Abstract
A soft or deformable missile changes shape as it penetrates a ductile metal target. The deformation increases the area of the contact surface and thus decreases the areal density of the missile. This paper investigates the effect of relative deformability of missile and plate on the ballistic limit of thin ductile plates which are struck at normal obliquity by soft cylindrical missiles. The effect of various parameters on the extent of global deformation (dishing) and localised failure mechanisms of the target plate are examined as a function of the relative size of plate and missile, flow stress and fracture strain of the plate, missile mass, missile deformability at impact speeds close to the ballistic limit. There also is an analysis of how these deformation and failure characteristics affect the ballistic limit of a target plate.
Published Version
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