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Penetration efficiency as a function of target obliquity and projectile pitch

: Anderson, Charles E.; Behner, Thilo; Hohler, Volker


Journal of applied mechanics 80 (2013), Nr.3, Art. 031801, 11 S.
ISSN: 0021-8936
ISSN: 1528-9036
International Symposium on Ballistics <27, 2013, Freiburg>
Zeitschriftenaufsatz, Konferenzbeitrag
Fraunhofer EMI ()

The influence of pitch (vertical yaw) angle on the penetration reduction of rod projectiles into oblique targets has been investigated for tungsten sinter alloy rods with a blunt nose and L/D = 20. Semi-infinite RHA targets with an obliquity of 30 deg, 45 deg, and 60 deg were impacted at 1650 m/s. The pitch angles were varied between ±90 deg. The strong asymmetric behavior of the target crater is dependent on whether the pitch is positive or negative relative to the obliquity of the target. The experiments provide a good overview of the penetration characteristics of long rods for the whole pitch angle range. The penetration data are described by empirical relations that show good agreement with the experiments.