Rock stiffness measurements fibre Bragg grating sensor (FBGs) and the effect of cyanoacrylate and epoxy resin as adhesive materials

被引：14

作者：

Isah, B. W. ^{[1
,2
]}

Mohamad, H. ^{[1
]}

Ahmad, N. R. ^{[1
]}

机构：

[1] Univ Teknol PETRONAS, Civil & Environm Engn Dept, Bandar Seri Iskandar Per 32610, Malaysia

[2] Bayero Univ Kano, Civil Engn Dept, PMB 3011 Kano, Kano, Nigeria

来源：

AIN SHAMS ENGINEERING JOURNAL | 2021年 / 12卷 / 02期

关键词：

Fiber Bragg Grating sensor (FBGs); Adhesives; Uniaxial compression test; Stiffness; Strain measurement; UNIAXIAL COMPRESSIVE STRENGTH; MECHANICAL-PROPERTIES; PHYSICAL-PROPERTIES; OPTICAL FIBERS; MODULUS;

D O I：

10.1016/j.asej.2020.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the influence of adhesive type and its thickness performance when a highly sensitive Fibre Bragg grating (FBG) sensor is used to determine the stiffness properties of rock and cementitious material. Laboratory uniaxial tests were conducted on limestone and cement-paste specimens, equipped with strain gauges and FBGs attached locally using cyanoacrylate and epoxy-based adhesives. Differences were observed in the FBGs measured strains and the calculated elastic parameters between sensors attached with cyanoacrylate and epoxy-based on the same material (rock and cement). Smaller changes in strain are observed when FBG is attached with cyanoacrylate. Finite Element modelling indicated a reduction in peak strain and increase in Young's modulus from FBG compared to the rock when the adhesive thickness is increased. Also, the strain and stiffness determined vary with the adhesive type. Cyanoacrylate adhesive is relatively more suitable as it gives FBG strain values closer to that of the rock as opposed to Epoxy. (C) 2020 The Authors. Published by Elsevier B.V. on behalf of Faculty of Engineering, Ain Shams University.

引用

页码：1677 / 1691

页数：15

共 54 条

[1] Review of optical fibers-introduction and applications in fiber lasers [J].

Addanki, Satish ;

Amiri, I. S. ;

Yupapin, P. .

RESULTS IN PHYSICS, 2018, 10 :743-750

[2]

[Anonymous], 2018, MATEC WEB C 203

[3]

[Anonymous], 2002, ASTM, V04, P1, DOI [10.1520/D7012-10.1, DOI 10.1520/D7012-10.1]

[4]

ASTM International, 2002, Annu B ASTM Stand, P1, DOI [10.1520/D0790-17.2, DOI 10.1520/D0790-17.2]

[5]

Balarabe Isah W., 2018, MATEC Web of Conferences, V203, DOI 10.1051/matecconf/201820304001

[6] Evaluation of rock mechanical behaviors under uniaxial compression with reference to assessed weathering grades [J].

Basu, A. ;

Celestino, T. B. ;

Bortolucci, A. A. .

ROCK MECHANICS AND ROCK ENGINEERING, 2009, 42 (01) :73-93

[7]

Bhavikatti, 2010, MECH SOLIDS+

[8]

Bhd MCS, SEAL ADH MAN

[9] SUGGESTED METHODS FOR DETERMINING THE UNIAXIAL COMPRESSIVE STRENGTH AND DEFORMABILITY OF ROCK MATERIALS .1. SUGGESTED METHOD FOR DETERMINATION OF THE UNIAXIAL COMPRESSIVE STRENGTH OF ROCK MATERIALS [J].

BIENIAWSKI, ZT ;

BERNEDE, MJ .

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 1979, 16 (02) :137-138

[10] Packaging methods of fiber-Bragg grating sensors in civil structure applications [J].

Bin Lin, Y ;

Chang, KC ;

Chern, JC ;

Wang, LA .

IEEE SENSORS JOURNAL, 2005, 5 (03) :419-424

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