Reliability assessment of pultruded FRP reinforcements with embedded fiber optic sensors

被引：38

作者：

Kalamkarov, AL ^{[1
]}

MacDonald, DO ^{[1
]}

Fitzgerald, SB ^{[1
]}

Georgiades, AV ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Mech Engn, Halifax, NS B3J 2X4, Canada

来源：

COMPOSITE STRUCTURES | 2000年 / 50卷 / 01期

关键词：

smart FRP composites; pultrusion; fiber optics; sensors; mechanical properties; fatigue and creep testing;

D O I：

10.1016/S0263-8223(00)00081-7

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Fiber optic strain sensors are successfully embedded in glass and carbon fiber reinforced polymer (GFRP and CFRP) reinforcements during pultrusion. The specific application is the use of the smart composite reinforcements for strain monitoring of innovative civil engineering structures. A comprehensive reliability assessment of the pultruded smart FRP rods with embedded sensors is performed, encompassing mechanical tests at room temperature as well as under conditions of low and high temperatures. In these tests, the strain output from the embedded fiber optic sensors was in good agreement with the output from surface mounted extensometers. The fatigue and short-term creep behavior of the smart composite rods is also examined. Finally, the long-term performance of the smart composites under sustained loads in alkaline environments simulating conditions encountered in concrete structures is assessed. The experiments conducted showed that the strain from the embedded fiber optic sensors conformed well with the corresponding output from the extensometers or foil gages. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：69 / 78

页数：10

共 21 条

[1]

[Anonymous], 1972, ASTM SPEC TECH PUBL

[2]

BADCOCK RA, 1995, P SOC PHOTO-OPT INS, V2444, P422, DOI 10.1117/12.207705

[3] DECAY OF ULTRAVIOLET-INDUCED FIBER BRAGG GRATINGS [J].

ERDOGAN, T ;

MIZRAHI, V ;

LEMAIRE, PJ ;

MONROE, D .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (01) :73-80

[4] Demonstration of distributed strain sensing in production scale instrumented structures [J].

Friebele, EJ ;

Askins, CG ;

Putnam, MA ;

Heider, PE ;

Blosser, RG ;

Florio, J ;

Donti, RP ;

Garcia, J .

INDUSTRIAL AND COMMERCIAL APPLICATIONS OF SMART STRUCTURES TECHNOLOGIES - SMART STRUCTURES AND MATERIALS 1996, 1996, 2721 :118-124

[5]

FRIEBELE EJ, 1994, P SOC PHOTO-OPT INS, V2361, P338, DOI 10.1117/12.184860

[6] Creep and physical aging in a polymeric composite: Comparison of tension and compression [J].

Gates, TS ;

Veazie, DR ;

Brinson, LC .

JOURNAL OF COMPOSITE MATERIALS, 1997, 31 (24) :2478-2505

[7]

Gibson RF, 1994, PRINCIPLES COMPOSITE, P131

[8]

GUNTHER MF, 1994, P SOC PHOTO-OPT INS, V2191, P2, DOI 10.1117/12.173935

[9]

HABEL WR, 1994, P SOC PHOTO-OPT INS, V2361, P168, DOI 10.1117/12.184817

[10] EXPERIMENTAL-STUDY OF MECHANICAL-BEHAVIOR OF COMPOSITE CABLES FOR PRESTRESS [J].

KACI, S .

JOURNAL OF ENGINEERING MECHANICS-ASCE, 1995, 121 (06) :709-716

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