using high-resolution fiber Bragg grating (FBG) sensing technology for on-specimen strain measurement in the laboratory. The approach provides a means to assess the surface deformation of the specimen, both the axial and radial, through a chain of FBG sensor (C-FBG), in a basic setup of a uniaxial compression test. The method is cost-effective, straightforward and can be commercialized. Two C-FBG; one was applied directly to the sample (FBGBare ), and the other was packaged (FBGPack) for ease of application. The approach measures the local strain with high-resolution and accuracy levels that match up to the existing local strain measuring sensors. The approach enables the evaluation of small-strain properties of the specimen intelligently. The finite element model analysis deployed has proven the adaptability of the technique for measuring material deformation. The adhesive thickness and packaging technique have been shown to influence the sensitivity of the FBG sensors. Owing to the relative ease and low-cost of instrumentation, the suggested method has a great potential to be routinely applied for elemental testing in the laboratory. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. MDPI AG 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104508785&doi=10.3390%2fs21092926&partnerID=40&md5=889bfede60b090c4a844110ec0baa55f Isah, B.W. and Mohamad, H. (2021) Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing. Sensors, 21 (9). http://eprints.utp.edu.my/23785/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description The paper explores the possibility of using high-resolution fiber Bragg grating (FBG) sensing technology for on-specimen strain measurement in the laboratory. The approach provides a means to assess the surface deformation of the specimen, both the axial and radial, through a chain of FBG sensor (C-FBG), in a basic setup of a uniaxial compression test. The method is cost-effective, straightforward and can be commercialized. Two C-FBG; one was applied directly to the sample (FBGBare ), and the other was packaged (FBGPack) for ease of application. The approach measures the local strain with high-resolution and accuracy levels that match up to the existing local strain measuring sensors. The approach enables the evaluation of small-strain properties of the specimen intelligently. The finite element model analysis deployed has proven the adaptability of the technique for measuring material deformation. The adhesive thickness and packaging technique have been shown to influence the sensitivity of the FBG sensors. Owing to the relative ease and low-cost of instrumentation, the suggested method has a great potential to be routinely applied for elemental testing in the laboratory. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Isah, B.W.
Mohamad, H.
spellingShingle Isah, B.W.
Mohamad, H.
Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
author_sort Isah, B.W.
title Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
title_short Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
title_full Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
title_fullStr Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
title_full_unstemmed Surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
title_sort surface-mounted bare and packaged fiber bragg grating sensors for measuring rock strain in uniaxial testing
publisher MDPI AG
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104508785&doi=10.3390%2fs21092926&partnerID=40&md5=889bfede60b090c4a844110ec0baa55f
http://eprints.utp.edu.my/23785/
_version_ 1741196731909931008
score 11.62408

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