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Pregled bibliografske jedinice broj: 991749

Defect detection in concrete using principle component thermography


Milovanović, Bojan
Defect detection in concrete using principle component thermography // Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Novel Methods for Characterization of Materials and Structures / Gabrijel, Ivan ; Grosse, Christian ; Skazlić, Marijan (ur.).
Paris, France: RILEM Publications S.A.R.L., 2019. str. 201-208 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Defect detection in concrete using principle component thermography

Autori
Milovanović, Bojan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Novel Methods for Characterization of Materials and Structures / Gabrijel, Ivan ; Grosse, Christian ; Skazlić, Marijan - Paris, France : RILEM Publications S.A.R.L., 2019, 201-208

ISBN
978-2-35158-217-6

Skup
International Conference on Sustainable Materials, Systems and Structures – SMSS 2019 Novel Methods for Characterization of Materials and Strutures

Mjesto i datum
Rovinj, Hrvatska, 20-22.03.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nondestructive testing, Infrared thermography, Principle component analysis, Reinforced concrete, defect detection

Sažetak
In order to increase the service life of structures, Nondestructive Testing (NDT) methods are being used as an important characterization tool. Usually, two issues are relevant when inspecting concrete structures using NDT. The first one being the detection of defects, while the second issue is to reliably estimate the defect parameters like size and depth. The aim of this paper is to enhance the defect detection capability of Infrared Thermography (IRT) in concrete, where cooling down IRT will be used to identify subsurface defects. Defect/non-defect contrast for smaller and/or deeper defects will be increased using Principle component thermography (PCT) on data acquired using active thermography technique. As a statistical analysis tool Principal Component Analysis (PCA) is being used for identifying patterns in data and expressing the data in a manner which allows to accentuate the similarities and differences in patterns. PCA applied to the data in the form of thermogram sequence is called principal component thermography (PCT) where the results of the PCT are given as empirical orthogonal functions (EOF). The presented research proved that by using PCT proposed approach, one can significantly enhance the contrast of the defective area in concrete also for small and thin defects.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo



POVEZANOST RADA


Ustanove
Građevinski fakultet, Zagreb

Autor s matičnim brojem:
Bojan Milovanović, (299721)