A Study on Evaluation of Defects of Pressure Vessel by Using ESPI and FEM

ESPI와 FEM을 이용한 압력용기 결함 측정에 관한 연구

  • 강영준 (전북대학교 공과대학 기계항공시스템공학부) ;
  • 이정식 (전북대학교 공과대학 기계설계 대학원) ;
  • 백성훈 (한국원자력연구소 양자광학기술개발부) ;
  • 박승규 (한국원자력연구소 양자광학기술개발부) ;
  • 이동환 (전북대학교 공과대학 기계항공시스템공학부)
  • Published : 2007.12.01

Abstract

Internal defects are mainly caused by a corrosive action and degradation in the pipe used in a nuclear power plant or factory. The ESPI method have the many advantages when compared with conventional method. The advantage are the area measurement ability at one time and non-contact measurement ability in the real-time. In this paper, we studied on the measurement of a internal defect by using out of plane ESPI technique. Here, we compared the experimental results using out of plane ESPI with the FEM results.

Keywords

References

  1. Lekberg, O. J. and Maimo, J. T., 'Detection of Defects in Composite Material by TV Holography,' NDT International, Vol. 21, No. 4, pp. 223-228, 1988 https://doi.org/10.1016/0308-9126(88)90334-3
  2. Wykes, C., 'Use of Electronic Speckle Pattern Interferometry in the Measurement of Static and Dynamic Surface Displacement,' Optical Engineering, Vol. 21, No. 3, pp. 400-406, 1982
  3. Rastogi, P. K., 'Holographic Interferometry,' Springer Series in Optical Science, pp. 27-31, 1994
  4. Kang, Y. J., Chae, H. C. and Kang, H. S., 'A Study on Measurement of Internal Defects of Pressure Vessel by Digital Shearography and Finite Element Method,' Korean Society of Machine Tool Engineers, Vol. 10, No. 2, pp. 29-37, 2001
  5. ANSYS Introduction Training Manual, 'Introduction to ANSYS,' TAE SUNG SOFTWARE&ENGINEERING, INC., Ver 7.0., 2002
  6. Kang, Y. J., Bae, J. K., Ryu, W. J. and Park, N. K., 'A Study on Measurement of Crack Length by using Laser Speckle Interferometry,' Journal of the Korean Society for Precision Engineering, Vol. 18, No. 5, pp. 34-41, 2001