Chinese Journal of Ship Research, Volume. 17, Issue 6, 244(2022)
Numerical simulation on truncated oval-nosed projectile penetrating into stiffened plate
Figures & Tables(15)
![[in Chinese]](/Images/icon/loading.gif){kind=icon}
Table 1. Material parameters
View tableView in ArticleTable 1. Material parameters
模型参数 921A材料 35CrMnSiNi2A材料 密度 $ \rho /(\mathrm{k}\mathrm{g}\cdot {\mathrm{m}}^{-3}) $ 7800 7850 杨氏模量 $ E/\mathrm{G}\mathrm{P}\mathrm{a} $ 206 210 泊松比 0.28 0.28 $ {T}_{\mathrm{r}}/\mathrm{K} $ 298 － $ {T}_{\mathrm{m}}/\mathrm{K} $ 1763.5 － A/MPa 685 － B/MPa 810.32 － n 0.782 － c 0.048 3 － mt 1.05 －
Table 2. Comparison of numerical and experimental results
View tableView in ArticleTable 2. Comparison of numerical and experimental results
工况 靶板形式 着弹点(姿态)/mm 初始速度 /(m·s−1) 剩余速度 (仿真值)/(m·s−1) 剩余速度 (实验值)/(m·s−1) 偏差e /% 弹孔孔径 /mm 1 均质板 （垂向） 607.0 580.5 584.9 0.75 112 2 加筋板 距垂向筋0，距水平筋31（垂向） 617.7 563.9 574.9 1.9 112
Table 3. Energy absorption of each part of stiffened plate at different initial velocities
View tableView in ArticleTable 3. Energy absorption of each part of stiffened plate at different initial velocities
初始速度/(m·s−1) 剩余速度/(m·s−1) 能量损失/kJ 面板变形能/kJ 板变形能占比/％ 垂向筋变形能/kJ 垂向筋变形能占比/％ 水平筋变形能/kJ 水平筋变形能占比/％ 300.0 204.3 379.1 147.0 38.8 72.4 19.1 25.4 6.7 400.0 329.2 408.9 127.3 31.1 80.0 19.6 23.2 5.7 500.0 438.9 455.8 126.2 27.7 80.2 17.6 21.7 4.8 617.7 563.9 508.9 120.5 23.7 75.9 14.9 17.5 3.4 700.0 648.8 552.0 113.4 20.5 74.6 14.3 15.6 2.8 800.0 751.7 600.7 106.9 17.8 70.5 11.7 13.6 2.2 900.0 850.9 685.0 98.1 14.3 67.3 9.8 12.2 1.8
Table 4. Influence of rectangular stiffeners on projectile trajectory
View tableView in ArticleTable 4. Influence of rectangular stiffeners on projectile trajectory
着弹点偏 移距离/mm 最大偏转 角度/(°) 最大偏转角 飞行距离/mm 侵彻后角 速度/((°)·s−1) 3 m后偏转角度 （预测值）/(°) 2 1.18 367.21 −2 994.84 −13.08 5 2.99 389.71 −3 931.76 −15.69 7 3.84 390.42 −3 791.18 −14.12 10 4.96 391.40 −2 730.89 −7.94 20 6.14 373.33 −6 510.17 −24.57 30 4.93 376.04 −5 808.89 −22.25 40 3.34 355.79 −4 658.91 −18.32 50 2.06 357.70 −1 945.1 −6.76
Table 5. Influence of T-stiffeners on missile flight trajectory
View tableView in ArticleTable 5. Influence of T-stiffeners on missile flight trajectory
着弹点偏移 距离/mm 最大偏转 角度/(°) 最大偏转角 飞行距离/mm 侵彻后角 速度/((°)·s−1) 3 m后偏转角度 (预测值)/(°) 2 2.03 379.71 −3 583.53 −14.73 5 4.90 402.15 −2 859.96 −9.14 7 6.40 403.03 −1 812.54 −2.47 10 8.82 446.88 10.01 8.86 20 9.51 389.18 −7 850.11 −28.47 30 8.10 372.33 −7 066.97 −25.54 40 5.84 375.63 −5 660.71 −20.84 50 3.69 355.83 −4 206.98 −15.91
Tools
Get Citation
Copy Citation Text
Benting ZHU, Guomin WU. Numerical simulation on truncated oval-nosed projectile penetrating into stiffened plate[J]. Chinese Journal of Ship Research, 2022, 17(6): 244
Paper Information
Category: Ship Structure and Fittings
Received: Jul. 19, 2021
Accepted: --
Published Online: Mar. 26, 2025
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20