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陶瓷材料抗长杆弹侵彻阻抗研究

Keywords: 侵彻阻抗,Tate模型,空腔膨胀理论,陶瓷

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Abstract:

为探讨长杆弹侵彻陶瓷靶中的阻抗与侵彻速度关系,基于长杆弹侵彻半无限靶的修正流体动力学模型(Tate模型)和空腔膨胀理论流体动力学模型,结合文献中已知试验数据,求解了氧化铝和氮化铝陶瓷的Tate模型侵彻阻抗Rt和空腔膨胀模型侵彻阻抗Rc.结果表明在1500~3500m/s速度范围内,氧化铝陶瓷的Rt随速度的增加而缓慢降低,氮化铝的Rt基本为恒值;在3600~4500m/s速度范围内,氮化铝陶瓷的Rt随速度的增加反而增加,可能是侵彻速率超过裂纹传播最终速率所导致;两种陶瓷的Rc都随速度的增加而减小,接近流体动力学极限时Rc值非常小,表明该模型不适合于超高速侵彻.采用平均阻抗计算的侵彻深度结果表明平均阻抗可以用于侵彻深度计算.

References

[1]  Rosenberg Z, Tsaliah J. Applying Tates model for the interaction of long rod projectiles with ceramic targets[J]. Int J Impact Engng, 1990,9(2):247-251.
[2]  Sternberg J. Material properties determining the resistance if ceramic to high velocity penetration[J]. J Appl Phys, 1989,65(9):3417-3424.
[3]  Anderson C E, Morris B L. The ballistic performance of confined Al2O3 ceramic tiles[J]. Int J Impact Engng, 1992,12(2):167-187.
[4]  Kozhushko A A, Rykova I I, Sinani A B. Resistance of ceramics to penetration at impact velocities above 5km/s[J]. Journal De Physique, 1991,1(3):117-122.
[5]  Hauver G E, Netherwood P H, Benck R F. Variation of target resistance during long-rod penetration into ceramics[C]//Proceedings of 13th International Symposium on Ballistics. Stockhotm, Sweden: [s.n.], 1992:257-264.
[6]  李金柱,张连生,黄风雷.EFP侵彻陶瓷/金属复合靶实验运动网格法模拟[J].北京理工大学学报,2012,32(10):1004-1008. Li Jinzhu, Zhang Liansheng, Huang Fenglei. Simulation of EFP penetrating into ceramic/steel composite target using moving mesh method[J]. Transactions of Beijing Institute of Technology, 2012,32(10):1004-1008. (in Chinese)
[7]  张连生,黄风雷.抗弹陶瓷材料抗弹性能的理论表征[J].北京理工大学学报,2005,25(7):651-654.Zhang Liansheng,Huang Fenglei. Theoretical characterization of ballistic performance of armor ceramics[J]. Transactions of Beijing Institute of Technology,2005,25(7):651-654. (in Chinese)
[8]  Satapathy S, Bless S. Calculation of penetration resistance of brittle materials using spherical cavity expansion analysis[J]. Mechanics of Materials, 1996,23:323-330.
[9]  Alekseevskii V P. Penetration of a rod into a target at high velocity combustion[J]. Explosion and Shock Waves, 1966,2:63-66.
[10]  Tate A. A theory for the deceleration of long rods after impacts[J]. J Mech Phys Solids, 1967,15:387-399.
[11]  Walters W P, Segletes S B. An exact solution of the long rod penetration equations[J]. Int J Impact Engng, 1991,11(2):225-231.
[12]  赵国志.穿甲工程力学[M].北京:兵器工业出版社,1992. Zhao Guozhi. Penetration engineering mechanics[M]. Beijing: Arms Industry Publishment, 1992. (in Chinese)
[13]  Subramanian R,Bless S J. Penetration of semi-infinite AD995 Al2O3 targets by tungsten long rods penetrators from 1.5 to 3.5km/s[J]. Int J Impact Engng, 1995,17:807-816.
[14]  Orphal D L, Franzen R R, Piekutowski A J, et al. Penetration of confined aluminum nitride targets by tungsten long rods at 1.5~4.5km/s[J]. Int J Impact Engng, 1996,18(4):355-368.

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