[논문]적외선 열화상 기법을 이용한 용접부의 결함 비파괴 측정기법

박수범; 오진탁; 주영규

doi:10.5659/jaik_sc.2017.33.11.3

적외선 열화상 기법을 이용한 용접부의 결함 비파괴 측정기법
Non-destructive Measurement Technique of Welding Using Infrared Thermography Technique

大韓建築學會論文集. Journal of the architectural institute of korea. 構造系, v.33 no.11 = no.349, 2017년, pp.3 - 10

박수범 (고려대 대학원) , 오진탁 (한국시설안전공단) , 주영규 (고려대 건축사회환경공학부)

Abstract ▼ AI-Helper

Recently, the Infrared-Thermography Technique is widely used for nondestructive testing (NDT) of structures due to its convenience. In particular, various techniques have been applied to detect imperfections such as surface defects and welding defects of steel structures. This paper is a part of a study to detect defects in weld zone in steel structures using Infrared Thermography techniques. The temperature on steel structures surface depends on the material and thermal properties such as specific heat, thermal conductivity, and thermal diffusion coefficient. In this study, Infrared thermography technique was used to detect the information on the diagnosis of steel structure in welds. Test specimens were prepared with artificial defects, then the passive and active methods were used to determine damages on the steel structures in welds as well to detect the defects. Finally, defects were observed by comparing infrared thermal image and surface temperature data of defected area with the normal area. Furthermore, the defects were measured using the standard deviation of the temperature corresponding to the weld. For normal weld, the standard deviation of the temperature corresponding to the weld zone was low; although the standard deviation of the weld defects zone was high.

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참고문헌 (14)

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원문보기 상세보기
Jung, Y., Roh, C., Lee, G., & Kim, J. (2016). Reliability Evaluation of a Motor Core Applied Ultrasound Infrared Thermography Technique, Journal of the Korean Society of Manufacturing Process Engineers, 15(4), 60-66

원문보기 상세보기
Yun, J., Paik, I., & Cho, S. (2006). Non-Destructive Corrosion Measurement Technique of Reinforcing Bar Using Infrared Thermography according to Atmosphere Temperature, Journal of the Korean Concrete Institute, 233-236
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Grande, N. & Durbin, P. (1999). Using emissivity-corrected thermal maps to locate deep structural defects in concrete bridge decks, SPIE Conference 2456, 250-261

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적외선 열화상 기법을 이용한 용접부의 결함 비파괴 측정기법
Non-destructive Measurement Technique of Welding Using Infrared Thermography Technique

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적외선 열화상 기법을 이용한 용접부의 결함 비파괴 측정기법 Non-destructive Measurement Technique of Welding Using Infrared Thermography Technique

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적외선 열화상 기법을 이용한 용접부의 결함 비파괴 측정기법
Non-destructive Measurement Technique of Welding Using Infrared Thermography Technique