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Evaluation of gluing of CFRP onto concrete structures by infrared thermography coupled with thermal impedance
- Source :
- Composites Part B: Engineering, Composites Part B: Engineering, Elsevier, 2015, 69, pp.350-358. ⟨10.1016/j.compositesb.2014.10.002⟩, Composites Part B: Engineering, 2015, 69, pp.350-358. ⟨10.1016/j.compositesb.2014.10.002⟩
- Publication Year :
- 2015
- Publisher :
- HAL CCSD, 2015.
-
Abstract
- Carbon Fiber Reinforced Polymers (CFRPs) have been increasingly employed for structural strengthening, and are attached to structures using bonding adhesives. The aim of this work is to characterize defects in the bond between CFRP and concrete (after they are located by pulse infrared thermography), and assign the defects a “numerical value” (ranging from 0 for a complete air–gap to 1 for a fully glued bond). Quantitative characterization is performed by measuring the thermal impedance, and then identifying the thermophysical parameters of the system through fitting the measured impedance to a theoretical model. An inversion procedure is carried out to estimate the unknown parameters, without prior knowledge of sample properties. In particular, it is possible to estimate more accurately both the amount of glue within a defect and the thermal contact resistance.
- Subjects :
- 010302 applied physics
Thermal contact conductance
Materials science
[SPI.GCIV.CD]Engineering Sciences [physics]/Civil Engineering/Construction durable
Infrared
business.industry
Mechanical Engineering
Thermal resistance
02 engineering and technology
Structural engineering
021001 nanoscience & nanotechnology
01 natural sciences
Industrial and Manufacturing Engineering
Characterization (materials science)
Mechanics of Materials
0103 physical sciences
Thermography
Ceramics and Composites
Adhesive
Composite material
0210 nano-technology
GLUE
business
Electrical impedance
ComputingMilieux_MISCELLANEOUS
Subjects
Details
- Language :
- English
- ISSN :
- 13598368 and 18791069
- Database :
- OpenAIRE
- Journal :
- Composites Part B: Engineering, Composites Part B: Engineering, Elsevier, 2015, 69, pp.350-358. ⟨10.1016/j.compositesb.2014.10.002⟩, Composites Part B: Engineering, 2015, 69, pp.350-358. ⟨10.1016/j.compositesb.2014.10.002⟩
- Accession number :
- edsair.doi.dedup.....a6ed654289ab7e563526b33bea771a74