IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v12y2020i18p7405-d411060.html
   My bibliography  Save this article

Acoustic Emission Wave Velocity Attenuation of Concrete and Its Application in Crack Localization

Author

Listed:
  • Dongxue Li

    (College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China)

  • Kang Yang

    (School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Zhaoyi He

    (College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400074, China)

  • Hanlin Zhou

    (School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

  • Jiaqi Li

    (School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China)

Abstract

The accurate localization of an acoustic emission (AE) source is a vital aspect of AE nondestructive testing technology. A model of wave velocity attenuation caused by the extension of transmission distance is established to analyze the attenuation of AE wave velocities in concrete and thus improve the acoustic source localization accuracy from the perspective of modified velocity. In combination with the exhaustive and region localization methods, a region exhaustive localization method is established based on the modified wave velocity. The results indicate that the smaller the water–cement ratio, the larger the reference wave velocity, and the spatially dependent attenuation of wave velocity increase. Moreover, the larger the aggregate particle size, the larger the reference wave velocity, and the greater the attenuation of wave velocity with distance. For a propagation distance of 1000 mm, the AE wave velocity attenuation exceeds 50% compared with the AE velocity. The optimized localization method reduces the number of nodes calculated, thus improving the method’s accuracy when used for localization.

Suggested Citation

  • Dongxue Li & Kang Yang & Zhaoyi He & Hanlin Zhou & Jiaqi Li, 2020. "Acoustic Emission Wave Velocity Attenuation of Concrete and Its Application in Crack Localization," Sustainability, MDPI, vol. 12(18), pages 1-14, September.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:18:p:7405-:d:411060
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/12/18/7405/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/12/18/7405/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:12:y:2020:i:18:p:7405-:d:411060. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.