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A study on quantitative nondestructive evaluation of small closed cracks using ultrasonics 閉じた微小き裂の超音波による定量的非破壊評価に関する研究

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著者

    • Shaikh Reaz Ahmed シェイク リアズ アーメド

書誌事項

タイトル

A study on quantitative nondestructive evaluation of small closed cracks using ultrasonics

タイトル別名

閉じた微小き裂の超音波による定量的非破壊評価に関する研究

著者名

Shaikh Reaz Ahmed

著者別名

シェイク リアズ アーメド

学位授与大学

東北大学

取得学位

博士 (工学)

学位授与番号

甲第6842号

学位授与年月日

1999-03-25

注記・抄録

博士論文

目次

  1. CONTENTS / p1 (0004.jp2)
  2. CHAPTER1 INTRODUCTION / p1 (0007.jp2)
  3. 1.1 General Background / p1 (0007.jp2)
  4. 1.2 Usual Nondestructive Testing Techniques / p4 (0010.jp2)
  5. 1.3 Brief Historical Review of Ultrasonic Technology / p8 (0014.jp2)
  6. 1.4 Literature Survey on Ultrasonic NDE of Cracks / p10 (0016.jp2)
  7. 1.5 Proposed Research Work / p19 (0025.jp2)
  8. 1.6 Summary / p23 (0029.jp2)
  9. References / p24 (0030.jp2)
  10. CHAPTER2 GENERAL DEFINITIONS AND BASIC PROPERTIES / p27 (0033.jp2)
  11. 2.1 Introduction / p27 (0033.jp2)
  12. 2.2 Ultrasonic Waves / p28 (0034.jp2)
  13. 2.3 Wave Characteristics / p29 (0035.jp2)
  14. 2.4 Reflection and Transmission of Wave at a Plane Boundary / p30 (0036.jp2)
  15. 2.5 Defraction of Ultrasonic Waves and Sound Field / p34 (0040.jp2)
  16. 2.6 Attenuation of Ultrasonic Waves / p36 (0042.jp2)
  17. 2.7 Ultrasonic Transducers / p37 (0043.jp2)
  18. 2.8 Basic Crack Evaluation Configurations / p39 (0045.jp2)
  19. 2.9 Strategy for Structural Lifetime Prediction / p42 (0048.jp2)
  20. 2.10 Summary / p44 (0050.jp2)
  21. References / p45 (0051.jp2)
  22. CHAPTER3 EXPERIMENTAL / p46 (0052.jp2)
  23. 3.1 Introduction / p46 (0052.jp2)
  24. 3.2 Specimen Preparation / p47 (0053.jp2)
  25. 3.3 Experimental Set-up / p53 (0059.jp2)
  26. 3.4 Measurement Procedure / p56 (0062.jp2)
  27. 3.5 Presentation of Experimental Data / p61 (0067.jp2)
  28. 3.6 Summary / p63 (0069.jp2)
  29. References / p64 (0070.jp2)
  30. CHAPTER4 THE NEW EVALUATION APPROACH / p65 (0071.jp2)
  31. 4.1 Introduction / p65 (0071.jp2)
  32. 4.2 Investigation of the Effect of Beam Incidence on the Response / p65 (0071.jp2)
  33. 4.3 Analysis of Echo Height and Comparison / p73 (0079.jp2)
  34. 4.4 Optimum Angle of Evaluation and Enhancement of Sensitivity / p84 (0090.jp2)
  35. 4.5 Evaluation of Closed Cracks and Discussions / p88 (0094.jp2)
  36. 4.6 Conclusions / p97 (0103.jp2)
  37. References / p97 (0103.jp2)
  38. CHAPTER5 THEORETICAL MODELING FOR QUANTITATIVE SIZING / p98 (0104.jp2)
  39. 5.1 Introduction / p98 (0104.jp2)
  40. 5.2 Method of Analysis of Closed Cracks / p98 (0104.jp2)
  41. 5.3 Analysis of the Forward Problem / p104 (0110.jp2)
  42. 5.4 Analysis of the Inverse Problem / p111 (0117.jp2)
  43. 5.5 Evaluation Results of Normal Incidence Method / p114 (0120.jp2)
  44. 5.6 Evaluation Results of Optimum Incidence Method and Discussions / p118 (0124.jp2)
  45. 5.7 Analysis of Characteristic Response Curves / p133 (0139.jp2)
  46. 5.8 Conclusions / p136 (0142.jp2)
  47. References / p136 (0142.jp2)
  48. CHAPTER6 GENERALIZATION OF THE EVALUATION METHOD / p137 (0143.jp2)
  49. 6.1 Introduction / p137 (0143.jp2)
  50. 6.2 Investigation of the Effect of Specimen Thickness on the Response / p137 (0143.jp2)
  51. 6.3 Modification of the Calibration Equation for the Open Cracks / p145 (0151.jp2)
  52. 6.4 Investigation of the Effect of Material Structure on the Response / p147 (0153.jp2)
  53. 6.5 Establishment of Calibration Equation for Carbon Steel Plates / p153 (0159.jp2)
  54. 6.6 Evaluation Results and Discussions / p163 (0169.jp2)
  55. 6.7 Conclusions / p176 (0182.jp2)
  56. CHAPTER7 EVALUATION OF SUB-WAVELENGTH CRACKS / p177 (0183.jp2)
  57. 7.1 Introduction / p177 (0183.jp2)
  58. 7.2 Investigation of Ultrasonic Response Against Sub-Wavelength Cracks / p177 (0183.jp2)
  59. 7.3 Comparison of Sensitivity / p185 (0191.jp2)
  60. 7.4 Effect of Crack Size and Specimen Thickness on the Optimum Angle of Evaluation / p188 (0194.jp2)
  61. 7.5 Extension of the Calibration Equation for Sub-Wavelength Cracks / p190 (0196.jp2)
  62. 7.6 Evaluation of Closed Cracks and Sensitivity Limit / p193 (0199.jp2)
  63. 7.7 Conclusions / p210 (0216.jp2)
  64. References / p210 (0216.jp2)
  65. CHAPTER8 CONCLUSIONS / p211 (0217.jp2)
  66. ACKNOWLEDGEMENTS / p215 (0221.jp2)
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各種コード

  • NII論文ID(NAID)
    500000170861
  • NII著者ID(NRID)
    • 8000000171135
  • DOI(NDL)
  • NDL書誌ID
    • 000000335175
  • データ提供元
    • NDL-OPAC
    • NDLデジタルコレクション
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