Normal perforation of a thin infinite plate by a flat-headed cylindrical projectile
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Analytical formulae for calculating the stress acting on the contact surface between projectile and target and for calculating the moving velocity of this contact surface under impact are both suggested in this paper. These formulae can be thought of as a generalization of the well-known Hopkins and Kolsky's theory in plastic domain. And then, an analytical formula for calculating ballistic limit is also suggested. It is also proved in this paper that the shear stress acting on the cylindrical surface of the plug is distributed uniformly.
KeywordsMathematical Modeling Shear Stress Perforation Contact Surface Industrial Mathematic
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