Dimensional Analysis on the Perforation of Stiffened Plates by Projectiles |
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Authors: | SONG Wei-dong and NING Jian-guo |
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Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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Abstract: | The phenomena attendant to the perforation of truncated oval shape projectile in to multi-layered stiffened plates were investigated. Dimensional analysis was employed to give an empirical formula. Then a membership function was introduced to modify the empirical formula. The effects of initial velocities, base plate thicknesses, height and width of stiffener on residual velocities were explored. The predictions of the empirical formula are in reasonably good agreement with those of experiment and numerical results. All these results indicate that the empirical formula is capable of predicting the residual velocity of the projectile penetrating the multi-layered stiffened plates. |
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Keywords: | stiffened plates penetration/perforation impact membership function |
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