KEYWORDS: Thermography, Solar radiation, Finite element methods, Temperature metrology, Mendelevium, Error analysis, Solar energy, Nondestructive evaluation, Sun, Transmission electron microscopy
Infrared thermography method is an effective technique for NDT of concrete structure. This paper describes the
determination of delamination depths in concrete structure using passive infrared thermography. The sequential
thermography data on the surface of concrete specimen are measured by infrared thermography with microbolometer
detector, and the solar energy is measured by pyrheliometer in all day. FEM analyses are carried out to calculate the
transient temperature on the concrete under the given weather and solar radiation conditions. Based on the results of
inverse analysis, in which computed temperature data were compared with experimental data, delamination depth was
quantitatively determined.
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