New Approaches to Ultrasonic Classification and Sizing of Flaws in Weldments

초음파시험에 의한 용접결함의 종류판별과 크기산정의 새로운 기법

  • 송성진 (조선대학교, 기계설계공학과)
  • Published : 1995.12.01

Abstract

Flaw classification(determination of the flaw type) and flaw sizing (prediction of the flaw shape, orientation and sizing parameters) are very important issues in ultrasonic nondestructive evaluation of weldments. In this work, new techniques for both classification and sizing of flaws in weldments are described together with extensive review of previous works on both topics. In the area of flaw classification, a methodology is developed which can solve classification problems using probabilistic neural networks, and in the area of flaw sizing, a time-of-flight equivalent(TOFE) sizing method is presented.

References

  1. Journal of Acoustical Society of America v.35 Determination of the geometry of hidden defects by ultrasonic pulse analysis testing O.R.Gericke
  2. Research Techniques in Nondestructive Testing Ultrasonic spectroscopy O.R.Gericke;R.S.Sharpe(ed.)
  3. Ultrasonic Spectral Analysis for Nondestructive Evaluation D.W.Fitting;L.Adler
  4. Proc. ARPA/AFML Review of Progress in Quantitative NDE;Air Force Materials Laboratory Technical Report AFML-TR-78-205 Inversion of Physically Recorded Ultrasonic Waveforms Using Adaptive Learning Network Models Trained on Theoretical Data M.F.Whalen;A.N.Mucciardi;D.O.Thompson(ed.)
  5. Review of Progress in Quantitative Nondestructive Evaluation v.10A Classification of ultrasonic defect signatures using an artificial neural network L.M.Brown;R.DeNale;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  6. Transactions of ASME/Journal of Applied Mechanics v.50 Quantitative ultrasonic nondestructive evaluation methods R.B.Thompson
  7. Research in Nondestructive Evaluation v.1 The flat-bottom hole : an ultrasonic scattering model L.W.Schmerr;A.Sedov
  8. Research Techniques in Nondestructive Testing v.2 Sizing crack-like defects by ultrasonic means M.G.Silk;R.S.Sharpe(ed.)
  9. Engineering Applications of Ultrasonic Time-of-Flight Diffraction J.P.Charlesworth;J.A.G.Temple
  10. Journal of Acoustical Society of America v.92 no.1 New approaches to model-based ultrasonic flaw sizing C.P.Chious;L.W.Schmerr
  11. Journal of Nondestructive Evaluation v.11 no.2 Ultrasonic flaw classification in weldments using probabilistic neural networks S.J.Song;L.W.Schmerr
  12. Research in Nondestructive Evaluation v.4 An ultrasonic time-of-flight equivalent flaw sizing method S.J.Song;L.W.Schmerr
  13. Ph. D. Dissertation, Iowa State University Ultrasonic flaw classification : an approach using modelling, signal processing, and adaptive learning L.S.Koo
  14. Journal of Nondestructive Evaluation v.1 Defect identification and sizing by the ultrasonic satellite-pulse technique G.J.Gruber
  15. Materials Evaluation v.42 Characterization of flaws in piping welds using satellite pulses G.J.Gruber;G.J.Hendrix;W.R.Schick
  16. IEEE Transactions of Ultrasonics, Ferroelectrics, and Frequency Control v.UFFC-34 Reliability of reconstruction of arbitrarily oriented flaws using multiview transducers D.K.Hsu;D.O.Thompson;S.J.Wormley
  17. Neural Networks v.3 Probabilistic neural networks D.F.Specht
  18. Research in Nondestructive Evaluation v.3 DGS Diagrams and Frequency Response Curves for a flat-bottom hole : A model-based approach S.J.Song;L.W.Schmerr;A.Sedov
  19. Interdisciplinary Program for Quantitative Flaw Definition Special Report Third Year Effort Application of adaptive learning networks to NDE methods A.N.Mucciardi;R.Shankar;M.F.Whalen
  20. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control v.37 Two-dimensional ultrasonic tomography in nondestructive evaluation by using area functions L.S.Koo;H.R.Shafiee;D.K.Hsu;S.J.Wormley;D.O.Thompson
  21. An Introduction to Acoustical Holography B.P.Hildebrand;B.B.Brenden
  22. Parallel Distributed Processing v.1 Learning internal representations by error propagation D.E.Rumelhart;G.E.Hinton;R.J.Williams;D.E.Rumelhart(ed.);J.L.McClelland(ed.);the PDP Research Group(ed.)
  23. Research Techniques in Nondestructive Testing v.VI Ultrasonic focusing techniques S.O.Harrold;R.S.Sharpe(ed.)
  24. Materials Evaluation v.42 Element of a feature-based ultrasonic inspection system J.L.Rose
  25. Ultrasonics v.29 A quasi-pulse-echo technique for ultrasonic flaw classification C.P.Chiou;L.W.Schmerr
  26. IEEE Transactions on Sonics and Ultrasonics v.SU-31 Fundamentals of digital ultrasonic imaging C.F.Schueler;H.Lee;G.Wade
  27. Journal of Applied Physics v.55 Reconstruction of inclusions in solids using ultrasonic Born inversion D.K.Hsu;J.H.Rose;D.O.Thompson
  28. IEEE Proceedings v.134 Investigation of the 1-D inverse Born technique C.A.Chaloner;L.J.Bond
