Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

Nondestructive Evaluation for Artificial Degraded Stainless 316 Steel by Time-Frequency Analysis Method

  • Nam, Ki-Woo (Division of Materials Science and Engineering, Pukyong National University) ;
  • Kim, Young-Un (Korea Institute of maritime and Fisheries Technology)
  • Published : 2001.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this studies, joint time-frequency analysis techniques were applied to analyze ultrasonic signals in the degraded austenitic 316 stainless steels, to study the evolution of damage in these materials. It was demonstrated that the nonstationary characteristics of ultrasonic signals could be analyzed effectively by these methods. The WVD was more effective for analyzing the attenuation and frequency characteristics of the degraded materials through ultrasonic. It is indicated that the joint time-frequency analysis, WVD method, should also be useful in evaluating various damages and defects in structural members.

Keywords

References

  1. IEEE Transaction on Ultrasonics, Ferroelectrics, and Frequency Control v.44 no.1 Signal Detection and Noise Suppression using a Wavelet Transform Signal Processor : Application to Ultrasonic Flaw Detection Abbate, A.;Schroeder, S. C.;Koay, J.;Das, P.
  2. Journal of Ocean Engineering and Technology Characteristics of Signals Emanating from Fatigue Crack Propagation and Penetration of a Surface Crack in a 6061 Aluminum Plate Ahn, S. H.;Nam, K. W.
  3. IEEE Trans. Acoustics, Speech, Signal Processing v.36 no.9 Note on the Use of the Wigner Distributions for Time-Frequency Signal Analysis Boashash, B.
  4. Review of Progress in NDE v.4B Effect of Microstructure and prior austenite grain size on acoustic velocity and attenuation in steel Grayali, n.;Shyne, J. C.
  5. Review of Progress in Quantitative Nondestructive Evaluation v.15 Singular Value Decomposition of Wigner Distribution for Time-Frequency Representation of Ultrsonic Echoes Jin, X. M.;Malik, M. A.;Saniie, J.
  6. J. Kor. Inst. Met. & Mate. v.38 no.11 Fatigue Characteristics of High Strength Fire Resistance Steel for Frame Structure and Time-frequency Analysis of its Acoustic Emission Signals Kim, H. S.;Kang, C. Y.;Nam, K. W.
  7. Review of Progress in Quantitative Nondestructive Evaluation v.14 Ultrasonic Evaluation of Thermal Degradation in Adhesive Bonds Lih, S. S.;Mal, A.;Bar-Cohen, Y.
  8. Review of Progress in Quantitative Nondestructive Evaluation v.15 Joint Time-Frequency Processing of Ultrasonic Signals Malik, M. A.;Jin, X. M.;Saniie, J.
  9. JSNT v.40 Wiger Distribution Function and its Application for the Ultrasonic Nondestructive Evaluation Musha, T.;Kawamura, J.
  10. Fatigue Fract. Engng. Mater. Struct. v.22 Acoustic Emission from Surface Fatigue Cracks in SS41 Steel Nam, K. W.
  11. Journal of Ocean Engineering and Technology v.13 no.3 Life Prediction by Retardation Behavior of Fatigue Crack and its Nondestructive Evaluation Nam, K. W.;Kim, S. J.
  12. Journal of Ocean Engineering and Technology v.11 no.3 Acoustic Emission during Fatigue Crack Penetration Behavior of Surface Cracked Plate Nam, K. W.;Kim, S. J.;Lee, K. C.;Oh, J. H.;Oh, S. K.;Lee, J. S.
  13. ASME International Mechanical Engineering Congress & Exposition Application of Joint Time Frequency Analysis Methods of Nondestructive Evaluation Nam, K W.;Lee, K. C.;Oh, J. H.
  14. Journal of Materials Research v.16 no.6 Characteristics of Elastic Waves Generated by Crack Initiation in Aluminum Alloys under Fatigue Loading Nam, K. W.;Mal, A.
  15. Journal of Ocean Engineering and Technology Classification of Acoustic Emission Signals from fatigue crack propagation in 2024 and 5052 Aluminum Alloys Nam, K. W.;Moon, C. K.
  16. Review of Progress in Quantitative Nondestructive Evaluation v.16 Automated Source Identification using Modal Acoustic Emission Ziola, S.;Searle, I.