A Study on Fragmentation Distribution of PELE

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (20) : 72-77.

Fan Zijian 12 Ran Xianwen 2 Tang Wenhui 2 Huang Qiusheng3

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Abstract

Target plate rear damage effect is closely related to the fragment’s size and quantity which are produced by penetrator with enhanced lateral effect (PELE). In order to study the factors influencing the scale of projectile shell fragments and determine the fragment distribution scale, on the basis of analysis of the expansion process of PELE projectile shell, according to Mott-Grady fragmentation theory. The theoretical analysis method of the distribution range of fragments scale is given. The correctness of the theoretical analysis is tested by experiments. By theoretical analysis and experimental study, projectile shell fragment size distribution is mainly affected by material density, crushing energy consumption, critical fracture strain and strain rate. The fragments width and number are greatly influenced by inner core material. With the increasing of density and elastic modulus of the inner core material the width of front-end fragment decreases the number increase, the radial velocity becomes large. The shell fragment length is determined by projectile impacting target speed and less affected by the inner core material.

Key words

PELE / Enhanced lateral effect / Dynamic fracture theory / Fragment size distribution

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Fan Zijian 12 Ran Xianwen 2 Tang Wenhui 2 Huang Qiusheng3. A Study on Fragmentation Distribution of PELE[J]. Journal of Vibration and Shock, 2017, 36(20): 72-77

References

[1] JIANG Jian-wei, ZHANG Mou, MEN Jian-bing, et al.. Study on fragmentation of PELE against thin targets [J]. Journal of Beijing Institute of Technology, 2011, 20(2): 168–172
[2]蒋建伟，张某，门见兵，等.PELE弹侵彻过程壳体膨胀破裂的数值模拟[J].计算力学学报，2009,26（4）：568-572.
Jiang Jianwei, Zhang Mou, Men Jianbing, et al. Numerical simulation of PELE natural fragments formation[J].Chinese Journal of Cmputational Mhanics, 2009,26（4）：568-572. （In Chinese）
[3] Jiang Jianwei, Zhang Mou, Men Jianbing, et al.Study on fragmentation and debries distribution of PELE projectile perforating thin target[C]//25th International Symposium on Ballistics,Bijing,china:IBC,2010:357-365.
[4] 朱建生, 赵国志, 杜中华, 等. PELE垂直侵彻薄靶板的机理分析.爆炸与冲击[J]. 2009(29):281-288.
Zhu jian-sheng, Zhao guo-zhi, Du Zhong-hua, et al. Mechanism of PELE Projectiles Perpendicularly Impacting on Thin Target Plates [J]. Explosion and Shock Waves, 2009(29):281-288.（In Chinese）
[5] Tu Shengyuan, Wang Junbo, An Zhentao, et al. Influence of Thickness of Armor on the Burst-Effect of Steel Shell PELE[C] ICEMI’2009,(4):926-929.
[6]. 凃胜元，沈晓军，王军波，等. 着速和靶厚对钢弹体PELE侵彻后效影响的试验研究[J].弹箭与制导学报,2010.6,30(3):69-71.
Tu Sheng-yuan, Shen Xiao-jun, Wang Jun-bo, et. al. Research on the Influence of Impact Velocity and Thickness of RHA on the Penetration Aftereffect of Steel Shell PELE by Experiment[J].Journal of Projectiles Rockers Missiles and Guidance, 2010.6,30(3):69-71. （In Chinese）
[7] Ji Pengyuan, Wang Haifu, Zhang Yuanfei, et al. Influence of structure parameters on terminal effcect of small caliber PELE impacting metal target[J].Journal of Beijing Institute of Technology,2011,20(2):187-191.
[8]孟燕刚，金学科，陆盼盼，等. 活性材料增强PELE杀伤效应[J].科技导报，2014,32（9）：31-35.
Meng Yangang,Jin Xueke,Lu Panan,et al.lethality effects of enhanced PELe of reactive materials[J]. Introduction of science and technology. 2014,32（9）：31-35. （In Chinese）
[9] G. Paulus, V. Schirm, Impact Behavior of PELE Projectiles Perforating Thin Target Plates [J]. International Journal of Impact Engineering, 2006(33):566-579.
[10]Jimmy Verreault. Analytical and numerical description of the PELE fragmentation upon impact with thin target plates [J]. International Journal of Impact Engineering, 2015(76):196-206.
[11]Dennis Grady. Fragmentation of rings and shells [M].Berlin: Springer-Verilag Berlin Heidelberg 2006:10-46.
[12]Grady D E, Olsen M L. A statistics and energy basedtheory of dynamic fragmentation[J].International Jounal of Impact Engineering. 2003(29):293-306.
[13]Grady D E. Impact failure and fragmentatin properties of tungsten carbide[J]. International Jounal of Impact Engineering. 1999(23):307-317.
[14]Zijian Fan, Xianwen Ran, Wenhui Tang, et al. The model to calculate the radial velocities of fragments after PELE penetrator perforating a thin plate[J].International Jounal of Impact Engineering. 2016(95):12-16.
[15]毛亮，王华，姜春兰，等，钨合金球形破片侵彻陶瓷/DFRP复合靶的弹道极限速度[J],振动与冲击，2015.13（34）:1-5.
Mao Liang, Wang Hua, Jiang Chunlan, et al. Ballistic limit velocity of tungsten alloy spherical fragment penetrationg ceramic/ DFRP composite target plates[J]. Journal of vibration and shock. 2015.13（34）:1-5.(In Chinese)