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석조문화유산의 박리검출을 위한 수동적 적외선 열화상분석의 적용성 연구

Study on Applicability of Passive Infrared Thermography Analysis for Blistering Detection of Stone Cultural Heritage

  • 조영훈 (공주대학교 문화재보존과학과) ;
  • 이찬희 (공주대학교 문화재보존과학과) ;
  • 유지현 (공주대학교 문화재보존과학과)
  • Jo, Young Hoon (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Lee, Chan Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Yoo, Ji Hyun (Department of Cultural Heritage Conservation Sciences, Kongju National University)
  • 투고 : 2013.02.06
  • 심사 : 2013.02.28
  • 발행 : 2013.03.20

초록

이 연구에서는 석조문화유산의 박리를 비파괴적으로 검출하기 위해 방위와 시간에 따른 수동적 적외선 열화상기법의 분석조건과 적용방법을 설정하였다. 이 결과, 수동적 열화상은 대기온도, 일사량 및 일조방향에 민감하게 반응하여 각 시간대별로 서로 다른 온도분포 특성을 나타냈다. 특히 6~17시 사이에 주기적으로 변하는 일사량과 일조방향은 암석의 표면온도를 불균질하게 만들었고, 박리가 존재하는 경우 외부환경에 따라 열 이동 차이가 생겨 특정시간대를 제외하고 건전부와 박리부의 표면온도 차이가 발생하였다. 시간에 따른 수동적 열화상분석의 박리검출 특성을 살펴본 결과, 전반적으로 북측면을 제외한 모든 방위에서 대기온도와 일사량이 급격히 증가하는 9시와 10시에 박리검출이 용이하였다. 그러나 이 연구는 가을에 수행되어 사계절에 대한 영향을 모두 고려하지 못했고, 수동적 열화상분석을 통해 박리부의 정량적인 발생면적을 파악하기에는 어려움이 있었다. 따라서 추가적으로 사계절에 대한 수동적 열화상분석의 종합고찰과 능동적 열화상분석을 이용한 박리 정량화 모델링 연구가 필요할 것으로 판단된다.

This study focused on analysis condition and application method of the passive infrared thermography according to the direction and time to nondestructively detect the blistering zone of stone cultural heritage. As a result, the passive thermographic images showed different temperature characteristics by time because it sensitively reacts to air temperature, insolation and sunshine direction. In particular, the insolation and sunshine direction, which are periodically changed from 6:00 to 17:00, irregularly made surface temperature. In addition, surface temperature differences were brought on fresh zones and blistering zones except specific time since blistering causes erratic thermal transfer. As a result of examining the detection characteristics of blistering by time, the blistering was well detected between 9:00 and 10:00 when there was rapid increase in air temperature and insolation in all direction except the north. However, this study isn't considered effects of four seasons because it is carried out in autumn, and the passive thermography has difficulty to analyze the quantitative area of blistering zone. Therefore, an additional study for synthetic consideration of the passive thermography analysis about four seasons and quantitative modeling of blistering zone using the active thermography are needed.

