열파 이미징에 의한 박리결함 열적 특성에 대한 광-적외선 열화상 시뮬레이션 연구
Study on Optical Infrared Thermography Simulation for Thermal Characteristics of Delamination by Thermal Wave Imaging
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this paper, optical infrared thermography simulation using thermal wave imaging technique is performed to analyze the thermal characteristics of delamination defects. In this study, lock-in thermography(LIT) and pulsed thermography(PT) simulation was performed to analyze the samples of european traditional tiles with delamination defects, and the analytical modeler was developed through the ANSYS 19.2 transient thermal analysis tool. Applied sinusoidal heating with modulation frequency according to pulse heating and phase locking technique. The thermal response of the sample surface by heating was recorded and then data analysis was performed. The temperature gradient characteristics of each technique were compared, and phase angle was calculated for the LIT to analyze the parameters for the experiment setting. The simulation model was developed as a useful data for practical optical infrared thermography tests.
Abstract
In this paper, optical infrared thermography simulation using thermal wave imaging technique is performed to analyze the thermal characteristics of delamination defects. In this study, lock-in thermography(LIT) and pulsed thermography(PT) simulation was performed to analyze the samples of european traditional tiles with delamination defects, and the analytical modeler was developed through the ANSYS 19.2 transient thermal analysis tool. Applied sinusoidal heating with modulation frequency according to pulse heating and phase locking technique. The thermal response of the sample surface by heating was recorded and then data analysis was performed. The temperature gradient characteristics of each technique were compared, and phase angle was calculated for the LIT to analyze the parameters for the experiment setting. The simulation model was developed as a useful data for practical optical infrared thermography tests.
참고문헌 (7)
- M. Choi, "Infrared Thermography Testing", Nondestructive Theory & Application, 9 (2011), NodeMedia
- Maldague Xavier, "Advances in signal processing for nondestructive evaluation of materials Vol. 262" (2012), Springer Science &Business Media
- S. Ranjit, "Application of thermal wave imaging and phase shifting method for defect detection in Stainless steel", Infrared Physics & Technology, 76, pp.676~683 (2016)
- Shrestha Ranjit, "Detection of Subsurface Defects in Metal Materials Using Infrared Thermography; Image Processing and Finite Element Modeling", 비파괴검사학회지, 34(2), pp.128~134 (2014), 한국비파괴검사학회[DOI]
- R. Waugh, "Modelling and evaluation of pulsed and pulse phase thermography through application of composite and metallic case studies", NDT E Int, 66, pp.52~66 (2014)
- Shrestha Ranjit, "Investigation of Lock-in Infrared Thermography for Evaluation of Subsurface Defects Size and Depth", International Journal of Precision Engineering and Manufacturing, 16(11), pp.2255~2264 (2015), 한국정밀공학회
- S. Ranjit, "Wavelet transform applied to lock-in thermographic data for detection of inclusions in composite structures:Simulation and experimental studies", Infrared Physics & Technology, 96, pp.98~112 (2019)