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基于超声导波技术对钢杆表面缺陷的无损检测研究 被引量:30

NON-DESTRUCTIVE TEST OF A SURFACE DEFECT ON A STEEL BAR BASED ON ULTRASONIC GUIDED WAVE TECHNIQUES
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摘要 研究了圆柱钢杆内导波的传播及其频散特性。通过实验验证了杆中“直达纵波”这一现象并对其进行了分析,同时利用所建立的实验系统,对2320mm长圆柱钢杆表面的人工缺陷进行了检测。结果表明,在特定频率处,选择L(0,1)模态的超声导波检测钢杆中的缺陷是可行的。 The multi-modes and disperse characteristics of guided waves in steel bar are investigated theoretically and experimentally. With experiments, the phenomena of 揕-Wave Precursor?is verified and analyzed. Meanwhile, an artificial surface defect of a 2320mm steel bar is detected. Results show that it is feasible for detecting the defects on a steel bar surface using L(0,1) mode of ultrasonic guided waves for a given special frequency.
出处 《工程力学》 EI CSCD 北大核心 2003年第5期149-154,共6页 Engineering Mechanics
基金 国家自然科学基金(19972003) 北京市自然科学基金重点项目(3011001) 北京市自然科学基金(3992006) 教育部骨干教师资助计划 北京市教委科技合同项目资助项目(99010303)
关键词 超声导波 频散 钢杆 无损检测 ultrasonic guided waves frequency disperse steel bar NDT
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参考文献7

  • 1何存富,吴斌,范晋伟.超声柱面导波技术及其应用研究进展[J].力学进展,2001,31(2):203-214. 被引量:124
  • 2刘镇清,刘骁.超声无损检测的若干新进展[J].无损检测,2000,22(9):403-405. 被引量:71
  • 3P J Duncan and P A Gaydecki. Ultrasonic NDT prototype for the inspection of ducted post stressing tendons in concrete beams[J]. Review of progress in QNDE, 1996, 15: 1799-1806.
  • 4T Yamaski, S Tamai, M Hirao. Optimum excitation signal for long-range inspection of steel wires by longitudinal waves[J]. NDT&E International, 2001, 34(3): 207-212.
  • 5J L Rose. Ultrasonic waves in solid Media[M]. Cambridge University Press, 1999.
  • 6D C Gazis. Three dimensional investigation of the propagation of waves in hollow circular cylinders Ⅰ. Analytical Foundation[J]. J. of the Acoustics Society of America, 1959, 31(5): 568-573.
  • 7M J S Lowe. Matrix techniques for modeling ultrasonic waves in multilayered media, IEEE Trans Ultrasonic[J]. Ferro electronics and Frequency Control, 1995, UFFC-42:525-542.

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