战斗部装药冲击损伤及热点形成的数值分析

成丽蓉; 施惠基; 陈荣

doi:10.11858/gywlxb.2013.04.017

战斗部装药冲击损伤及热点形成的数值分析

doi: 10.11858/gywlxb.2013.04.017

成丽蓉^1,2, ,,
施惠基¹,
陈荣³

1.
清华大学航天航空学院，北京 100084；
2.
第二炮兵装备研究院，北京 100085；
3.
国防科技大学理学院技术物理研究所，湖南长沙 410073

详细信息

通讯作者:
成丽蓉 E-mail:2223049089@qq.com

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出版历程
- 收稿日期: 2011-11-23
- 修回日期: 2011-12-20
- 刊出日期: 2013-08-15

Numerical Simulation on the Damage and Hot-Spot Formation in Warhead Charge under Shock

1.
School of Aerospace, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;
2.
The Equipment Research Institute of PLA's Second Artillery, Beijing 100085, China;
3.
Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha 410073, China

摘要

摘要: 针对战斗部装药侵彻安定性这一难点问题，通过研究战斗部侵彻过程中内部装药损伤破坏与热点形成的关系，建立了耦合宏观力学变形与微裂纹损伤演化的粘弹性炸药本构关系以及裂纹摩擦生热细观模型。利用建立的数理模型，分析了在侵彻环境下装药内部热点的生成机理，比较不同侵彻环境对热点生成的影响。该战斗部装药侵彻安定性数值模拟方法，可用于战斗部装药的设计及评估。
- 侵彻 /
- 安定性 /
- 热点 /
- 数值模拟
Abstract: In order to solve the difficult problem about the security of warhead in the penetration process, the relationship between damage and hot-spot formation in the charge has been researched. Based on crack friction under mechanical impact, a thermo-viscoelasticity constitutive model for explosive materials coupling the crack damage and hot spot formation is presented to analyze the formation of hot spot in warhead charge during penetration. The influence factors of hot-spot formation under different penetration conditions are discussed and compared. The numerical simulation method provided can be used to design and evaluate the security of loaded projectiles under impact.
- penetration /
- security /
- hot spot /
- numerical simulation

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参考文献(12)

Vandersall K S, Chidester S K, Forbes J W, et al. Experimental and modeling studies of crush, puncture, and perforation scenarios in the Steven impact test [C]//Proceedings of the 12th International Detonation Symposium. San Diego, USA, 2002.

Wortley S, Jones A, Cartwright M, et al. Low speed impact of pristine and aged solid high explosive [C]//Proceedings of the 12th International Detonation Symposium. San Diego, USA, 2002.

Dienes J K. Frictional hot-spots and propellant sensitivity [J]. Mater Res Soc Symp Proc, 1984, 24: 373-381.

Howe P M, Gibbons G Jr, Webber P E. An experimental investigation of the role of shear in initiation of detonation by impact [C]//Proceedings of the 8th International Symposium on Detonation, 1985: 294-306.

Addessio F L, Johnson J N. A constitutive model for the dynamic response of brittle materials [J]. J Appl Phys, 1990, 67(7): 3275-3286.

Haberman K S, Bennett J G, Asay B W, et al. Modeling, simulation and experimental verification of constitutive models for energetic materials [J]. AIP Conf Proc, 1997, 429: 273-276.

Chen G N, Zhang W H. Numerical analysis on deformation of SRM and hot spot formation in grain under mechanical impact [J]. Journal of Solid Rocket Technology, 2006, 29(2): 98-102. (in Chinese)

陈广南, 张为华. 固体火箭发动机撞击变形及装药内部热点形成数值分析 [J]. 固体火箭技术, 2006, 29(2): 98-102.

Xi T G. Thermophysical Properties of Inorganic Materials [M]. Shanghai: Shanghai Scientific and Technical Publishers, 1981: 186-190. (in Chinese)

奚同庚. 无机材料热物性学 [M]. 上海: 上海科学技术出版社, 1981: 186-190.

Gao J X, Zhao W G, Zheng T. Study on the anti-overloading technique for penetrating warhead charge [J]. Initiators Pyrotechnics, 2008(4): 4-7. (in Chinese)

高金霞, 赵卫刚, 郑腾. 侵彻战斗部装药抗过载技术研究 [J]. 火工品, 2008(4): 4-7.

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