Browse > Article

A Study of the Fatigue Crack Propagation Behavior According to the Moment Change using Infrared Thermography  

Kim, Kyeong-Suk (조선대학교 기계설계공학과)
Jung, Hyun-Chul (조선대학교 기계설계공학과)
Pack, Chan-Joo (조선대학교 기계설계공학과 대학원)
Jung, Duk-Woon (조선대학교 첨단부품소재공학과 대학원)
Chang, Ho-Sub (조선대학 레이저응용 신기술개발 연구센터)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.19, no.3, 2010 , pp. 359-364 More about this Journal
Abstract
The objective of this study is to propose an effective method for measurement and analysis of fatigue crack. A technique that can measure the statue of fatigue crack propagation fast and correctly for enhancing safety of constructions and securing reliability is necessary. Moreover, the crack propagation behavior characteristics evaluation technique has to be developed using this technique. In this paper, fatigue crack was caused via the fatigue experiment with repeated load on the CT specimen that is made up of STS304. Fatigue crack propagation was measured by tracing the position of the maximum temperature according to the cycles using infrared thermography. The crack growth characteristics was evaluated by applying the moment values on the measuring area to the measured value. As a result of this study, the possibility that the infrared thermography could be applied to measure the fatigue crack was identified. Moreover, it was identified that fatigue crack propagation have a relationship with the moment value of construction.
Keywords
Infrared thermography; Fatigue; Fatigue Crack Propagation; Moment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Bremond, P. and Potet, P., 2001, Lock-in Thermography: A tool to analyse and locate thermo-mechanical mechanisms in materials and structures, Thermosense XXII, New York, pp. 4360-4376.
2 Kim, W. T., Kang K. S., Choi, M. Y., Park, J. H., and Huh, Y. H., 2006, "Stress Analysis and Fatigue Limit Evaluation of Plate with Notch by Lock In Thermography," Journal of the Korean Society for Nondestructive Testing, Vol. 26, No. 5, pp. 315-320.   과학기술학회마을
3 Kim, J. Y., Shim, J. G, Yang, D. J., and Yu, S., 2000, "Heat Analysis of Welding-bead using Infrared Thermoimage Camera," J of Korea Society of Machine Tool Engineers, Vol.1, pp. 57-62.
4 Gaussorgurs, G., 1994, Infrared themography, translated by Chomet, S., Champman & Hall, London, pp. 375-431.
5 Dieter, G. E., 1990, Mechnical Metallurgy, Third Edition, McGraw-hill, New York, pp. 375-431.
6 Kim, C. J., Lim, B. S., and Kim, H. C., 1994, "Oxidation and Fatigue Crack Propagation Behavior by Temperature Variation of STS 316 Stainless Steel," Transactions of the KSAE, Vol. 1, No. 2, pp. 399-404 .
7 Han, S. H., 1997, "Crack Length Measurement Method for Evaluation of Fatigue Crack Propagation Behavior : Direct Current Potential Drop Method," Transactions of the KSME, Vol. 37, No. 10, pp. 41-46.
8 An, C. B. and Choi, B. G., 1999, "Influence of Evaluation Methods for Fatigue crack Growth Process," J of Korea Society of Machine Tool Engineers, Vol. 8, No. 1, pp. 119-125.