  29. Soviet Journal of Nondestructive Testing v.21 Diffracted waves and their application in ultrasonic nondestructive testing Ⅱ. Practical application of diffracted waves A.K.Volpinkin
  30. The Reliability of Nondestructive Inspection M.G.Silk;A.M.Stoneham;J.A.G.Temple
  31. Materials Evaluation v.40 Characterization of flaw location, shape, and dimensions with the ALOK system B.Grohs;O.A.Barbian;W.Kappes;H.Paul;R.Licht;F.W.Hoh
  32. Review of Progress in Quantitative Nondestructive Evaluation v.11 Errors in determining the flaw centroid by using area functions J.Yang;L.J.Bond;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  33. Ultrasonic Testing of Materials(4th ed.) J.Krautkramer;H.Krautkramer
  34. Review of Progress in Quantitative Nondestructive Evaluation v.4A Status of implementation of the inverse Born sizing algorithm R.B.Thompson;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  35. Microcomputer Application v.9 Design and implementation of an expert system for flaw classification S.M.Nugen;L.W.Schmerr;K.M.Christensen;B.K.Lovewell
  36. Review of Progress in Quantitative Nondestructive Evaluation v.8A Ultrasonic Flaw Classification-An Expert System Approach L.W.Schmerr;K.E.Christensen;S.M.Nugen;L.S.Koo;C.P.Chiou;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  37. IEEE ASSP Magazine no.April An introduction to computing with neural nets R.P.Lippmann
  38. Materials Evaluation v.48 Eddy current defect characterization using neural network L.Udpa;S.S.Udpa
  39. Review of Progress in Quantitative Nondestructive Evaluation v.7B Objective characterization of welding defects using physical based pattern recognition techniques S.F.Burch;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  40. Materials Evaluation v.49 Neural network inversion of uniform-field eddy current data J.M.Mann;L.W.Schmerr;J.C.Moulder
  41. Journal of Acoustical Society of America v.92 Ultrasonic scattering of a flat-bottom hole in immersion testing : an analytic model A.Sedov;L.W.Schmerr;S.J.Song
  42. Soviet Journal of Nondestructive Testing v.11 New informative index for the nature of flaws in ultrasonic inspection V.G.Shcherbinskii;V.E.Belyi
  43. Proceedings of IEEE International Conference on Neural Networks v.1 Probabilistic neural networks for classification, mapping, of associative memory D.F.Specht
  44. IEEE Transactions on Neural Networks v.1 no.1 Probabilistic neural networks and polynomial adaline as complementary techniques for classification D.F.Specht
  45. Proceedings of the IEEE International Joint Conference on Neural Networks v.1 Enhancements to probabilistic neural networks D.F.Specht
  46. Journal of the Korean Society for Nondestructive Testing v.15 no.2 An ultrasonic pattern recognition approach to welding defect classification S.J.Song
  47. Materials Evaluation v.42 no.4 Flaw classification in welded plates employing a multidimensional feature-based decision process J.L.Rose;J.Nestleroth;L.Niklas;O.Ganglbauer;J.Ausserwoeger;F.Wallner
  48. Review of Progress in Quantitative Nondestructive Evaluation v.7A Recent advances in Born Inversion(weak scatters) L.J.Bond;C.A.Chaloner;S.J.Wormley;S.P.Neal;J.H.Rose;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  49. Research in Nondestructive Evaluation v.1 A unified constrained inversion model for ultrasonic flaw sizing L.W.Schmerr;A.Sedov;C.P.Chiou
  50. Handbook on the Ultrasonic Examination of Welds International Institute of Welding
  51. Proceedings of the IEEE v.73 Ultrasonics in nondestructive evaluation R.D.Thompson;D.O.Thompson
  52. The Evaluation of Ultrasonic Signals International Institute of Welding
  53. Research Techniques in Nondestructive Testing v.VI Ultrasonic synthetic-aperture focusing techniques J.Seydel;R.S.Sharpe(ed.)
  54. Wave Motion v.8 The time domain elastodynamic Kirchhoff approximation for cracks : the inverse problem A.Sedov;L.W.Schmerr
  55. British Journal of Applied Physics v.10 Determination of the size of defects by the ultrasonic impulse echo methods J.Krautkramer
  56. Adaptive Pattern Recognition and Neural Networks Y.H.Pao
  57. Materials Evaluation v.42 A methodology for reflector classification analysis in complex geometric welded structures J.L.Rose;Y.H.Jeong;C.T.Cooper
  58. NDT International v.19 A physical approach to the automated ultrasonic characterization of buried weld defects in ferritic steel S.F.Burch;N.K.Bealing
  59. Review of Progress in Quantitative Nondestructive Evaluation v.10A Classification of ultrasonic signals via neural networks D.Berry;L.Udpa;S.S.Udpa;D.O.Thompson(ed.);D.E.Chimenti(ed.)
  60. British Journal of NDT v.26 The use of diffraction based time-of-flight measurements to locate and size defects M.G.Silk