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Experimental and Numerical Study on Characterization and Evaluation of Surface Cracks with Wireless Ultrasonic Sensor

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  • Shuo Chen
  • Jing Li
  • Donghui Huang
  • Yuzhi Chen
  • Haitao Zhao

Abstract

Adopting both wireless ultrasonic sensing and numerical simulation techniques, this research investigates the interaction between Rayleigh wave and artificial surface cracks of varying depths. When analyzing experimental ultrasonic data collected by a wireless sensing node, the signals are enhanced through a two-step procedure including signal reconstruction and envelope extraction. The waveforms are interpreted in detail by analyzing wave components through time-of-flight technique. A finite element (FE) model is devised to properly simulate the experimental testing. The simulated waveforms are consistent with experimental results and corroborate the analysis and explanations of experimental waveforms. Based on both experimental and numerical waveform analysis, a relationship between ultrasonic characteristic parameter and crack size is established for the quantitative estimation purpose. The proposed model shows a good agreement with data from both test and literatures.

Suggested Citation

  • Shuo Chen & Jing Li & Donghui Huang & Yuzhi Chen & Haitao Zhao, 2020. "Experimental and Numerical Study on Characterization and Evaluation of Surface Cracks with Wireless Ultrasonic Sensor," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-12, May.
    • Handle: RePEc:hin:jnlmpe:3965980
    DOI: 10.1155/2020/3965980
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