Enhanced Penetration through Two-Stage Double-Blunt Projectile

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This research investigates the penetration characteristics of single-nose blunt and double-nose blunt-blunt projectiles impacting thin aluminum plates using numerical analysis in ABAQUS. Finite element simulations model a 29.7g projectile impacting a 0.82mm thick aluminum plate at velocities ranging from 40 to 100 m/s. Results reveal distinct failure mechanisms, deformation profiles, and energy absorption behaviors influenced by projectile geometry. The blunt-blunt projectile exhibits a lower ballistic limit and two-plug failure, while the blunt projectile requires higher velocity for penetration, resulting in a single plug. The blunt-blunt projectile penetrates more efficiently, while the blunt projectile dissipates more energy at lower velocities. Analysis of residual velocity, impact duration, and deformation highlights the importance of projectile nose geometry in penetration performance. These insights contribute to the advancement of impact-resistant materials and structural designs for enhanced ballistic protection.

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147-154

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December 2025

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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