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Monitoring corrosion of reinforcement in concrete structures via fiber Bragg grating sensors

Zhupeng ZHENG, Xiaoning SUN, Ying LEI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 316-319 doi: 10.1007/s11465-009-0040-y

Abstract: In this paper, using fiber Bragg grating (FBG), a corrosion sensor for monitoring steel rebars embeddedvolume and diameter of a rebar embedded in concrete will enlarge due to corrosion, an FBG packaged with fiber-reinforcedDuring corrosion, the increase in the bar diameter leads to the increase in fiber strain, which can be

Keywords： fiber Bragg grating (FBG)     corrosion     concrete structures     accelerated corrosion test    

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Digital monitoring and health diagnosis for mechanical equipment operation safety based on fiber Bragggrating sensor

Zude ZHOU, Desheng JIANG, Quan LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 5-14 doi: 10.1007/s11465-009-0011-3

Abstract: This paper introduces fiber Bragg grating (FBG) based on a fiber optic grating sensor developed to be

Keywords： fiber Bragg grating sensor (FBGS)     mechanical equipment operation safety     embedded technology     high-speed    

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Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

Xiangjie WANG, Danhui DAN, Rong XIAO, Xingfei YAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 286-292 doi: 10.1007/s11709-017-0415-9

Abstract: A wind pressure sensor based on fiber Bragg grating (FBG) for engineering structure was investigated

Keywords： wind pressure measurement     wind pressure sensor     fiber Bragg grating     optimal design    

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Crack detection for wading-concrete structures using water irrigation and electric heating

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 368-377 doi: 10.1007/s11709-022-0926-x

Abstract: Cracking in wading-concrete structures has a worse impact on structural safety compared with conventional concrete structures. The accurate and timely monitoring of crack development plays a significant role in the safety of wading-concrete engineering. The heat-transfer rate near a crack is related to the flow velocity of the fluid in the crack. Based on this, a novel crack-identification method for underwater concrete structures is presented. This method uses water irrigation to generate seepage at the interface of a crack; then, the heat-dissipation rate in the crack area will increase because of the convective heat-transfer effect near the crack. Crack information can be identified by monitoring the cooling law and leakage flow near cracks. The proposed mobile crack-monitoring system consists of a heating system, temperature-measurement system, and irrigation system. A series of tests was conducted on a reinforced-concrete beam using this system. The crack-discrimination index ψ was defined, according to the subsection characteristics of the heat-source cooling curve. The effects of the crack width, leakage flow, and relative positions of the heat source and crack on ψ were studied. The results showed that the distribution characteristics of ψ along the monitoring line could accurately locate the crack, but not quantify the crack width. However, the leakage flow is sensitive to the crack width and can be used to identify it.

Keywords： structural health monitoring     underwater concrete structure     fiber Bragg grating     crack detection     temperature    

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Corrugated steel pipe culvert applying in highway and strain measuring with fiber grating test technology

Cheng Gang,Fang Ping

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 108-112

Abstract: testing the strain conditions of corrugated steel pipe culvert under different soil fill heights, the fiberBragg grating sensors were set in the inner or outer of corrugated steel pipe culverts.

Keywords： corrugated steel pipe culvert     highway     soft foundation     field test     fiber test    

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Displacement measuring grating interferometer: a review Special Feature on Precision Measurement and Inst

Peng-cheng HU, Di CHANG, Jiu-bin TAN, Rui-tao YANG, Hong-xing YANG, Hai-jin FU

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5,   Pages 631-654 doi: 10.1631/FITEE.1800708

Abstract:

A grating interferometer, called the “optical encoder,” is a commonly used tool for precise displacementIn contrast to a laser interferometer, a grating interferometer is insensitive to the air refractiveClassified based on the measuring principle and optical configuration, a grating interferometer experiencesCompared with the former two, the spatially separated heterodyne grating interferometer could achieveThe development of incremental displacement measuring grating interferometers achieved in recent years

Keywords： Grating interferometer     Optical encoder     Displacement measurement     Precision measurement    

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Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 147-152 doi: 10.1007/s11709-012-0158-6

Abstract: Recent researches show some interests in investigation of inclusion of randomly distributed fiber instudy is related to effective parameters on strength of the clayey sand composite with using natural fiberand plastic fiber and different fiber contents and length.The fiber percentage varied from 0% (for unreinforced samples) to 4% and fiber length varied from 8 toThe fiber length and fiber content found to play important rule on the strength of fiber reinforced composite

Keywords： triaxial     consolidated undrained (CU)     fiber     strength    

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Mechanical properties of steel, glass, and hybrid fiber reinforced reactive powder concrete

Atheer H.M. ALGBURI, M. Neaz SHEIKH, Muhammad N.S. HADI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 998-1006 doi: 10.1007/s11709-019-0533-7

Abstract: This study examines the properties of fiber-reinforced reactive powder concrete (FR-RPC).Steel fibers of 13 mm length and 0.2 mm diameter were used to prepare the steel fiber-reinforced RPCGlass fibers of 13 mm length and 1.3 mm diameter were used to prepare the glass fiber-reinforced RPCThe hybrid fiber-reinforced RPC (HFR-RPC) was prepared by mixing 0.9% steel fibers and 0.6% glass fibers

Keywords： reactive powder concrete     steel fiber     glass fiber     hybrid fiber    

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The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 86-94