키워드

참고문헌

  1. Aggelis, D.G., Kordatos, E.Z., Soulioti, D.V. and Matikas, T.E., 2010, Combined use of thermography and ultrasound for the characterization of subsurface cracks in concrete. Construction and Building Materials, 24, 1888-1897. https://doi.org/10.1016/j.conbuildmat.2010.04.014
  2. Antczak, E., Defer, D., Elaoami, M., Chauchois, A. and Duthoit, B., 2007, Monitoring and thermal characterisation of fcement matrix materials using non-destructive testing. NDT & E International, 40, 428-438. https://doi.org/10.1016/j.ndteint.2007.02.006
  3. ASTM D4788-88, 2001, Standard test method for detecting delaminations in bridge decks using infrared thermography. American Society for Testing Materials, 2.
  4. Avdewlidis, N.P. and Moropoulou, A., 2004, Applications of infrared thermography for the investigation of historic structures. Journal of Cultural Heritage, 5, 119-127. https://doi.org/10.1016/j.culher.2003.07.002
  5. Eom, J.H., Cho, S.C., Lee, T.H. and Han, H.S., 2006, Stability evaluation of series and parallel varistor combination using thermal image analysis. Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 20, 22-29. (in Korean with English abstract) https://doi.org/10.5207/JIEIE.2006.20.8.022
  6. Grinzato, E., Bison, P.G. and Marinetti, S., 2002a, Monitoring of ancient buildings by the thermal method. Journal of Cultural Heritage, 3, 21-29. https://doi.org/10.1016/S1296-2074(02)01159-7
  7. Grinzato, E., Bressan, C., Marinetti, S., Bison, P.G. and Bonacina, C., 2002b, Monitoring of the Scrovegni Chapel by IR thermography: Giotto at infrared. Infrared Physics & Technology, 43, 165-169. https://doi.org/10.1016/S1350-4495(02)00136-6
  8. Housing Research Institute in Korea National Housing Corporation, 1998, Established plan to improve reliability of nondestructive test for concrete structures. Korea Research Institute of Standards and Science, 295. (in Korean)
  9. Inagaki, T., Ishii, T. and Iwamoto, T., 1999, On the NDT and E for the diagnosis of defects using infrared thermography. NDT & E International, 32, 247-257. https://doi.org/10.1016/S0963-8695(98)00059-0
  10. Kern, C.D., 1965, Evaluation of infrared emission of clouds and ground as measured by weather satellites. Ph.D. thesis, University of Washington, 1-111.
  11. Kim, W.T., Choi, M.Y., Park, H.W. and Han, Y.K., 2004, Thermography patterns and temperature profiles of blocks with internal defects. 2004 Annual Spring Conference of Korean Society for Nondestructive Testing, Busan, May 14-15, 164-169. (in Korean)
  12. Meola, C. and Carlomagno, G.M., 2006, Application of infrared thermography to adhesion science. Journal of Adhesion Science and Technology, 20, 589-632. https://doi.org/10.1163/156856106777412491
  13. Moropoulou, A., Avedelidis N.P., Koui, M. and Kakaras, K., 2001, An application of thermography for detection of delaminations in airport pavements. NDT & E International, 34, 329-335. https://doi.org/10.1016/S0963-8695(00)00047-5
  14. Nuzzo, L., Calia, A., Liberatore, D., Masini, N. and Rizzo, E., 2010, Integration of ground- penetrating radar, ultrasonic tests and infrared thermography for the analysis of a precious medieval rose window. Advanced Geosciences, 24, 69-82. https://doi.org/10.5194/adgeo-24-69-2010
  15. Sim, J., Zi, G., Park, J.H., Cho, H.N. and Lee, J.S., 2008, Review of the current infrared thermography techniques for detecting defects in civil structures. Journal of the Korea Institute for Structural Maintenance Inspection, 12, 71-83. (in Korean)
  16. Titman, D.J., 1990, Some applications of infra-red thermography to civil engineering problems. The British Journal of Nondestructive Testing, 32, 12.
  17. Titman, D.J., 2001, Applications of thermography in nondestructive testing of structures, NDT & E International, 34, 149-154. https://doi.org/10.1016/S0963-8695(00)00039-6
  18. Zi, G., Sim, J., Oh, H. and Lee, J., 2008, Optimum NDT using infrared thermography for defected concrete. In: Koh & Frangopol (eds), Bridge Maintenance, Safety, Management, Health Monitoring and Informatics. Taylor & Francis, London, 1223-1230.

피인용 문헌

  1. Nondestructive Deterioration Diagnosis for Wooden Ksitigarbha Triad Statues of Shinhungsa Temple in Sokcho, Korea vol.29, pp.2, 2013, https://doi.org/10.12654/JCS.2013.29.2.01
  2. Utilization of Hyperspectral Image Analysis for Monitoring of Stone Cultural Heritages vol.31, pp.4, 2015, https://doi.org/10.12654/JCS.2015.31.4.07