IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i4p1744-d1063374.html
   My bibliography  Save this article

Shock Initiation and Propagation of Detonation in ANFO

Author

Listed:
  • Vječislav Bohanek

    (Department of Mining Engineering and Geotechnics, Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia)

  • Barbara Štimac Tumara

    (Department of Mining Engineering and Geotechnics, Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia)

  • Chan Hay Yee Serene

    (Emerging Nanoscience Research Institute, Nanyang Technological University, 50 Nanyang Avenue, North Spine, Block N1-B4a-02, Singapore 639798, Singapore)

  • Muhamed Sućeska

    (Department of Mining Engineering and Geotechnics, Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia)

Abstract

The ammonium nitrate (AN) and fuel oil (FO) mixture known as ANFO is a typical representative of non-ideal explosives. In contrast to ideal explosives, the detonation behavior of ANFO exhibits a strong dependence on charge diameter, existence, and properties of confinement, with a large failure diameter and long distance required to establish steady-state detonation. In this study shock initiation and propagation of detonation in ANFO were studied experimentally by determining the detonation velocity at different distances from the initiation point, as well as by numerical modeling using AUTODYN hydrodynamics code and a Wood–Kirkwood detonation model incorporated into EXPLO5 thermochemical code. The run-to-steady-state detonation velocity distance was determined as a function of charge diameter, booster charge mass, and confinement. It was demonstrated that a Lee–Tarver ignition and growth reactive flow model with properly calibrated rate constants was capable of correctly ascertaining experimentally observed shock initiation behavior and propagation of detonation in ANFO, as well as the effects of charge diameter, booster mass, and confinement.

Suggested Citation

  • Vječislav Bohanek & Barbara Štimac Tumara & Chan Hay Yee Serene & Muhamed Sućeska, 2023. "Shock Initiation and Propagation of Detonation in ANFO," Energies, MDPI, vol. 16(4), pages 1-13, February.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1744-:d:1063374
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/4/1744/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/16/4/1744/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Vječislav Bohanek & Muhamed Sućeska & Mario Dobrilović & Philipp Hartlieb, 2022. "Effect of Confinement on Detonation Velocity and Plate Dent Test Results for ANFO Explosive," Energies, MDPI, vol. 15(12), pages 1-9, June.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      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:jeners:v:16:y:2023:i:4:p:1744-:d:1063374. 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.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.