 | | 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: | | 13427 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8178
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| In English (Mech. Solids): | | 5249 |
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| << Previous article | Volume 60, Issue 6 / 2025 | Next article >> |
| Xinyu Sun, Yiding Wu, Wencheng Lu, and Guangfa Gao, "Simulation Study on Penetration of Non-Circular Projectiles," Mech. Solids. 60 (6), 4700-4716 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
6 |
Pages |
4700-4716 |
| DOI |
10.1134/S0025654425602629 |
| Title |
Simulation Study on Penetration of Non-Circular Projectiles |
| Author(s) |
Xinyu Sun (Nanjing University of Science and Technology, Nanjing, 210094 China, sunxinyu@njust.edu.cn)
Yiding Wu (Nanjing University of Science and Technology, Nanjing, 210094 China, yidingwu@njust.edu.cn)
Wencheng Lu (Nanjing University of Science and Technology, Nanjing, 210094 China, luwencheng@njust.edu.cn)
Guangfa Gao (Nanjing University of Science and Technology, Nanjing, 210094 China, gfgao@ustc.edu.cn) |
| Abstract |
This study investigates penetration mechanisms of non-circular long-rod projectiles (triangular/cruciform cross-sections) under a low-strength projectile (A3 steel) and high-strength target (45 steel) configuration. Simulations at 1000–1600 m/s reveal velocity-dependent penetration gains: triangular sections achieved gains of 1.11% at 1000 m/s and 1.45% at 1300 m/s, while cruciform sections gained 2.83 and 3.52% at 1600 m/s. Material parameters exert distinct effects: yield strength predominantly governs circular-section performance, whereas shear modulus significantly influences non-circular sections. Optimizing these parameters amplifies shape effects—e.g., higher yield strength with lower shear modulus enhances triangular-section efficiency. Mechanistically, triangular sections benefit from structural self-sharpening and non-uniform debris flow at edges, favoring lower velocities. Cruciform sections form internal debris pathways, reducing friction to improve high-velocity penetration. A novel star-shaped cross-section, synergizing both mechanisms, outperformed conventional shapes across all velocities (e.g., 37.62 mm vs. 35.83 mm / 37.47 mm at 1600 m/s). This work advances penetrator design through velocity- and material-optimized cross-sections. |
| Keywords |
non-circular cross-sectional rod projectile, Semi-infinite target, Penetration mechanism |
| Received |
22 May 2025 | Revised |
05 August 2025 | Accepted |
06 August 2025 |
| Link to Fulltext |
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