 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
|
| In English (Mech. Solids): | | 5360 |
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| Yufeng Hao, Haonan Mai, and Shuai Chen, "Analysis of the Penetration Process of Projectiles into Pre-drilled Reinforced Concrete Targets Based on an Improved Cavity Expansion Theory," Mech. Solids. 60 (7), 6181-6199 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
6181-6199 |
| DOI |
10.1134/S0025654425604902 |
| Title |
Analysis of the Penetration Process of Projectiles into Pre-drilled Reinforced Concrete Targets Based on an Improved Cavity Expansion Theory |
| Author(s) |
Yufeng Hao (Nanjing University of Science and Technology, Department of Mechanical Engineering, Nanjing Jiangsu, 210094 China, hyfeng2022@163.com)
Haonan Mai (Nanjing University of Science and Technology, Department of Mechanical Engineering, Nanjing Jiangsu, 210094 China)
Shuai Chen (Nanjing University of Science and Technology, Department of Mechanical Engineering, Nanjing Jiangsu, 210094 China) |
| Abstract |
This study investigates the penetration process of a tandem warhead with a follow-through
projectile into a pre-drilled reinforced-concrete (RC) target. Based on cavity-expansion theory and
the resistance of reinforcing bars, an analytical model for dynamic resistance during penetration was
established by introducing target-plate damage coefficients and projectile–target dynamic-friction
coefficients. An algorithmic workflow covering three typical projectile–target intersection positions
was proposed. This model was validated through experimental and numerical simulations, analyzing
the penetration patterns of follow-through projectiles into pre-drilled target plates. Findings indicate:
the dynamic-resistance analytical model exhibits good agreement with experimental data and numerical simulations, demonstrating reasonable accuracy; follow-through projectiles exhibit distinct overload characteristics during initial penetration, followed by a brief overload peak upon engaging the
reinforcement until its failure stage; projectiles exhibit negligible penetration capability against small-aperture target plates, with penetration depth significantly increasing with projectile velocity or relative aperture size; when both the initial velocity of the follow-through projectile and the target-plate
aperture are large, the residual velocity and penetration-time distribution are relatively small. These
findings provide theoretical reference for follow-through projectile design and fuze delay-detonation strategies. |
| Keywords |
follow-through projectile, pre-drilled reinforced concrete, residual velocity, duration of penetration, cavity expansion theory |
| Received |
07 September 2025 | Revised |
20 October 2025 | Accepted |
23 October 2025 |
| Link to Fulltext |
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