Analysis of strain transfer between surface-bonded plastic optical fibers and concrete

Abstract. Plastic optical fibers (POFs) have many advantages compared with conventional optical fibers for sensing and monitoring applications in civil engineering. The monitoring capability of POF sensors depends on the strain transfer characteristics between POFs and host materials to a great extent. Theoretical analysis is performed to develop the strain transfer relationship between surface-bonded POFs and concrete. Besides, finite-element method is conducted for verification, and the main influencing parameters are studied respectively. The calculated results demonstrate that the effect of strain transfer is more significant when the POF is bonded close to the surface of concrete and the length of the adhesive layer ought to exceed 300 mm simultaneously, and the width, thickness, and shape of the adhesive layer have slight impact on the strain transfer.

[1]  Tengfei Bao.  Distributed Fiber Bragg Grating Sensors for Monitoring Cracks in Concrete Structures , 2012 .

[2]  K. Krebber,et al.  Polymer Optical Fiber Sensors for Distributed Strain Measurement and Application in Structural Health Monitoring , 2009, IEEE Sensors Journal.

[3]  Liang Ren,et al.  Strain Transfer Coefficient Analyses for Embedded Fiber Bragg Grating Sensors in Different Host Materials , 2009 .

[4]  Bo Zhang,et al.  Strain Transfer Analysis of Embedded Fiber Bragg Grating Strain Sensor , 2016 .

[5]  Jinping Ou,et al.  Review: optical fiber sensors for civil engineering applications , 2015 .

[6]  Peng Li,et al.  Concrete beam crack detection using tapered polymer optical fiber sensors , 2016 .

[7]  F. Ansari,et al.  MECHANICS OF BOND AND INTERFACE SHEAR TRANSFER IN OPTICAL FIBER SENSORS , 1998 .

[8]  Y. Pak,et al.  Longitudinal shear transfer in fiber optic sensors , 1992 .

[9]  Tengfei Bao,et al.  Crack monitoring capability of plastic optical fibers for concrete structures , 2015 .

[10]  Bin Shi,et al.  Performance evaluation of soil-embedded plastic optical fiber sensors for geotechnical monitoring , 2016 .

[11]  Shiuh-Chuan Her,et al.  Effect of Coating on the Strain Transfer of Optical Fiber Sensors , 2011, Sensors.

[12]  António Barrias,et al.  A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications , 2016, Sensors.

[13]  X. W. Ye,et al.  Structural Health Monitoring of Civil Infrastructure Using Optical Fiber Sensing Technology : A Comprehensive Review , 2015 .

[14]  J. Zhou,et al.  Study on Strain Transfer Characteristics of Fiber Bragg Grating Sensors , 2010 .

[15]  Christopher K.Y. Leung,et al.  Investigation of the strain transfer for surface-attached optical fiber strain sensors , 2008 .

[16]  Farhad Ansari,et al.  Elasto-Plastic Bonding of Embedded Optical Fiber Sensors in Concrete , 2002 .