INFRARED THERMOGRAPHIC METHOD FOR DEPTH CHARACTERIZATION OF LOW SIZE/DEPTH ASPECT RATIO DEFECTS IN METAL PARTS
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F22%3A43967898" target="_blank" >RIV/49777513:23640/22:43967898 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.37904/metal.2022.4424" target="_blank" >https://doi.org/10.37904/metal.2022.4424</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/metal.2022.4424" target="_blank" >10.37904/metal.2022.4424</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
INFRARED THERMOGRAPHIC METHOD FOR DEPTH CHARACTERIZATION OF LOW SIZE/DEPTH ASPECT RATIO DEFECTS IN METAL PARTS
Popis výsledku v původním jazyce
Infrared thermography is a fast and illustrative nondestructive testing method, which is widely used for an inspection of metallic and non-metallic materials. Previously it was used mostly for defects indication. However, modern devices and software allow an application of a quantitative estimation of parameters of the defects. This contribution presents a novel infrared thermographic method for quantitative defect depth estimation. The majority of known thermographic techniques is based on a 1D heat transfer model and does not take into account 3D heat transfer. These methods are applicable only for large defects, which lateral size can be assumed as infinite. In contrast, the presented technique takes into account lateral dimension of defects and a finite thickness of a tested material. The method is based on a modification of the 1D analytical solution obtained by Almond et al. and a nonlinear optimization procedure. The algorithm was verified by numerical modelling and flash-pulse thermographic inspection experiments. Applicability of the method for the defect depth evaluation in the duraluminum parts was demonstrated.
Název v anglickém jazyce
INFRARED THERMOGRAPHIC METHOD FOR DEPTH CHARACTERIZATION OF LOW SIZE/DEPTH ASPECT RATIO DEFECTS IN METAL PARTS
Popis výsledku anglicky
Infrared thermography is a fast and illustrative nondestructive testing method, which is widely used for an inspection of metallic and non-metallic materials. Previously it was used mostly for defects indication. However, modern devices and software allow an application of a quantitative estimation of parameters of the defects. This contribution presents a novel infrared thermographic method for quantitative defect depth estimation. The majority of known thermographic techniques is based on a 1D heat transfer model and does not take into account 3D heat transfer. These methods are applicable only for large defects, which lateral size can be assumed as infinite. In contrast, the presented technique takes into account lateral dimension of defects and a finite thickness of a tested material. The method is based on a modification of the 1D analytical solution obtained by Almond et al. and a nonlinear optimization procedure. The algorithm was verified by numerical modelling and flash-pulse thermographic inspection experiments. Applicability of the method for the defect depth evaluation in the duraluminum parts was demonstrated.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/EF18_069%2F0010018" target="_blank" >EF18_069/0010018: LABIR-PAV / Předaplikační výzkum infračervených technologií</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
METAL 2022
ISBN
978-80-88365-06-8
ISSN
2694-9296
e-ISSN
—
Počet stran výsledku
6
Strana od-do
481-486
Název nakladatele
TANGER Ltd.
Místo vydání
BRNO
Místo konání akce
Brno
Datum konání akce
18. 5. 2022
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
—