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Journal of Inorganic Materials, Volume. 35, Issue 5, 593(2020)

Acoustic Emission Pattern Recognition on Tensile Damage Process of C/SiC Composites Using an Improved Genetic Algorithm

Yongzhen ZHANG1...2, Xiaoyan TONG1, Leijiang YAO1,*, Bin LI1, and Guodong BAI12 |Show fewer author(s)
Author Affiliations
  • 1National Key Laboratory of Science and Technology on UAV, Northwestern Polytechnical University, Xi’an 710072, China
  • 2School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
    Equations (5)
    References (34)
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    Figures & Tables(11)
    Schematic drawing of the tensile specimen
    1. Schematic drawing of the tensile specimen

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    Cluster analysis process based on the improved genetic algorithm
    2. Cluster analysis process based on the improved genetic algorithm

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    Stress-strain curve and energy distribution of acoustic emission signal in tensile process
    3. Stress-strain curve and energy distribution of acoustic emission signal in tensile process

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    Correlation dendrogram of the AE features
    4. Correlation dendrogram of the AE features

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    CH&DB index change curves with K value of C/SiC specimen
    5. CH&DB index change curves with K value of C/SiC specimen

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    Distribution of clustering results of acoustic emission signals
    6. Distribution of clustering results of acoustic emission signals

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    Fracture SEM images of specimen
    7. Fracture SEM images of specimen

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    Accumulated energy with strain and time
    8. Accumulated energy with strain and time

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    Accumulated number of AE events with strain and time
    9. Accumulated number of AE events with strain and time

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    Energy distributions of different damage modes during the tensile test
    10. Energy distributions of different damage modes during the tensile test

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    • Table 1. Numerical values of the clustering centers

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      Table 1. Numerical values of the clustering centers

      ClusterCountEnergy/(mV·ms)Amplitude/mVAveragefrequency/kHzDamage mode
      11822863112Matrix cracking
      25969071136Interface failure
      33034266189Fiber breakage
      4146323777167Interlaminar delamination
      510703162882188Fiber bundle breakage
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    Yongzhen ZHANG, Xiaoyan TONG, Leijiang YAO, Bin LI, Guodong BAI. Acoustic Emission Pattern Recognition on Tensile Damage Process of C/SiC Composites Using an Improved Genetic Algorithm[J]. Journal of Inorganic Materials, 2020, 35(5): 593

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    Paper Information

    Category: RESEARCH PAPER

    Received: May. 9, 2019

    Accepted: --

    Published Online: Mar. 1, 2021

    The Author Email: YAO Leijiang (yaolj@nwpu.edu.cn)

    DOI:10.15541/jim20190213

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology