IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i9p5143-d801266.html
   My bibliography  Save this article

Study on Crack Classification Criterion and Failure Evaluation Index of Red Sandstone Based on Acoustic Emission Parameter Analysis

Author

Listed:
  • Jiashen Li

    (College of Civil Engineering, Guizhou University, Guiyang 550025, China
    Guizhou Provincial Key Laboratory of Rock and Soil Mechanics and Engineering Safety, Guiyang 550025, China)

  • Shuailong Lian

    (College of Civil Engineering, Guizhou University, Guiyang 550025, China
    Guizhou Provincial Key Laboratory of Rock and Soil Mechanics and Engineering Safety, Guiyang 550025, China)

  • Yansen Huang

    (College of Civil Engineering, Guizhou University, Guiyang 550025, China
    Guizhou Provincial Key Laboratory of Rock and Soil Mechanics and Engineering Safety, Guiyang 550025, China)

  • Chaolin Wang

    (College of Civil Engineering, Guizhou University, Guiyang 550025, China
    Guizhou Provincial Key Laboratory of Rock and Soil Mechanics and Engineering Safety, Guiyang 550025, China)

Abstract

The acoustic emission (AE) characteristics of rock during loading can reflect the law of crack propagation and evolution in the rock. In order to study the fracture mode in the process of rock fracture, the AE characteristics and crack types of red sandstone during fracture were investigated by conducting Brazilian indirect tensile tests (BITT), direct shear tests (DST), and uniaxial compression tests (UCT). The evolution law of AE event rate, RA and AF values, and the distribution law of RA–AF data of red sandstone samples in three test types were analyzed. Based on the kernel density estimation (KDE) function and the coupling AE parameters (RA–AF values) in DST and BITT, the relatively objective dividing line for classifying tensile and shear cracks was discussed, and the dividing line was applied to the analysis of fracture source evolution and the failure precursor of red sandstone. The results show that the dividing line for classifying tensile and shear cracks of red sandstone is AF = 93RA + 75. Under uniaxial compression loading, the fracture source of red sandstone is primarily shear source in the initial phase of loading and tensile source in the critical failure phase, and the number is far greater than shear source. K = AF/(93RA + 75) can be defined as the AE parameter index, and its coefficient of variation CV (k) can be used as the failure judgment index of red sandstone. When CV (k) < 1, it can be considered that red sandstone enters the instability failure phase.

Suggested Citation

  • Jiashen Li & Shuailong Lian & Yansen Huang & Chaolin Wang, 2022. "Study on Crack Classification Criterion and Failure Evaluation Index of Red Sandstone Based on Acoustic Emission Parameter Analysis," Sustainability, MDPI, vol. 14(9), pages 1-23, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:9:p:5143-:d:801266
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/9/5143/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/14/9/5143/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Hongxin Xie & Qiangling Yao & Liqiang Yu & Changhao Shan, 2022. "Study on Damage Characteristics of Water-Bearing Coal Samples under Cyclic Loading–Unloading," Sustainability, MDPI, vol. 14(14), pages 1-16, July.
    2. Yang Wu & Qiangling Yao & Baoyang Wu & Hongxin Xie & Liqiang Yu & Yinghu Li & Lujun Wang, 2023. "Strength Damage and Acoustic Emission Characteristics of Water-Bearing Coal Pillar Dam Samples from Shangwan Mine, China," Energies, MDPI, vol. 16(4), pages 1-20, February.
    3. Longjun Dong & Yanlin Zhao & Wenxue Chen, 2022. "Mining Safety and Sustainability—An Overview," Sustainability, MDPI, vol. 14(11), pages 1-6, May.

    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:14:y:2022:i:9:p:5143-:d:801266. 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.