Sep 16, 2011 · Penetration mechanics is a difficult and multi-disciplinary field, extremely dependent on engineering, materials science, solid mechanics. Theoretically, I can try to give you the following basis for "intuition". Firstly, the heavier the projectile, the more "inertial force" it will possess.
Penetration of a projectile into a target has been the interest of countless number of researchers over the years. Backman and Goldsmith documents theories and experiments from the 19th century until 1978 and Ref. is a more recent collection of a large number of experimental data.
Penetration is nearly universally a function of sectional density, or mass divided by the frontal area, of the projectile. In most physically relevant situations, this is a strictly linear function (with one important exception, which will be discussed later). The penetration is also a function of the projectile speed.
Projectile: Full metal projectiles should be made of a material with a very high density, like uranium (19.1 g/cm 3) or lead (11.3 g/cm 3). According to Newton’s approximation, a full metal projectile made of uranium will pierce through roughly 2.5 times its own length of steel armor.
Mechanisms of projectile penetration in Dyneema encapsulated aluminum structures M.R. O’Mastaa, V.S. Deshpandeb,*, H.N.G. Wadleya aDepartment of Material Science & Engineering, college of Engineering and Applied Science, University of Virginia, Charlottesville, VA 22904, USA b Cambridge University Engineering Department, Trumpington Street, Cambridge CB2 1PZ, UK
Strictly speaking, penetration occurs when a projectile enters a target without passing through it and perforation occurs when the projectile completely passes through the target, but the word penetration is commonly used to refer to either.
Results from centrifuge and 1-g model tests of projectile penetration into granular soils are described. Solid spherical projectiles in four calibers were fired into uniform samples of dry sand at
Dec 20, 2016 · SUMMARY: The primary Relative Performance Potential equation which describes penetration in human muscle or 10% Ballistic Gelatin, provides a very good representation of the Terminal Ballistics of a non-deforming cylindrical projectile.
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sliding friction coefficient between projectile and concrete during penetration. M and P’Oare the mass and the initial impact velocity of a projectile, d is the projectile shank diameter and N*is a “nose factor” to describe the characteristics of nose geometry, which will be discussed later.