The successful acceleration in a railgun of an intact, arc-driven metal slug subjected to a peak pressure of about 0.7 GPa is described. The techniques and principles of accelerating metal slugs at very high pressures are reviewed. High pressure operation is required for applications requiring maximum velocity in guns of limited length. The development of metal projectiles is useful because of the availability of a wide range of properties such as strength, density, ductility, hardness and melting point. For example, high tensile strength and ductility make metal projectiles resistant to damage resulting from high-pressure demuzzling in comparison to ceramic projectiles which are characterized by enormous compressive strength, but low tensile strength and ductility. The electrical conductivity of metals necessitates the protection of metal projectiles from erosion by the armature current during acceleration. The problem of designing proective sabots of minimum mass and capable of operating at very high pressure is discussed.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    High pressure acceleration of an arc-driven metal slug in a railgun


    Additional title:

    Hochdruckbeschleunigung eines lichtbogengetriebenen Metallgeschosses in einer schienengebundenen Anlage


    Contributors:


    Publication date :

    1985


    Size :

    4 Seiten, 4 Bilder, 1 Tabelle, 2 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Small Particle Acceleration by Mini-Railgun

    Yoshida, Hiro / Hoshi, Yoshinobu | SAE | 1991


    High energy railgun designs

    Benford, J. | Tema Archive | 1984


    Sensor development for compulsator driven railgun systems

    Penney, C.E. / Hotz, T.J. / Hahne, J.J. | Tema Archive | 2003


    Acceleration of a Pulsating Plasma Slug

    P. M. Kolesnikov | NTIS | 1965


    A rapid fire, compulsator-driven railgun system

    Spann, M.L. | Tema Archive | 1986