Abstract: this paper, new development about the study of dispersion-compensable low transmission loss optical fiber, nonzero dispersion displacement optical fiber, and carbon-coated or silicon nitride-coated opticalfiber (applied in bad environment) was comprehensively introduced.Then the manufacture technology of band optical fiber including its structure, coatings, properties andMulti-core optical fiber band cable manufacture technology such as twisted loose-tube, center loose-tube

Keywords： optical communication     low transmission loss optical fiber     optical fiber band     band optical fiber cable    

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Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 411-428 doi: 10.1007/s11709-023-0928-3

Abstract: In this study, ultrahigh-performance fiber-reinforced concrete (UHPFRC) used in a type B70 concrete sleeperThe main parameters investigated are the steel fiber volume fractions (0%, 0.5%, 1%, and 1.5%).study results show that the behavior of UHPFRC sleepers improves significantly when the amount of steel fiberSleepers manufactured using UHPFRC with a steel fiber volume fraction of 1% and a concrete volume less

Keywords： pre-stressed concrete sleeper     ultrahigh performance fiber-reinforced concrete     pull-out test     staticbending test     steel fiber     aspect ratio     volume fraction    

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Studies of fiber-matrix debonding

Navneet DRONAMRAJU,Johannes SOLASS,Jörg HILDEBRAND

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 448-456 doi: 10.1007/s11709-015-0316-8

Abstract: In this paper, the debonding of a single fiber-matrix system of carbon fiber reinforced composite (CFRPtangential slip distance and artificial damping coefficient on the debonding length at the interface of the fiber-matrix

Keywords： single fibre     cohesive zone model     interface debonding     carbon fiber reinforced composite (CFRP)    

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Time- and temperature-dependence of compressive and tensile behaviors of polypropylene fiber-reinforced

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1025-1037 doi: 10.1007/s11709-021-0741-9

Abstract: The understanding of compressive and tensile behaviors of polypropylene fiber-reinforced cemented paste

Keywords： cemented paste backfill     fiber reinforcement     constitutive behavior     temperature     tailings    

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Fabrication of recyclable Fe chelated aminated polypropylene fiber for efficient clean-up of phosphate

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 840-852 doi: 10.1007/s11705-022-2253-0

Abstract: Herein, a Fe3+-loaded aminated polypropylene fiber has been reported as an efficient phosphateThe remarkable phosphate removal ability of the fiber is due to Fe3+ immobilization, and itAdsorption experiments showed that the fiber is applicable over a wide pH range from 2 to 9.The adsorption equilibrium of the fiber for phosphate was reached within 60 min, indicating an efficientOverall, this study proves that the fiber possesses many advantages for phosphate removal, including

Keywords： phosphate adsorption     aminated polypropylene fiber     Fe3+     ligand exchange     reusability    

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Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1588-6

Abstract:

● A PAA-ZnO-HDTMS flax fiber with UV-induced switchable wettability

Keywords： Flax fiber     Switchable wettability     ZnO-HDTMS coating     Oil-water separation    

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Fatigue shear performance of concrete beams reinforced with hybrid (glass-fiber-reinforced polymer+ steel

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 576-594 doi: 10.1007/s11709-021-0728-6

Abstract: Reinforced concrete beams consisting of both steel and glass-fiber-reinforced polymer rebars exhibitFor specimens that failed by fatigue shear, all the glass-fiber-reinforced polymer stirrups and someThe fatigue strength of the glass-fiber-reinforced polymer stirrups in the specimens was considerablytests on the glass-fiber-reinforced polymer bar, and the failure modes were different.Glass-fiber-reinforced polymer stirrups were subjected to fatigue tension and shear, and failed owing

Keywords： fatigue     shear     hybrid stirrups     hybrid reinforcement     fiber-reinforced polymer    

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Title Author Date Type Operation

Monitoring corrosion of reinforcement in concrete structures via fiber Bragg grating sensors

Zhupeng ZHENG, Xiaoning SUN, Ying LEI

Journal Article

Digital monitoring and health diagnosis for mechanical equipment operation safety based on fiber Bragggrating sensor

Zude ZHOU, Desheng JIANG, Quan LIU

Journal Article

Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

Xiangjie WANG, Danhui DAN, Rong XIAO, Xingfei YAN

Journal Article

Crack detection for wading-concrete structures using water irrigation and electric heating

Journal Article

Corrugated steel pipe culvert applying in highway and strain measuring with fiber grating test technology

Cheng Gang,Fang Ping

Journal Article

Displacement measuring grating interferometer: a review

Peng-cheng HU, Di CHANG, Jiu-bin TAN, Rui-tao YANG, Hong-xing YANG, Hai-jin FU

Journal Article

Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Journal Article

Mechanical properties of steel, glass, and hybrid fiber reinforced reactive powder concrete

Atheer H.M. ALGBURI, M. Neaz SHEIKH, Muhammad N.S. HADI

Journal Article

The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Journal Article

Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Journal Article

Studies of fiber-matrix debonding

Navneet DRONAMRAJU,Johannes SOLASS,Jörg HILDEBRAND

Journal Article

Time- and temperature-dependence of compressive and tensile behaviors of polypropylene fiber-reinforced

Journal Article

Fabrication of recyclable Fe chelated aminated polypropylene fiber for efficient clean-up of phosphate

Journal Article

Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Journal Article

Fatigue shear performance of concrete beams reinforced with hybrid (glass-fiber-reinforced polymer+ steel

Journal Article