Centrifuge Modeling for Projectile Penetration Studies

    Volume 12, Issue 4 (December 1989)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 7


    Fragaszy, RJ
    Associate professor, Washington State University, Pullman, WA

    Taylor, T
    Assistant professor, Virginia Polytechnic Institute and State University, Blacksburg, VA

    Abstract

    This paper describes the rationale for using centrifuge modeling for projectile penetration studies in granular soils and presents details of a projectile delivery system that has been used to conduct centrifuge penetration tests. Included in the rationale is a dimensional analysis that indicates that self-weight induced stresses in the prototype soil mass should be duplicated in the model. Details of the design and construction of a projectile delivery system using a modified pistol with interchangeable barrels are presented. Comparisons between 1 g and centrifuge tests and the results of modeling-of-models centrifuge tests are also presented. These tests confirm the hypothesis that centrifuge modeling is a valid experimental technique for this phenomenon. It is also shown that 1 g and centrifuge data both fit on a single power curve relating prototype penetration to prototype mass to area ratio of the projectile.


    Paper ID: GTJ10985J

    DOI: 10.1520/GTJ10985J

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    Author
    Title Centrifuge Modeling for Projectile Penetration Studies
    Symposium , 0000-00-00
    Committee D18