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中文核心期刊

Volume 30 Issue 4
Aug.  2022
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YANG Jing, CUI Lianjun, XU Jian, CHENG Jianchun. An inverse method of elastic constants for unidirectional fiber-reinforced composite plate[J]. ACTA ACUSTICA, 2005, 30(4): 355-361. DOI: 10.15949/j.cnki.0371-0025.2005.04.013
Citation: YANG Jing, CUI Lianjun, XU Jian, CHENG Jianchun. An inverse method of elastic constants for unidirectional fiber-reinforced composite plate[J]. ACTA ACUSTICA, 2005, 30(4): 355-361. DOI: 10.15949/j.cnki.0371-0025.2005.04.013
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An inverse method of elastic constants for unidirectional fiber-reinforced composite plate

  • Institute of Acoustics and State Key Laboratory of Modern Acoustics, Nanjing University Nanjing 210093

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  • PACS: 
    • 43.60  (声学信号处理)
  • Received Date: July 29, 2003
  • Revised Date: February 25, 2004
  • Available Online: August 04, 2022
    Graphical Abstract
    • Abstract
  • An inverse method is presented to determine the elastic constants of an experimental sample, a titanium graphite unidirectional fiber-reinforced composite plate, using wavelet transform and neural networks. Optimal algorithms of wavelet transform and neural networks are given here in order to improve the accuracy of inversion results. Coherent results were shown in both fiber direction and cross fiber direction, proving the feasibility of this method. Neither the group velocity of the Lamb wave modes are needed, as in the conventional method, and no direct least-square fitting of the experimental waveforms is necessary.
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