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作者:

Zheng, Gang-Feng (Zheng, Gang-Feng.) | Wu, Bin (Wu, Bin.) | He, Cun-Fu (He, Cun-Fu.) (学者:何存富)

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EI Scopus

摘要:

In this article, three dimensional Kirchhoff inverse scattering method is modified to convenient form for two cylindrical specimens that include three dimensional defects. Two inhomogeneous cylinders with flaw models are prepared and ultrasonic measurements are carried out. The measurement area in the modified methods is restricted in the plane perpendicular to the axis of cylindrical specimen. That's to say that the method is modified to convenient form to use measured waveforms in the x1-x2 plane. The measured wave data are fed into the inversion method and cross-sectional images are obtained. From the experimental research for two kinds of defects, it is verified that the Kirchhoff inversion works well for both volumetric defects and surface defects. © 2009 IEEE.

关键词:

Acoustic waves Bars (metal) Crystallography Cylinders (shapes) Inverse problems Nondestructive examination Piezoelectric devices Piezoelectricity Scattering Surface defects Ultrasonic testing

作者机构:

  • [ 1 ] [Zheng, Gang-Feng]Department of Materials Science and Engineering, Anhui University of Science and Technology, 168 Shungeng Road, Huainan, Anhui 232001, China
  • [ 2 ] [Wu, Bin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, 100 Pinleyuan Road, Beijing 100022, China
  • [ 3 ] [He, Cun-Fu]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, 100 Pinleyuan Road, Beijing 100022, China

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年份: 2009

页码: 170-173

语种: 英文

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