|本期目录/Table of Contents|

[1]宋玉江,周涛,沈飞,等.双层预制破片爆轰驱动早期行为研究[J].火炸药学报,2018,41(3):308-313.[doi:10.14077/j.issn.1007-7812.2018.03.017]
 SONG Yu-jiang,ZHOU Tao,SHEN Fei,et al.Research on the Behavior of Initial Stage about Explosively-driven Double-layered Premade Fragments[J].,2018,41(3):308-313.[doi:10.14077/j.issn.1007-7812.2018.03.017]
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双层预制破片爆轰驱动早期行为研究()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第3期
页码:
308-313
栏目:
出版日期:
2018-06-29

文章信息/Info

Title:
Research on the Behavior of Initial Stage about Explosively-driven Double-layered Premade Fragments
作者:
宋玉江 周涛 沈飞 王辉
西安近代化学研究所, 陕西 西安 710065
Author(s):
SONG Yu-jiang ZHOU Tao SHEN Fei WANG Hui
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
关键词:
爆炸力学杀爆战斗部双层预制破片爆轰驱动闪光X射线摄影
Keywords:
explosion mechanicsblast-fragmentation warheaddouble-layered fragmentsexplosively driveflash X-ray photography method
分类号:
TJ55;O389
DOI:
10.14077/j.issn.1007-7812.2018.03.017
文献标志码:
-
摘要:
通过分析方/球形双层预制破片在典型排布方式下的受力状态,并结合炸药爆轰驱动能量的释放规律,将双层破片的加速过程分为两个阶段,即冲击碰撞加速阶段和气体产物膨胀加速阶段;采用闪光X射线照相方法测量破片在冲击碰撞加速阶段的加速过程,然后结合经典Gurney公式计算出气体产物膨胀加速效果;对典型钨、钢材料的方/球形双层破片进行了试验和理论分析。结果表明,外层破片的初速均高于内层破片,其中,外、内层方形钢破片的初速比值最大,约为1.48,且外层方形破片由于受到较强拉伸波作用而出现明显破损;而外、内层球形钨破片的初速比值最小,仅为1.08,且球形破片大多为斜侧方对称受力,难以形成较强且较为集中的拉伸波,使得外层破片的完整性较好。
Abstract:
By analyzing the stress state of double-layered cubical/spherical prefabricated fragments under the typical arrangement and combining the release law of detonation driving energy, the acceleration process of double-layered fragments was divided into two stages, namely, shock acceleration stage and expansion acceleration stage of gas product. The acceleration process of fragment in the shock acceleration stage was measured by flash X-ray photography, the acceleration effect of gas product expansion was calculated by classical Gurney formula. The experimental and theoretical analysis of the double-layered cubical/spherical fragments of typical tungsten and steel materials were carried out. The results show that the initial velocity of the outer layer fragments is higher than that of the inner layer fragments, wherein, the ratio of the initial velocity of the inner and outer layered cubical steel fragments is the largest, which is about 1.48, and the outer layered cubical steel fragments is obviously damaged due to the strong tensile wave action. The ratio of the initial velocity of the inner and outer layered spherical tungsten fragments is the smallest, which is only 1.08. Moreover, the spherical fragments are mainly subjected to the symmetrical force from the inclined sides, so that it is difficult to form a stronger and more concentrated tensile wave, resulting in better integrity of the outer fragments.

参考文献/References:

[1] Charron Y J. Estimation of velocity distribution of fragmenting warheads using a modified gurney method[D]. Canadian:Air Force Institute of Technology, 1979.
[2] Hutchinson M D. With-fracture Gurney model to estimate both fragment and blast Impulses[J]. Central European Journal of Energetic Materials, 2010, 7(2):175-186.
[3] 印立魁, 蒋建伟, 门建兵, 等. 立方体预制破片战斗部破片初速计算模型[J]. 兵工学报, 2014, 35(12):1967-1971. YIN Li-kui, JIANG Jian-wei, MEN Jian-bin, et al. An initial velocity model of explosively-driven cubical fragments[J]. Acta Armamentarii, 2014, 35(12):1967-1971.
[4] 印立魁, 蒋建伟.多层球形预制破片战斗部破片初速场的计算模型[J]. 含能材料,2014,22(3):300-305. YIN Li-kui, JIANG Jian-wei. Calculation model of initial velocity field on multilayered spherical fragments warhead[J]. Chinese Journal of Energetic Materials, 2014, 22(3):300-305.
[5] 魏继锋, 焦清介, 吴成. 预制破片战斗部试验与数值模拟研究[J]. 弹箭与制导学报, 2004, 24(3):39-41. WEI Ji-feng, JIAO Qing-jie, WU Cheng. Experiment and simulation on premade fragment warhead[J].Journal of Projectiles, Rockets, Missiles and Guidance, 2004, 24(3):39-41.
[6] Porter W R. Radially expanding fragmentation warhead study,AD0348620[R]. Florida:Directorate of Armament Development, 1963.
[7] 张立建, 沈飞. 爆轰加载下双层预制破片初速梯度研究[J]. 科学技术与工程, 2015, 15(25):135-138. ZHANG Li-jian, SHEN Fei. Research on the initial velocity gradient of explosively driving double-layered fragments[J]. Science Technology and Engineering, 2015, 15(25):135-138.
[8] 沈飞, 王辉, 袁建飞, 等. 铝含量对RDX基含铝炸药驱动能力的影响[J]. 火炸药学报, 2013, 36(3):50-53. SHEN Fei, WANG Hui, YUAN Jian-fei, et al. Influence of Al content on the driving ability of RDX-based aluminized explosives[J]. Chinese Journal of Explosives & Propellants (Huozhayao Xuebao), 2013, 36(3):50-53.
[9] 黄正祥, 祖旭东. 终点效应[M]. 北京:科学出版社, 2014.

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备注/Memo

备注/Memo:
收稿日期:2017-11-06;改回日期:2018-03-06。
基金项目:国家重大基础科研专项
作者简介:宋玉江(1978-),男,工程师,从事爆炸力学及战斗部设计研究。E-mail:songyjyxh@163.com
通讯作者:王辉(1977-),男,高级工程师,从事炸药爆轰性能试验与理论研究。E-mail:land_wind@163.com
更新日期/Last Update: 1900-01-01